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10 Best HVAC Companies in Deerfield, IL

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Written By Bradford Cuthrell

Last Updated April 2024

On average, Americans devote 55% of their energy usage to heating and cooling their home, according to the Department of Energy. Since heating and cooling represent such a significant chunk of your utility bills, you'll want to ensure that the HVAC system in your Deerfield home is functioning properly.

A top HVAC contractor can get your system into its best shape ever, saving you money while keeping your home comfortable. That's why we've assembled this guide to the top HVAC companies in Deerfield.

Top 10 Best HVAC Companies in Deerfield

AA Service Co Heating, Cooling & Plumbing

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346 Huehl Rd, Northbrook, IL 60062 (847) 579-9963 aaserviceco.com

Free quote

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Furnace repair
Zoning systems
Inspection
Filtration
Furnace installation
Maintenance
Ductless
Ac repair
Indoor air quality
Boiler repair
Radiant heating
Emergency services
Boiler installation
Ac installation

Libertyville Unique Indoor Comfort - Now AA Service Co

Libertyville Unique Indoor Comfort - Now AA Service Co Logo

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624 Second St, Libertyville, IL 60048 (847) 362-1910 aaserviceco.com

Informative resources

Reliable customer support

Clear pricing policy

Free quote

Services Offered

Radiant heating
Emergency services
Ac installation
Zoning systems
Boiler installation
Furnace repair
Boiler repair
Indoor air quality
Filtration
Ductless
Ac repair
Inspection
Maintenance
Furnace installation

Effective Air, Inc.

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2033 Johns Ct, Glenview, IL 60025 (847) 729-1820 effectiveair.com

Reliable customer support

Informative resources

Free quote

Clear pricing policy

Services Offered

Emergency services
Duct cleaning
Boiler repair
Filtration
Furnace installation
Ductless
Maintenance
Ac repair
Ac installation
Furnace repair
Boiler installation
Indoor air quality

iTemp Chicago Heating & Air Conditioning

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7616 Arcadia St, Morton Grove, IL 60053 (773) 704-0640 itemphvac.com

Free quote

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Ventilation
Ac installation
Ductless
Ac repair
Boiler installation
Emergency services
Duct cleaning
Zoning systems
Furnace installation
Furnace repair
Maintenance
Filtration
Indoor air quality

Air Blue Heating and Cooling

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513 N Wolf Rd, Wheeling, IL 60090 (847) 260-8648 airblueinc.com

Prompt service delivery

Informative resources

Clear pricing policy

Free quote

Reliable customer support

Services Offered

Duct cleaning
Indoor air quality
Ac installation
Smart home integration
Maintenance
Ventilation
Ac repair
Emergency services
Ductless
Boiler installation
Furnace installation

GSHA Services, LTD

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11 N Skokie Hwy #111c, Lake Bluff, IL 60044 (224) 507-6107 gshaservices.com

Prompt service delivery

Free quote

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

Indoor air quality
Furnace repair
Ac repair
Ac installation
Maintenance
Inspection
Furnace installation
Emergency services
Boiler installation
Duct cleaning
Ductless
Ventilation

Azrikam The Price Is Right Heating and Air Conditioning HVAC Company

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1363 Shermer Rd Ste 214, Northbrook, IL 60062 (847) 409-8699 thepriceisrighthvac.com

Clear pricing policy

Free quote

Informative resources

Reliable customer support

Services Offered

Filtration
Emergency services
Boiler installation
Ac repair
Furnace installation
Inspection
Ac installation
Maintenance
Furnace repair
Ductless
Ventilation
Duct cleaning

Carlson Heating, Cooling & Electric

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3340 W Lake Ave, Glenview, IL 60026 (847) 379-1609 callcarlson.com

Reliable customer support

Clear pricing policy

Informative resources

Free quote

Services Offered

Zoning systems
Ac installation
Furnace repair
Ac repair
Furnace installation
Filtration
Boiler installation
Maintenance
Inspection
Indoor air quality
Boiler repair
Radiant heating
Ductless
Emergency services

