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How to Tell If Your House is Well Insulated

You’ve invested a good deal of money in your home, and it is only natural to expect the temperatures to be comfortable and consistent. You should also be able to expect reasonable heating and cooling bills. But what do you do when that isn’t the case? You start thinking, how can I tell if my house is well insulated? Let’s look at the signs of a well-insulated home and see if yours can past the test.

Energy Bills

heating bill Blown insulation in the walls and attic of your home will settle with time. As it does so, its ability to properly insulate your home begins to decrease. If you’ve noticed that your home energy bills (e.g., electricity and natural gas) have been rising steadily over the past few years, that’s a good sign. This means that the blown-in insulation is settling. Another sign is your heating or cooling units working more than normal to just to keep the house at a steady temperature.

Wall and Floor Temperatures

Here’s another great way to tell if your home is well insulated. Use your hand to check the temperature of interior walls, floors, and ceilings. If they feel warm and dry, you are in good shape. If they feel cold or damp, then you have an insulation problem. Note that it is natural for exterior walls to feel cold, because good insulation will keep the warmth inside your home and the cold air outside.


wrapped pipes If your pipes rarely freeze, that is an excellent sign of good insulation. On the other hand, if the pipes in your walls freeze regularly (even worse, burst) then you can be sure that your home is not well insulated. When exterior walls are properly insulated, they protect the pipes within them from the freezing temperatures outside.

Absence of Drafts

A house without cold drafts is a well-insulated one. Cool air enters around doorways and window frames. In the winter months if there is no insulation, there will be a draft. Insulation, including foam insulation for cracks and crevices, will drastically reduce the occurrence of drafts. Not only will good insulation stop unexpected cold breezes, but it can put a stop to unexpected visitors in the form of mice and insects. If you have a significant number of these intruders, you can bet that your home isn’t as well insulated as it should be. If bugs can get in, so can cold drafts.

Consistent Temperatures

insulation A well-insulated home with have consistent temperature throughout the house. You won’t find one room especially warm while another always seems a bit too chilly. If you find a noticeable temperature differential, there is a good chance that your home is under-insulated. Note that this uneven temperature range can also be caused when blown-in insulation settles over time. You might also notice that only certain rooms are at a different temperature than the rest. These rooms maybe hotter in the summertime and colder in the wintertime. This especially happens with rooms below the attic or above the garage. Again, the cause most likely lies in the insulation.

No Water Leaks

water leaking If you have water leaks in your attic or around your windows, you could have an insulation issue. Poorly distributed insulation can let not just heat but water into your home. Whereas well-distributed insulation can help protect from both. And keep in mind that these leaks are not something to ignore or procrastinate about addressing. Another interesting water-related sign that you have insulation problems is if ice dams develop on the roof of your home. If your home is poorly insulated, then heat from the interior rises through the attic to the roof. Once there, it melts the bottom layer of snow on your roof in the winter. That water then begins to slowly trickle down the surface of your roof. Where it naturally ends up in the gutters or dripping off the edge of your roof. The end result is gigantic icicles hanging off the edge of your roof and large chunks of ice in your gutters. This is called “ice damming”. It will damage your roof and can injure an unlucky person who happens to walk under them at the wrong time.

Benefits of a Well-Insulated Home

wall and floor When your home is well-insulated, your energy bills will be lower and the temperature in your home will be far more consistent. The interior floors won’t be icy cold to step on in the morning, and you’ll see fewer rodents and insects making their way in. You’ll reduce the chances of water leaks in the attic and the damage that can result, as well as avoid having to deal with frozen and burst pipes. Ice damming will no longer be a problem. Contact Drew Green Today! If you want to know for sure that you’re not throwing money down the drain heating and cooling a poorly insulated home, call the insulation professionals at Drew Grew. Our technicians have the tools and the training to accurately evaluate any insulation issues. If you are ready for lower energy bills, consistent temperatures, and fewer problems with insects or water leaks, call us today at 224-730-0692 for a free estimate.

Why Is My Air Conditioner Blowing Warm Air?

