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10 Best HVAC
in Du Page, IL

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Written By Bradford Cuthrell

Last Updated June 2024

On average, Americans devote 55% of their home energy usage to heating and cooling, according to the U.S. Department of Energy. Energy expenses in Du Page can be steeper than in some other places, which means you're probably trying to save money on your bill.

Use our guide to the top HVAC companies in Du Page to find the best one for you and your home. Our topic contractors can help you reduce your bills while still staying comfortable.

Top 10 Best HVAC Companies in Du Page

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One Hour Heating & Air Conditioning® of Elk Grove

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

Reliable customer support

Informative resources

Clear pricing policy

Prompt service delivery

Free quotes

Services Offered

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

Comfort Zone Service

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9910 190th St Suite K, Mokena, IL 60448 (708) 390-7349 comfortzoneservice.com

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Clear pricing policy

Reliable customer support

Prompt service delivery

Informative resources

Services Offered

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

Comfort Services Heating & Air Conditioning, Inc.

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12461 S Industrial Dr E, Plainfield, IL 60585 (815) 888-3240 comfortserv.com

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Prompt service delivery

Reliable customer support

Services Offered

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

All Temp Heating and Air Conditioning

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370 S Bolingbrook Dr, Bolingbrook, IL 60440 (866) 693-2009 alltemp.com

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Informative resources

Free quotes

Clear pricing policy

Prompt service delivery

Services Offered

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

Update Heating and Cooling Services

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16525 W 159th St, Lockport, IL 60441 (815) 242-3339 updateheating.com

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Free quotes

Reliable customer support

Clear pricing policy

Services Offered

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

One Hour Heating & Air Conditioning® of Naperville

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554 W 5th Ave, Naperville, IL 60563 (630) 503-7545 onehourheatandair.com

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Prompt service delivery

Clear pricing policy

Services Offered

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

Rousculp's Heating and Cooling

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2551 Theodore St Suite B, Crest Hill, IL 60403 (815) 436-4937 rousculps.com

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Services Offered

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

Brian and Sons Heating and Air Conditioning

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113 Main St Suite 202, Oswego, IL 60543 (630) 906-7302 brianandsons.com

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Clear pricing policy

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Reliable customer support

Services Offered

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

Precision Today Plumbing Heating Cooling Electrical (Dykstra Home Services)

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13450 S Cicero Ave, Crestwood, IL 60418 (708) 954-0629 precisiontoday.com

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Clear pricing policy

Reliable customer support

Prompt service delivery

Informative resources

Services Offered

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

King Heating, Cooling & Plumbing

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101 Ontario St, Frankfort, IL 60423 (815) 781-2710 kingheating.com

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Reliable customer support

Informative resources

Clear pricing policy

Services Offered

Filtration
Boiler installation
Ac repair
Boiler repair
Duct cleaning
Emergency services
Inspection
Furnace installation
Furnace repair
Ac installation
Maintenance
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 signs your system needs service:

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

Arrange an inspection if you notice any of these issues. A local technician can assess your system, identify problems, and decide whether you need to fix or replace your HVAC.

Cost of HVAC Installation and Maintenance in Du Page

What you spend on HVAC installation or maintenance is determined by your system type. Common HVAC unit styles include the following:

  • Split or mini-split: If your home's ductwork isn’t suited for a central HVAC system, you likely have a split or mini-split system. Split systems have interior units in each room to control temperature; these indoor units all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system operates similar to a normal split system, but has the benefit of being able to utilize energy from either gas or electric sources.
  • Heat pump: Heat pumps transfer hot and cool air between your home and outside. They don't generate their own heat or AC, so they perform best in moderate climates.
  • Packaged heating and air: Packaged HVAC systems are a good choice for smaller houses. These systems have a single heating and cooling unit, typically located in an attic or basement. They're small, energy-efficient, and easy to maintain.

The amount you spend on HVAC maintenance also varies depending on what kind of work you're having done. HVAC systems are complex and might require different kinds of maintenance. The prices of some common jobs are as follows:

HVAC Unit TypeCost
Split$1,933-$4,928
Hybrid Split$3,917-$7,216
Heat Pump$3,033-$30,903
Packaged Heating and Air$254-$423

Ways to Save Money on HVAC Costs

It’s important to complete repairs or full-system HVAC replacements as needed, though they can be expensive. The good news is that homeowners have ways to minimize progressive deterioration and reduce the frequency of breakdowns.

