10 Best HVAC Companies in Harlem, IL

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Last Updated: February 25, 2025

On average, American homeowners devote 55% of their home energy usage to heating and cooling, according to the U.S. Department of Energy. With Harlem's higher cost of living, you're likely eager to reduce your energy bills.

Our guide to the top HVAC companies in Harlem can help you get your system into its best shape ever, allowing you to save money while staying comfortable.

Top 10 Best HVAC Companies in Harlem

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JNL Climate Control, Inc.

JNL Climate Control, Inc. Logo

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215 Prairie Lake Rd, East Dundee, IL 60118 (847) 358-2251 jnlclimatecontrol.com

Free quotes

Informative resources

Clear pricing policy

Prompt service delivery

Reliable customer support

Services Offered

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

One Hour Heating & Air Conditioning® of Elk Grove

One Hour Heating & Air Conditioning® of Elk Grove Logo

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User Rating

3540 Swenson Ave, St. Charles, IL 60174 (847) 744-9447 onehourheatandair.com

Prompt service delivery

Free quotes

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

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

Rosenthal Heating & Air Conditioning

Rosenthal Heating & Air Conditioning Logo

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User Rating

1000 Lotus Dr Unit 8, Silver Lake, WI 53170 (262) 534-7330 4rosenthal.com

Free quotes

Reliable customer support

Prompt service delivery

Clear pricing policy

Informative resources

Services Offered

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

Precision Today Plumbing Heating Cooling Electrical (Miller's Area Heating)

Precision Today Plumbing Heating Cooling Electrical (Miller's Area Heating) Logo

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User Rating

112 Center St, Grayslake, IL 60030 (847) 752-4746 precisiontoday.com

Prompt service delivery

Informative resources

Reliable customer support

Clear pricing policy

Free quotes

Services Offered

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

Air Blue Heating and Cooling

Air Blue Heating and Cooling Logo

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User Rating

1154 N Main St Unit D, Algonquin, IL 60102 (847) 250-1703 airblueinc.com

Informative resources

Clear pricing policy

Reliable customer support

Free quotes

Prompt service delivery

Services Offered

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

American Family Heating & Air Conditioning

American Family Heating & Air Conditioning Logo

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User Rating

4079 Conifer Dr, Elgin, IL 60124 (847) 583-8731 americanfamilyhvac.com

Free quotes

Clear pricing policy

Reliable customer support

Informative resources

Services Offered

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

Lake County Mechanical, Inc

Lake County Mechanical, Inc Logo

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328 North Ave, Antioch, IL 60002 (847) 989-4649 lakecountymechanical.com

Reliable customer support

Clear pricing policy

Services Offered

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

Air Kings Heating And Cooling

Air Kings Heating And Cooling Logo

Our Rating

User Rating

18880 Oak Ave, Mundelein, IL 60060 (847) 621-2263 callairkings.com

Clear pricing policy

Prompt service delivery

Free quotes

Reliable customer support

Informative resources

Services Offered

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

G & R Heating and Air

G & R Heating and Air Logo

Our Rating

User Rating

24 Center Dr Unit #9, Gilberts, IL 60136 (224) 419-5324 grheatingcooling.com

Clear pricing policy

Informative resources

Reliable customer support

Free quotes

Services Offered

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

Wohlers Heating & AC

Wohlers Heating & AC Logo

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User Rating

351 Progress Dr, Cottage Grove, WI 53527 (608) 839-1604 wohlersheating.com

Free quote

Clear pricing policy

Informative resources

Reliable customer support

Services Offered

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

An HVAC system that's not working properly or old likely needs professional attention for maintenance or replacement. Watch for these signals that your system needs service:

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

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

Cost of HVAC Installation and Maintenance in Harlem

HVAC installation or maintenance costs vary depending on your system. Common HVAC unit varieties include the following:

  • Split or mini-split: If your home lacks the ductwork for central air or heating, you likely have a split or mini-split system instead. Split HVAC systems have indoor units in each room to control temperature. These connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC unit operates similarly to a regular split system. It gives flexibility by having the option to draw on either electricity or gas for energy.
  • Heat pump: Heat pumps work by transferring hot and cold air between your home and the outdoors. These systems don't create heat or air conditioning themselves, and are better for more moderate climates.
  • Packaged heating and air: Packaged HVAC systems are a smart choice for smaller houses. These systems have a single combined AC and heating, normally located in a basement or attic. They're compact, cost-effective, and easy to maintain.