It’s hot outside, and you come home expecting a pleasant rush of cool air, as you open the front door. But there is no rush of cool air. You check the air flow from the vent, and it turns out that your air conditioner is blowing warm air. There are several common causes behind this type of problem with air conditioners. Some of which have an easy fix, and some of which will require a serviceperson.

Thermostat Settings

The setting of the fan, may affect the temperature of the air your AC is pumping out. This is the mechanism that circulates air through your home. Most AC experts recommend that you set the fan to AUTO rather than to ON. On AUTO, the fan will only come on when the air conditioner itself is activated. In other words, if the air conditioner is not running, neither is the fan. If the fan is set to ON, it will blow warm air through your house when the air conditioner isn’t activated. Make sure the fan is set to AUTO before resorting to a repair call.

Dirty Air Filters Restrict Air Flow

Air Filter Air filters are used to protect your system from contaminants, like pet hair and dust. When the filter gets dirty, it restricts air flow to your unit. One of the results can be the circulation of warm air instead of cool air. Check manufacturer guidelines to find out how often to change (or clean) your filters. If your air conditioner is blowing warm air, experts recommend that you change out the filter before you call a repairman.

Dirty Coils in the Outdoor Unit

The coils on your outdoor unit can develop a buildup of dust and pollen. If the coils are dirty, then the outdoor unit can’t do its job correctly and one of the results will be your air conditioner blowing warm air. Good technicians will always take the time to clean off the coils in your outdoor unit when servicing it during the summer. You can clean the coils off yourself with a hose running gentle water (there is no need for a high-pressure sprayer).

Restricted Airflow to the Coils in the Outdoor Unit

The coils in your outdoor unit need to have plenty of airflow around them. For that reason, you need to keep all shrubs and plants at least a few feet away from your outdoor unit. plants on a houseDuring the summer months, plants can grow pretty quickly and begin to cause restrictions in air flow. Preventing your system from properly cooling the air being blowing through your home. Check to make sure that bushes or shrubbery aren’t causing airflow restriction.

Outdoor Unit Not Receiving Electricity

You should also make sure that your outdoor unit is actually getting electricity. It is possible for the indoor unit to be running while the outdoor unit is off. The fan will circulate warm air, in the event that the outdoor unit isn’t functioning. If you find that the outdoor unit isn’t running, check is the circuit breaker. If the fuse has blown or the circuit breaker has tripped, that would stop the flow of electricity. You should call a technician before trying to turn it back on.

Frozen Evaporator Coil

Frozen Coil The evaporator coil on your air conditioning unit can freeze into what is essentially a solid block of ice. This blocks the cool air from flowing to the vents and into your home, so your air conditioner will blow warm air. The evaporator coil is supposed to form cold condensation to cool down the air that flows over it on the way to the vents in your home. If the air blowing over the coil is cooler than the freezing point of water (which can happen on hot days if you set the system temperature below 70°F), then the condensation will freeze and form ice. More ice forms until air can no longer flow over the evaporator coils. Causing the unit to blow warm air. A quick fix is to turn your air conditioning unit off for a few hours to allow the ice to thaw. Your air conditioning system should work properly after that. If it freezes up again, it’s time to call a technician to have your system evaluated.

Low Refrigerant

Refrigerant is used to cool the air in your home by absorbing heat from the air. If there is not enough refrigerant in your system, then it cannot cool the air. Refrigerant leaks are a very common cause of an air conditioning blowing warm air. If your refrigerant is low, a good technician will not only top it off but will also track down and fix the source of the leak.