Guardian Heating & Cooling

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900 Skokie Blvd Suite 110, Northbrook, IL 60062 (847) 582-0925 guardianheatingandcooling.com

Prompt service delivery

Reliable customer support

Free quote

Informative resources

Clear pricing policy

Services Offered

Filtration
Maintenance
Duct cleaning
Furnace installation
Ductless
Smart home integration
Indoor air quality
Boiler installation
Ac repair
Ac installation

SAI AIR COMFORT

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9349 Fern Ln, Des Plaines, IL 60016 (224) 435-6077 saiaircomfort.com

Reliable customer support

Clear pricing policy

Prompt service delivery

Free quote

Informative resources

Services Offered

Duct cleaning
Boiler installation
Furnace repair
Ductless
Emergency services
Ac installation
Ac repair
Ventilation
Maintenance
Furnace installation
Indoor air quality
Today's Homeowner Ranking Methodology

Today's Homeowner looks at dozens of datapoints on hvac companies to come up with our data-driven rankings. It's not possible for a company to pay for preferential treatment in our rankings. We look at the following key factors in determining who should top our list:

  • Company Experience
  • Real User Reviews
  • Company Reputation
  • Accreditations and Licenses
  • Service Area
  • Customer Service
Have questions about our methodology or company ratings? Reach out to FindAPro@TodaysHomeowner.com.

Signs You May Need HVAC Repair or Replacement

If your HVAC system is having issues or getting near the end of its lifespan, it likely needs repairs or replacement from an HVAC company. Look for these indicators your system needs service:

  • Uneven heating/cooling or poor air circulation
  • Corrosion, cracking, or rust
  • Unusually high energy bills
  • Odd noises when the system turns on
  • Refrigerant leaks
  • Temperature control issues or thermostat malfunctions
  • Frequent breakdowns and need for repairs
  • An HVAC system that's over 15 years old

Schedule an inspection if you notice any of these issues. A local technician can assess your system, detect problems, and decide whether you need repairs or a new HVAC unit.

Cost of HVAC Installation and Maintenance in Deerfield

What you spend on HVAC installation or maintenance varies based on your system type. Common HVAC unit styles include the following:

  • Split or mini-split: Homes without ductwork for central air frequently have split or mini-split HVAC systems. These systems consist of interior units in each room to regulate temperature. These indoor units connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system works almost the same as a standard split system. It has the benefit of being able to utilize either electricity or gas for power.
  • Heat pump: Heat pumps work by transferring warm and cool air between your home and the outdoors. These systems don't produce heat or air conditioning themselves, and are more effective in more moderate climates.
  • Packaged heating and air: Packaged HVAC systems work well in smaller homes. They consist of a single combined air conditioner and heating unit, usually located in an attic or basement. This unit is typically small, cost-effective, and straightforward to maintain.

HVAC maintenance prices vary depending on the particular service needed. HVAC systems are complex and might require different maintenance services. Fees for common services are as follows:

HVAC Unit TypeCost
Split$1,973-$5,030
Hybrid Split$3,998-$7,366
Heat Pump$3,096-$31,544
Packaged Heating and Air$259-$432

Ways to Save Money on HVAC Costs

It’s important to take care of HVAC repairs and replacements when they are required, though they can be expensive. The good news is that homeowners have ways to minimize progressive deterioration and reduce the frequency of breakdowns.

  • Keep your system clean. Keeping your indoor evaporator coil, grills, ductwork, and condenser fan blades clean helps your system function optimally and reduces the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system whenever it begins to look dirty.
  • Change the position of your blinds seasonally. Keeping your blinds open in the winter helps you take advantage of passive solar heating. Keeping them closed in the summer helps keep some of this heat out. Both of these measures help reduce the frequency with which you need to run your HVAC.
  • Monitor for potential problems. Keeping an eye out for problems, for instance by consistently checking your thermostat and energy bills, allows you to resolve them before they get too expensive.
  • Change filters regularly. Changing your air filters or washing them every 30–90 days allows efficient air circulation through your system. Also try to keep debris from accumulating on the outdoor sections of your HVAC.
ServiceCost
Filter Replacement$65-$173
Condensor Cleaning$1,295-$3,886
Thermostat Repair$86-$216
Ductwork Cleaning$414-$1,036

How To Choose a Local HVAC Company

Knowing the indicators of a good HVAC company is important. Working with a contractor that's properly licensed and highly experienced will give you confidence that they can keep your system running efficiently, providing you with effective air conditioning and heating for your home.