  • Monitor for potential problems. Monitoring your system for issues — for example, by checking your thermostat and energy bills routinely — helps you catch issues before they get too expensive.
  • Change filters regularly. Switching out or cleaning your air filters every 30–90 days helps air flow smoothly through your HVAC system. You should also try to prevent dirt and debris from building up around the outdoor sections of your system.
  • Keep your system clean. Regularly cleaning grills, indoor evaporator coil, ductwork, and condenser fan blades helps keep your HVAC system running efficiently and reduces the risk of mold. The National Air Duct Cleaners Association advises cleaning your heating and cooling system when it starts to look dirty.
  • Change the position of your blinds seasonally. Opening your blinds in winter allows passive solar heat into your house. Closing your blinds in summer blocks some heat from getting indoors. Both of these measures help lower the work required from your HVAC system.
ServiceCost
Filter Replacement$63-$169
Condensor Cleaning$1,269-$3,807
Thermostat Repair$85-$211
Ductwork Cleaning$406-$1,015

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 fix your system, providing you with effective air conditioning and heating for your home.

Compare Multiple Bids

Request estimates from three or more HVAC providers. Explain your issues and ask if specialists can inspect your system in person. Compare each provider's diagnoses, recommended solutions, estimated cost, timeline, and warranties. Avoid companies that pressure you or demand payment before work.

Check Credentials

Choose an HVAC company with skilled technicians who have proper licensing and experience. HVAC contractors in all states have federal requirements from the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, individuals must pass an exam (the specific exam depends on the kind of equipment they plan to work with). Section 608 certification is required for all technicians who "maintain, service, repair or dispose of equipment that could release refrigerants into the atmosphere." 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. Be sure to check with your municipal government to verify that your contractor meets all of the requirements. You can verify an Illinois business license on the Secretary of State's website. Reviewing feedback on Google Reviews, the Better Business Bureau (BBB), Yelp, and similar sites can assist your decision as well. Choose a provider with great reviews and stories of positive customer experiences.

Understand Work Details

Make sure you know the details of your project before it begins. For HVAC repairs, have your provider detail which parts need replacement and why. Confirm that your technician will clean and test your system after the repair to verify that everything works. When getting a replacement, ask your contractor to explain the new HVAC system energy efficiency, features, estimated installation time, model, and brand. Before work begins, you should understand the process your provider will use to properly size the system for your home and the price you'll pay.

Compare Warranties

Reputable HVAC companies back their services with warranties. Compare warranties from different companies, while remembering that more comprehensive coverage is better. Look for the company that provides the most coverage for a reasonable price.

Get Quote in Writing

Get written estimates before beginning HVAC work. The quote should outline costs for both labor and materials. Read all terms carefully before signing.

Frequently Asked Questions About HVAC in Du Page, IL

Normally, your HVAC system should be inspected twice a year. After that inspection, your technician will tell you what, if any, services are required. You should also have an inspection if you notice any new issues, such as unusual smells, leaks, or strange noises. If your home has ductwork, it should be serviced every few years.

The best times to have your HVAC system inspected are during the spring and fall. Technicians are often less busy during these times, so it will be 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 sees the most use.

You can save energy throughout the year by reducing the amount of work it takes for your HVAC system to maintain the temperature of your home. During all seasons, keep your thermostat as close to the outside temperature as is comfortable, and try to adjust it only a few degrees at once. You could also consider purchasing a smart thermostat.

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

For a 2,000-square-foot home, you should look for around 2.5 to 5 tons of air conditioning capacity. For a house over 1,000 square feet, central air is likely to be more effective than window units for cooling.

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

Normally, HVAC financing is through a third-party lender. If your HVAC company doesn't have financing options, you may consider taking out your own loan. Be sure to talk to your HVAC company and a financial advisor to determine what options are available and appropriate for your situation.

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

  • Make sure your air ducts remain clean, and change or clean your air filters on a regular basis.
  • Schedule regular inspections to take care of problems as they come up.
  • 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 to keep the temperature indoors as close to the outside temperature as you can.
  • When it comes time to replace any part of your HVAC system, see if there are Energy Star-certified or other environmentally friendly options.

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