Leaking Ductwork

leaking ductwork There is a chance that very hot air from your attic is being pulled into the ducts. This is a strong possibility if there are leaks in your ductwork. Causing the air exiting your vents to be warmer than it should be. Technicians can track down the source of leaks using a smoke-like substance. Then repair them fairly easily. Call Drew Green Heating & Air (more…)

Key Ways That You Can Improve Indoor Air Quality

We know that outside air can be filled with pollutants, but so can indoor air. Modern buildings are far more “air tight” than older ones, which means that pollutants in our homes and offices are more likely to become trapped inside. In addition, people are spending more time indoors than ever before. As a result of these trends, people are far more sensitive to indoor air than in the past – and the quality of our indoor air may be far worse than that of the outdoors. We know that poor air quality can have a major impact on health and in extreme cases can even lead to death. So what measures can be taken to improve the quality of air inside homes and offices? General Approaches to Improving Indoor Quality According to the EPA, there are three basic ways to improve the indoor air quality of your home:
  • Eliminate or control sources of contamination
  • Improve ventilation
  • Make use of air cleaners
Let us discuss each of these approaches in more detail.

Sources of Indoor Air Contamination

There are myriad sources of contamination inside your home or office. If it is an older building, there may be asbestos or lead paint. Biological pollutants such as animal dander, dust, pollen, mold, and bacteria can also create issues. Second-hand smoke, carbon monoxide, stoves, heaters, and fireplaces can be the source of contamination, as well. VOCs (volatile organic compounds) can be another major cause of contamination and include some paints, hobby products, varnishes, and wax. Formaldehyde and pressed wood can also be problematic. Then there is particulate matter than can be inhaled into the lungs and cause severe health problems.

Dealing with Sources of Contamination

The most cost-efficient way of improving indoor air quality is to eliminate or control the sources of contamination. That could mean removing lead paint, eliminating the use of VOCs, or treating occurrences of moisture related problems such as mold and mildew. Gas stoves should be replaced with electric stoves, fireplaces could be replaced with a more environmentally friendly heater, and pressed wood products can be removed. However, this approach is not always feasible. Using floor mats at entrances and exits can trap particles, bacteria, fungi, pesticides, and other unpleasant material that may be riding in on the soles of shoes, thus limiting the particles’ ability to mix with the indoor air. And never be ashamed to ask visitors to remove their shoes when entering your home so pollutants aren’t further tracked in. Using vacuums with a HEPA filter can trap dust, mites, and dander. VOCs can often enter our homes through via our cleaning supplies. Look for more natural solutions to cleansers and deodorizers, such as vinegar, citrus juice, or baking soda. When cleaning with powerful chemicals, renovating, or working on a hobby that introduces pollutants to your home, make sure to properly ventilate.

Improving Ventilation

When certain sources of contamination cannot be eliminated, the next approach is to improve ventilation. Ventilation is improved by bringing in more outdoor air to an enclosed space. This can be accomplished by opening windows or doors, and installing exhaust fans in key areas such as bathrooms, kitchens, and hobby rooms. Also, new technology and methods in air conditioning have provided additional options for ventilation, such as whole-house ventilation. Your indoor air conditioning system can also increase ventilation. Such systems use filters to remove particulate matter from the household air as it is recirculated. Make sure to change these filters on a recommended basis and follow manufacturer recommendations for the type of filter to use. Remember that doors and windows do not need to be left open for extended periods of time to refresh the indoor air: just five minutes a day can make a huge difference. Using window or door screens can keep out unwelcome guests such as insects or birds.

Using Air Cleaners

Air cleaners focus on the removal of particulate matter, such as dust, pet dander, smoke, or pollen. Because their applicability is limited, they are not considered to be a stand-alone solution to indoor air quality issues. However, for individuals who are sensitive to certain pollutants in particulate form, they can make an enormous difference. In fact, for those who suffer from allergies they are vital. Note that there are a wide variety of air cleaners available, and they can be added to your current air conditioning setup by a trained professional.

Although not strictly an air cleaner, dehumidifiers can help keep the levels of some particulates under control. A humidity level between 30% and 50% has been found to be quite effective, especially regarding common allergens. Exhaust fans for typically humid household areas, such as bathrooms or kitchens, can be crucial to keeping humidity under control.

You Can Make a Difference in Indoor Air Quality

We may not always be able to protect ourselves from outdoor pollutants, but we can take measures to improve indoor air quality. Eliminating sources of contamination, improving ventilation, and using air cleaners can make a significant difference in the cleanliness of the air we breathe. Reach Out to Drew Green Heating and Cooling Today!