Compare Multiple Bids

Contact at least three HVAC companies for quotes. Describe your issues and schedule an in-person inspection if possible. Compare companies' diagnoses, suggested repairs, estimated costs, warranties, and timeframes. Avoid companies that pressure you or demand upfront payment.

Check Credentials

Look for an HVAC company that employs skilled technicians who have the necessary training and licenses. In all states, HVAC contractors must obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required for any individual who helps "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." An individual must pass an exam (the type of exam depends on what kind of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled at the state level.

Illinois doesn't have state-level contractor licensing requirements. However, there may be local regulations, so make sure to check with your municipal government to verify that your contractor meets all the requirements. You can also verify an Illinois business license on the Secretary of State's website. You should also read reviews and complaints on sites like the Better Business Bureau (BBB), Google Reviews, and Yelp. Pick a company with glowing reviews and reports of great customer experiences.

Understand Work Details

It’s important to understand what the work process will look like. For HVAC repairs, the company should explain the particular parts that need replacement and why. Get confirmation that your technician will clean and test your system afterward to ensure proper functioning. When replacing your HVAC, ask the provider to explain the new energy efficiency, brand, estimated installation time, model, and features. Before signing a contract, be sure you understand how your provider will determine the right system size for your home and what the price will be.

Compare Warranties

Reliable HVAC companies offer warranties on repairs and installations. The more complete the coverage, the better. Review warranty details between providers and pick the one that offers the most comprehensive protection within your budget.

Get Quote in Writing

Always get estimates for HVAC service in writing before committing to a provider. A comprehensive quote should cover both labor and materials. Make sure you review all terms before signing a contract.

Frequently Asked Questions About HVAC in Deerfield, IL

Typically, you should have your HVAC system inspected twice a year. After an inspection, your HVAC technician will tell you what services are needed. You should also have an inspection if you start to notice any issues, like unusual smells, leaks, or strange noises. If you have ductwork in your home, it should be serviced every few years.

The best times of the year to have your HVAC system inspected are during the spring and fall. Technicians are often less busy during these times, making it easier to get an appointment. This also ensures that your system is ready for the summer and winter, the times of the year when it gets the most use.

You can save energy throughout the year by making it easier for your HVAC system to maintain the temperature of your home. Always keep your thermostat as close to the outside temperature as possible, and try to adjust it only a few degrees at once. You could also consider a smart thermostat.

It takes between one and three days to have your HVAC system installed or replaced. If you need just an air conditioning unit or a furnace, this may take between half a day and two days. This timeline will be affected by the size of your house, the accessibility of your system, and any new issues your technician runs into.

For a 2,000-square-foot home, you'll want a furnace that's between 50,000 and 80,000 BTUs (British thermal units).

For a 2,000-square-foot home, you'll also want to purchase an air conditioning unit with between 2.5 and 5 tons of capacity. In general, if your home is over 1,000 square feet, central air will be more effective than window air conditioning units.

Your HVAC company may provide financing options via a third-party lender, or you may be able to obtain a loan on your own. It's a good idea to discuss payment options with a financial advisor and your HVAC company to make sure that you're choosing the best option for you.

There are a number of ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and clean or change your air filters on a regular basis.
  • Have regular inspections to take care of issues as they come up.
  • Make sure your doors and windows are well-sealed and keep your attic well-ventilated.
  • Install a smart thermostat. If you don't want to or can't buy one, try keeping your inside temperature as close to the outside temperature as is comfortable.
  • When replacing part of your HVAC system, see if there are Energy Star-certified or similar environmentally friendly options.

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