HVAC maintenance costs differ depending on what services are needed. HVAC systems are complicated and might require different kinds of maintenance. Costs for common services are as follows:

HVAC Unit TypeCost
Split$1,906-$4,860
Hybrid Split$3,863-$7,117
Heat Pump$2,991-$30,478
Packaged Heating and Air$250-$417

Ways to Save Money on HVAC Costs

HVAC upkeep is important, but can be expensive. Luckily, homeowners can take steps to reduce wear and tear on their system and lower future maintenance needs.

  • Monitor for potential problems. Keeping an eye out for problems, for instance by consistently checking your thermostat and energy bills, lets you resolve them before they get too expensive.
  • Change filters regularly. Cleaning or replacing your air filters every 30–90 days helps air flow efficiently through your system. Also try to keep debris away from the external sections of your HVAC system as much as possible.
  • Change the position of your blinds seasonally. During winter, leaving your blinds open allows your home to benefit from passive solar heating. In the summer, keeping your blinds shut helps to block out heat. Doing both reduces the amount of work your HVAC system needs to do.
  • Keep your system clean. Cleaning your condenser fan blades, grills, ductwork, and indoor evaporator coil regularly helps keep your HVAC system working efficiently and lowers the risk of mold growth. The National Air Duct Cleaners Association recommends cleaning your HVAC system when it begins to look dirty.
ServiceCost
Filter Replacement$63-$167
Condensor Cleaning$1,251-$3,754
Thermostat Repair$83-$209
Ductwork Cleaning$400-$1,001

How To Choose a Local HVAC Company

Knowing the indicators of a reliable HVAC company is key for a smooth installation or repair. Established providers with certified technicians can offer assurance your HVAC system will deliver consistent heating and cooling year-round.

Compare Multiple Bids

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

Check Credentials

When looking for an HVAC company, choose one with technicians that have the proper training, licenses, and experience. In all states, HVAC contractors need to obtain a Section 608 Technician Certification from the Environmental Protection Agency (EPA). This certification is required for all technicians who "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 the type of equipment they intend to work with) to be certified by the EPA. All other licensing requirements are handled at the state level.

There are no state-level licensing requirements for contractors in Illinois. However, there may be local regulations, so make sure to check with your municipal government to confirm that your contractor meets all the requirements. You can also verify an Illinois business license on the Secretary of State's website. Always check a provider's reviews and complaints with organizations such as the Better Business Bureau (BBB), Google Reviews, and Yelp. Look for a a provider with positive reviews and a history of good customer service.

Understand Work Details

Always make sure you know the details of a planned project. For HVAC repairs, your provider should specify which parts require replacement and why. Confirm that your technician will clean and test your system after repairs are finished to verify that it’s working properly. When replacing your HVAC system, request that the installation company describe the new model, brand, energy efficiency, estimated installation time, and features. Before work starts, ask about the process your provider will use to properly size the new system for your home and how much it will cost.

Compare Warranties

A trustworthy HVAC company will stand behind its repair services and installations with a warranty. The longer and more comprehensive the coverage terms, the better. Carefully compare warranty terms between contractors and choose the provider that offers the most protection at a reasonable price.

Get Quote in Writing

Always get HVAC bids in writing before work begins. A thorough quote will cover costs for both labor and materials. Make sure that you understand all terms before signing the contract.

Frequently Asked Questions About HVAC in Harlem, IL

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

The best times to have your HVAC system inspected are the spring and fall. Technicians are often less busy during these times, so it will be easier to get an appointment. This also helps get your system ready for the summer and winter, when it typically sees the most use.

You can save energy throughout the year by reducing the amount of power your HVAC system uses to maintain your home's temperature. Always keep your thermostat as close to the outside temperature as possible, and try to adjust it only a few degrees at once. You might also consider a smart thermostat.

Generally, HVAC installation or replacement takes one to three days for the entire system. Installing or replacing a furnace or air conditioning unit takes anywhere from about half a day up to two days. The exact amount of time will depend on things like the size of your home, how easily accessible different parts of the system are, and whether your technician discovers any problems.

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. Usually, 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 choose to obtain your own loan. It's smart to discuss payment options with your HVAC company and a financial advisor to make sure that you find the best option for you.

There are several ways you can make your HVAC system more energy-efficient:

  • Keep your air ducts clean and change or clean your air filters regularly.
  • Have regular inspections to take care of problems as they arise.
  • Keep your attic well-ventilated and make sure all doors and windows are well-sealed.
  • Install a smart thermostat. If you aren't able to purchase one, try keeping the temperature indoors as close to the outside temperature as you can.
  • When you need to replace part of your HVAC system, explore Energy Star-certified or similar environmentally friendly options.

Other Harlem, IL Home Services

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