Whether it’s a residential or commercial building whose indoor air quality you are concerned about,Drew Green Heating and Cooling is your answer. We don’t just help you keep your temperatures comfortable, but we work with you to improve your indoor air quality. We can install air cleaners as part of an existing air conditioning system, clean your existing ductwork, install alternate ventilation solutions, and much more. Give us a call right now to discuss the best options for your home!

The Top-Rated HVAC Brands

HVAC stands for “heating, ventilation, and air conditioning.” An HVAC system is an integrated system in a home or business that brings together the elements of the boiler or furnace, the cooling apparatus, and the ventilation system. Some may also include an air filtration option. With an HVAC system, all elements can be controlled by a single interface. HVAC systems provide the benefit that none of elements will be working in conflict with one another. An integrated system also has the advantage of running more cost-effectively and energy efficiently than separate systems. Also delivering improved reliability and fewer maintenance requirements.

Before you hire an HVAC contractor, it’s important to learn a bit about the optimal brand and model for your needs and your budget. Here are our top five brand picks among the many available options. We’ve made our recommendations after evaluating these brands in terms of energy efficiency or SEER rating, noise levels, cost, and warranty coverage.

Seasonal Energy Efficiency Ratio (SEER)

When you’re considering purchasing a new HVAC system, you will want to take the SEER rating into account. An air conditioner’s SEER rating is the ratio of the unit’s cooling output over an average season divided by the energy it consumes in watt hours. The higher the SEER rating, the better the unit’s efficiency.

According to the US Department of Energy’s current standards, air conditioners must be produced with a minimum SEER rating of 13, and in the southern states the minimum rating is 14. As technology improves, the maximum number increases and minimum standards may be raised. Remember that the SEER rating expresses the maximum efficiency of the unit. However, actual efficiency depends on the temperature inside and outside of your home, the quality of your ductwork, and other factors.

The Best HVAC Brands


Amana is an all-around exceptional pick for its excellent energy efficiency and warranty coverage. While it’s certainly not the cheapest option, it’s not the most expensive, either.

Homeowners who are keen to avoid expensive repairs in the future would do well to seriously consider an Amana HVAC system. If you purchase a unit with a SEER rating of 16 or higher, any repairs to the compressor or heat exchanger (the most expensive parts) will be covered by the manufacturer. This is exclusive to home owners. Units with a SEER rating below 16, come with a 10-year warranty on all parts. Amana is widely known to have the best warranty in the industry.


Lennox sits close to the top of our list due to its continuous spirit of innovation and its standout SEER ratings. Some reach into the mid-20s, although it does produce several models that have a lower rating. The biggest tradeoff being that they are more budget friendly. Lennox’s higher-end products have multiple speed settings, allowing the units to run at a desired temperature, using the least amount of energy necessary. Control via an app on your smartphone allows you to turn your HVAC off from a remote location, in case you forget.

As you might expect from such a well-engineered product, replacement parts come at a premium. And since the brand does not offer a lifetime warranty, you will be paying out of pocket for repairs after ten years. Most Lennox products carry the Energy Star seal.


Trane is one of the most reliable names in heating and cooling systems. Optional air filtration systems remove pollen, dust, and other contaminants for the safest, cleanest indoor air possible. Many models are Energy Star rated.

All units are evaluated for noise pollution levels, so sensitive customers may choose wisely. Ratings are also provided for the Annual Fuel Utilization Efficiency for gas furnaces. This gives you a precise idea of how much of the fuel you pay for is utilized by your system. Trane produces some models that successfully utilize a minimum of 90% of your fuel expenditure, exceeding the current government minimum standard.


Environmentally conscious folks will find Goodman HVACs a standout. They are manufactured to run on a chlorine-free refrigerant, which is easier on the ozone layer. Their specially designed compressor has fewer moving parts than an average compressor, leading to reduced energy consumption.

Goodman’s average SEER rating is above 15—not the highest reviewed here. However it is still above the national minimum of 13. Goodman is the only brand on our list not to offer a model of at least 22 SEER. This may be less of an issue if you live in an area where summers are not excessively hot.

Goodman’s offering of five HVAC units all run fairly quietly. For those who are particularly sensitive to noise or whose units are placed close to decks or patios, there is an optional foam blanket that deadens the sound output even further.

American Standard

American Standard’s strengths are in their variety of options, as well as in their reliability. We tend to receive very few service calls from our American Standard customers. Depending on the model you choose, parts will come with a warranty of 10 to 20 years. This is something to factor in when making your choice. American Standard’s products are manufactured to be energy, noise, and environmentally conscious. Some models boast a dual-stage compressor that runs at 70 percent most of the time. Increasing power only when needed. According to independent testing, American Standard’s products are the quietest on the market.

Drew Green Knows HVAC

Drew Green Heating & Cooling is Illinois’ premier heating and cooling expert. Providing service, installation, repairs, and maintenance work to Lake County, the North Shore, and the northern parts of Chicago. With almost a decade’s worth of experience in the area. Our certified, expert technicians provide around-the-clock service so that we’re there when you need us most.

We are happy to provide our customers with personalized recommendations regarding their best choice in HVAC systems. Whether you are building a new home or need to replace an outdated system. We also provide advice regarding insulation and improving the quality of the air in your home or office. Contact us today to discuss the best heating and cooling options for you!

Why Isn’t My House Cooling Down?

There are few things more frustrating on a hot summer day than running an air conditioner that can’t keep up with cooling your space. The cause of the inefficiency may range from a simple maintenance task that has gone overlooked for too long, like changing out a dirty filter, to a more serious problem, like a refrigerant leak, that requires a visit from an AC repairman.

Air Filter is Dirty

One potential cause of a unit that won’t cool sufficiently is a dirty air filter. If the air filter becomes clogged by dust, pet hair, and similar debris, then there isn’t enough air flow for your air conditioning unit to keep your house cool. You should check your manufacturer guidelines to find out the size and type of filter you need, and follow recommendations about how often to clean or replace your air filter. It’s a good idea to try changing out your air filter to see if that helps before calling out a repairman.


windos Your windows are the source of much of the heat that invades your home during the summer months. Even the highest quality windows can’t completely insulate your home from the extreme temperatures outside, but older windows are especially problematic. If you are having trouble keeping your home cool, try closing the blinds during the hottest part of the day. If you are still having problems, you might want to install blackout curtains, which work well to block out both light and heat. If you’re interested in a more permanent solution that allows you to enjoy the sunlight, then you might want to invest in some double or triple pane windows that provide much improved insulation.


Insulation keeps the cold out of your home during the winter, but not everyone realizes that it also keeps the cool air in during the summer while protecting your home from the hot temperatures outside. Poor insulation can make it extremely difficult for your air conditioning system to keep your house at a comfortable temperature.


Your thermostat senses the temperature in your home and turns the AC unit on to maintain the temperature setting you’ve indicated. Most AC experts recommend that you set the fan to AUTO instead of ON. On AUTO, the fan only comes on when the AC comes on; if it’s set to ON, the fan blows all the time and will be blowing warm air when the AC isn’t on. If the thermostat has a low battery or, worse yet, a dead battery, it won’t be able to function properly. If you see a “low battery” indicator, then try replacing the batteries. If the problem isn’t a low battery, make sure the thermostat is set on a lower temperature than the outdoor weather. Sometimes thermostats malfunction and need to be replaced, a task that an AC technician can easily accomplish if necessary.

Your Outdoor Unit

outdoor unit The evaporator coils and condenser coils on your outdoor unit need plenty of airflow around them in order to do their job properly. That’s why, as a general rule, you need to keep all plants, shrubbery, and flowers at least a few feet away from all sides of your unit. Dust, dirt, leaves, and pollen can build up on these coils, which is why it’s a good idea to either have a technician clean them off during your seasonal tune-up or occasionally rinse the outdoor unit off yourself with a gentle flow of water.

Leaking Ductwork

If your ductwork has developed some serious leaks, then your air conditioning unit won’t be able to keep your home cool. When you have leaky ductwork, the cool air that’s supposed to keep your rooms cool ends up going to unoccupied areas of the home, like the roof or your walls. An AC technician can use a non-toxic smoke to track down any leaks in your ductwork and then repair them for you.


Refrigerant is essentially what absorbs the heat from the air in your home. If your system doesn’t have enough refrigerant (often referred to as a charge), then it simply can’t keep your house cool on especially hot days. You may feel comfortable at night or early in the morning, but you’ll notice that it just can’t keep up in the heat of the day. Refrigerant leaks are not uncommon, and AC technicians can check refrigerant levels, find and fix the leaks, and then add the necessary charge of refrigerant needed for your system.

Other Potential Problems

power Sometimes it’s not that there is anything wrong with your system. In extreme cases, it might be that your system is just not powerful enough to cool your home efficiently—or, as they say in the AC industry, “undersized.” Other times it’s unusually hot (much higher than the average temperature) and your AC system was simply never meant to deal with that much heat.


Some issues, like dirty filters, low batteries, and leaking windows can cause your AC to have trouble cooling your home and are tasks that homeowners can easily check and fix. However, issues like low refrigerant or ductwork leaks require the expertise of a qualified AC technicians.

Drew Green Heating & Air

If your AC unit isn’t cooling like it should, give us a call at Drew Green! We offer 24-hour emergency service and can perform tune-ups, preventative maintenance, installation, and repairs. We work on AC systems, furnaces, boilers, and hot water heaters. Drew Green can help you with things like insulation and air purification, too. We are so confident in our ability to exceed your expectations that if you aren’t satisfied with the repair or installation we performed, we’ll return for free to make it right! Contact us today for a free estimate.

How to Hire an HVAC Contractor for an Air Conditioner Repair

Most homeowners will have to deal with an air conditioner repair at some point. AC units are complex appliances that are essential for hot summer months, so when a unit is not functioning properly, it can impose a large burden. Since there are numerous HVAC companies of varying competence at your disposal, the hiring process can be a challenge. This is a crucial decision, so before you hire an HVAC contractor, read these tips to help make the right choice.

Before You Hire an HVAC Contractor

Begin the Process as Soon as Possible

It may be tempting to put off air conditioning repairs, especially if you think they’re an unnecessary expense. In reality, if a unit is neglected, problems become worse and cooling costs increase. Maintenance of your unit is an essential part of owning an AC system. Ignoring repairs could lead to dangerous defects or even a total system failure. Since these problems tend to increase in urgency, you might end up cutting corners and settling for a inferior service to receive emergency repairs.

Check Testimonials, Reviews, and References

research reviews

Research companies within your area. Services like Google Reviews and Yelp allow homeowners to check out other customers’ experiences with contractors. Sort through reviews and look further into the companies with the highest reviews. Take note of what former customers enjoyed specifically and if anyone reported undesirable incidences. After online research, choose a few companies to contact and ask for references. A few questions to ask the references include:

  • Did they show up on time?
  • Did they finish when expected?
  • Were the technicians friendly and professional?
  • Did the end cost match the original estimate?
  • Would you hire this company again?
  • Ensure the Company is Licensed, Insured, and Bonded

    This is the most important step to take before you hire an HVAC contractor. Technicians are required to hold permits and licenses that authorize them to work on AC units. Bonding guarantees you are able to pursue a company if they do not show up or their work is insufficient. Proper insurance assures that you’re covered if the technicians cause damage to your property. Before hiring a company, make sure you request proof of all three of these certifications.

    Warranty Policy

    warranty policy

    A company that takes pride in their abilities will always guarantee their work. This will provide you with peace of mind knowing that your unit will function properly, and if it doesn’t, the technicians will return for free. Ask potential companies how long they guarantee their repairs and if they provide free supplemental services if necessary.

    Get Estimates

    Once you’ve finished the first few steps, now it’s time to weigh your options. Ask a few different companies for an estimate on the cost of your repair. It’s best to choose companies that provide free estimates so you can receive enough to make the best choice. Make sure you receive a written, itemized estimate so you have proof of the agreement should anything change. It’s important to remember that you shouldn’t just choose the cheapest company, but the company with a reasonable price and the best reputation. Be sure to carefully consider your options.

    When the Technicians Arrive

    First Impression

    When the technicians arrive at your home, check that they arrive in a van with the company logo on the side. If an unmarked vehicle shows up with little to no tools and parts, you can be almost certain its a scam. In addition to scoping out the vehicle, take note of the technicians. Are they clean, uniformed, and professional? Do they seem ready to work and caring about their duties? Are they disheveled, rude, or disrespectful? If you are put off by the technicians, ask them to leave and quickly contact the company with your concerns.

    Ask for Identification

    Allowing practical strangers into your home can be intimidating. Make sure the company provides you with the names of the technicians that will be working on your repair. When they arrive, ask for their identification. If the identity does not match, contact the company and do not let them work on the unit. If there is a change in technician, they should let you know before they arrive.

    Payment Scams


    A trustworthy HVAC company will not ask for the total payment before the repair. Upfront payment is a sure sign of a scamming business looking to make a buck, so if they demand it, send them away and contact the company. This is why it’s so important to receive an estimate in writing that details the payment schedule.

    Pushing Extra Costs

    If the technicians start pressuring you to buy new parts for the unit, stand your ground. They should indicate all necessary replacement parts in the written estimate and contract. Technicians may take advantage of everyday people who do not have experience with HVAC units and try to persuade them to spend money on things they don’t need.

    After the Repair

    Written Summary and Guarantee

    summary of services

    A trustworthy company will provide a detailed report of all services done to your unit in case you need to contact them for a follow up visit. This report will allow you to show them what work was done so they can better understand how to remedy any issues that may come up after the repair. As mentioned before, its best to work with a company that is comfortable guaranteeing their work and offering free returns.

    Rate and Review

    After the repair is completed and has held up for a while, help future customers looking to hire an HVAC contractor by rating and reviewing the company online. If you had a poor experience or any concerns, make sure you indicate that. Provide feedback both for other customers as well as the company. A company may take your feedback and use it to improve their services. The Internet is a fantastic resource for homeowners seeking out assistance, so make sure you contribute, no matter what your experience was like!

    Looking to Hire an HVAC Contractor to Repair your Unit?

    hire an hvac contractor

    Drew Green Heating & Cooling has nearly a decade of experience serving Lake County, the North Shore, and Northern areas of Chicago. All of our technicians are professionally trained and certified and take great pride in their work. We provide free estimates, 24/7 emergency services, and free return guarantees. If you’re in need of an AC repair, don’t suffer in the heat—contact us today!

    Air Conditioner Maintenance: Why It’s Important to Service Your AC

    An air conditioning system is an important investment for a homeowner. If properly cared for, a central air conditioner should last 15-20 years. Air conditioner maintenance is a crucial measure that helps ensure the cooling unit operates at peak performance and lasts as long as possible. Not only does having an HVAC company service your AC decrease the risk for stressful repairs or a costly replacement, but it prolongs the system’s life-span and energy efficiency.

    When Should You Service Your AC?

    Summer is obviously the most important time of year when it comes to air conditioning. The last thing you want is your AC to breakdown during sweltering heat, so you should schedule annual air conditioner maintenance during the spring. Even if you haven’t noticed any problems, a yearly inspection is still highly recommended. The key to effective upkeep of a home investment is prevention. The best course of action is to not wait until the system is malfunctioning to have a professional inspect it. The longer you delay a checkup, the worse your air conditioner’s performance will be. For every year a unit goes without being serviced, it loses 5% of its efficiency. Over time, that loss can add up quickly and lead to larger issues and the massive headache of burdensome repairs or a total replacement.

    The Cost of Air Conditioner Maintenance

    wallet and credit card

    Typically, a routine service visit will cost around $70-100. This payment is minuscule compared to the costs it helps prevent. Repairs due to negligence can cost hundreds or even thousands of dollars.If your unit is ignored for long enough, you might need to replace it which will probably cost thousands.

    In addition to repairs, consider the indirect cost of your energy bill. The harder a unit has to work to keep you home cool, the more energy it guzzles up, leaving you with painfully high electricity bills. In fact, a unit that’s running correctly and efficiently can reduce energy costs up to 25%. So while it may seem like you’re saving a quick buck by letting your unit go unserviced, in reality you’re creating long-term financial hardships.

    How Does an HVAC Company Maintain an Air Conditioner?

    There are a handful of steps an HVAC company should take to service your AC. These measures help identify potential problems as well as give the unit an overall tune up.


    A clean filter ensures that the air in your home is fresh and that the rest of the unit is protected from dirt, pollen, and dust. A dirty filter puts strain on the system and causes it to work extra hard, leading to higher energy usage. An HVAC company will replace the filter or clean it if it’s reusable. While a filter can be taken care of during yearly servicing, it’s recommended you check it every month or so and replace or clean when needed.


    The evaporator coil is responsible for absorbing the heat from inside the home and the condenser coil pushes that heat out. Since the evaporator coil also removes humidity from your home, it tends to hold moisture and is therefore susceptible to trapping debris like dirt, pollen, and dust. This buildup can also interfere with the condenser coil’s function. Cleaning the coils thoroughly maintains your system’s cooling and dehumidifying ability.

    Drain Line

    The drain line allows the moisture collected by the coils to be expelled. If the drain is blocked or dirty, the proper flow of condensation is inhibited. Not only can this result in mold or algae growth, but humidity will be unable to exit the home causing a muggy indoor environment and possible water damage. Having the drain regularly cleaned will help decrease the risk of clogging and the issues that come with it.

    Condensate Pan

    The moisture that flows out of your unit through the drain line is then deposited onto the condensate pan. Cleaning the pan removes buildup of mold and algae that not only creates unpleasant odors, but causes backups and clogs in the drain line. A technician should also do a visual inspection of the pan to check for tiny holes caused by erosion. These holes lead to leaks and require replacement of the pan.


    If your AC is blowing warm air instead of cool, this is indicative of an insufficient amount of refrigerant. Refrigerant allows your unit to cool the air so without it, the unit is ineffective. By checking your refrigerant level, a technician can discover if you have a leak causing refrigerant loss and can remedy the problem.

    Leveling the Unit

    service your ac

    Your outdoor unit may end up leaning to one side and becoming uneven over time. If the unit is not flat on the ground, its function could be compromised. Refrigerant may not flow correctly, water may have difficulty draining, and the unit will be subject to excess strain. Leveling the unit is imperative and best left to a professional to prevent any damage.

    Need a Company With Experience in Air Conditioner Maintenance?

    air conditioner maintenance

    It’s difficult to overstate the importance of air conditioner maintenance, and it’s even more important to choose the best HVAC company possible to help you care for your investment. Drew Green Heating & Cooling has nearly a decade of experience serving Lake County, the North Shore, and Northern areas of Chicago. All of our technicians are professionally trained and certified. We offer the preventative maintenance services you need to keep your AC running smoothly so you can live comfortably and stress-free. We guarantee you will be satisfied with our service, and if not, we will return for free. You can have peace of mind in choosing to work with Drew Green Heating and Cooling – contact us today.

    How to change your air filter on your furnace

    It is recommended to replace your air filter once a month to make sure your heating and cooling system is running efficiently. Air filters help remove dust mites, pet dander, hair, and other pollutants in the air. If you do not change your air filter it can cause issues with your furnace or air conditioning unit. In order for your home to be heated or cooled correctly you need to make sure the air is flowing freely. It is also especially important for those with allergies as it can help remove a lot of dust from the air. Here is a video on how to replace your air filter yourself provided by HowToWith GEO.

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    Contact us today for a free estimate or to request one of our services.