10 Best HVAC Companies in Lockport, IL

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Last Updated: February 25, 2025

According to the U.S. Department of Energy, approximately 55% of the energy used in American homes is used for heating and cooling. In Lockport, you're probably looking to reduce your energy expenses and save money.

Our guide to the top HVAC companies in Lockport can help you save money by getting your HVAC system installed, repaired or replaced for a fair price by a skilled worker.

Top 10 Best HVAC Companies in Lockport

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Comfort Zone Service

Comfort Zone Service Logo

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

Free quotes

Prompt service delivery

Clear pricing policy

Informative resources

Reliable customer support

Services Offered

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

Comfort Services Heating & Air Conditioning, Inc.

Comfort Services Heating & Air Conditioning, Inc. Logo

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

Prompt service delivery

Reliable customer support

Informative resources

Free quotes

Services Offered

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

Update Heating and Cooling Services

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User Rating

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

Free quotes

Informative resources

Reliable customer support

Clear pricing policy

Services Offered

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

Rousculp's Heating and Cooling

Rousculp's Heating and Cooling Logo

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

Clear pricing policy

Informative resources

Free quotes

Services Offered

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

All Temp Heating and Air Conditioning

All Temp Heating and Air Conditioning Logo

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

Prompt service delivery

Clear pricing policy

Informative resources

Free quotes

Reliable customer support

Services Offered

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

One Hour Heating & Air Conditioning® of Naperville

One Hour Heating & Air Conditioning® of Naperville Logo

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User Rating

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

Free quotes

Prompt service delivery

Reliable customer support

Clear pricing policy

Informative resources

Services Offered

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

Brian and Sons Heating and Air Conditioning

Brian and Sons Heating and Air Conditioning Logo

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

Free quotes

Clear pricing policy

Informative resources

Prompt service delivery

Reliable customer support

Services Offered

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

King Heating, Cooling & Plumbing

King Heating, Cooling & Plumbing Logo

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User Rating

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

Clear pricing policy

Reliable customer support

Informative resources

Free quotes

Services Offered

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

Precision Today Plumbing Heating Cooling Electrical (Dykstra Home Services)

Precision Today Plumbing Heating Cooling Electrical (Dykstra Home Services) Logo

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User Rating

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

Clear pricing policy

Informative resources

Free quotes

Prompt service delivery

Reliable customer support

Services Offered

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

Polar Heating & AC

Polar Heating & AC Logo

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User Rating

13801 SW Hwy, Orland Park, IL 60462 (708) 260-8855 polarheatingandair.com

Reliable customer support

Informative resources

Clear pricing policy

Free quotes

Services Offered

Boiler repair
Furnace installation
Ductless
Furnace repair
Radiant heating
Boiler installation
Ac installation
Emergency services
Maintenance
Inspection
Ac repair
Duct cleaning
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

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

  • Strange noises when the system turns on
  • Poor air circulation or uneven heating/cooling
  • Refrigerant leaks
  • Temperature control issues or thermostat malfunctions
  • Higher than normal energy bills
  • Cracking, corrosion, or rust
  • Frequent breakdowns and need for repairs
  • An HVAC system that's over 15 years old

If you notice any of the above, it's wise to have a local HVAC technician inspect your system. They can identify problems and recommend whether repair or full HVAC replacement is needed.

Cost of HVAC Installation and Maintenance in Lockport

What you spend on HVAC installation or maintenance depends on your system style. Common HVAC unit styles include the following:

  • Split or mini-split: If your home lacks the ductwork for central heating and cooling, you probably have a split or mini-split system instead. Split HVAC systems have internal units in each room to control temperature. These connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions comparably to a regular split system. It gives flexibility by having the option to use 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 generate heat or air conditioning themselves, and are more effective in more moderate climates.
  • Packaged heating and air: Packaged HVAC systems work well in smaller houses. They consist of a single combined air conditioner and heating unit, usually located in an attic or basement. This unit is typically space-saving, cost-effective, and easy to maintain.

HVAC maintenance prices vary based on the services needed. HVAC systems are complex and may need a number of types of maintenance. Prices for 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

Essential HVAC maintenance is important, but can be pricey. Thankfully, homeowners can take steps to reduce wear and tear on their system and lower future maintenance needs.

  • Keep your system clean. Keeping your grills, condenser fan blades, indoor evaporator coil, and ductwork clean helps your HVAC system function effectively and lowers your risk of mold. The National Air Duct Cleaners Association suggests cleaning your HVAC when you notice things starting to get dirty.
  • Change the position of your blinds seasonally. Leaving your blinds open during the colder months allows passive solar heating to warm your home. Closing the blinds during the summer helps prevent the heat from getting inside. Doing both helps decrease the strain on your HVAC.
  • Change filters regularly. Changing or cleaning your air filters every 30–90 days helps air flow efficiently through your HVAC system. You should also try to prevent dirt and debris from building up around the outdoor sections of your system.
  • Monitor for potential problems. Monitoring the efficiency of your HVAC system — for instance by checking your thermostat settings and energy bills — helps you identify and fix problems before they get too expensive.
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 what to look for in an HVAC company is crucial for a successful project. Look for an experienced, licensed contractor that can offer you peace of mind and make sure your system provides reliable heating and air conditioning for your home.

Compare Multiple Bids

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

Check Credentials

It's important to choose an HVAC company that employs technicians with the proper qualifications and expertise. HVAC contractors in all states have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, a contractor must pass an exam (the type of exam depends on what kind of equipment they intend 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 on a state-by-state basis.

Illinois doesn't have state-level contractor licensing requirements. However, there may be local regulations. Be sure to check with your municipal government to verify that your contractor meets all the requirements. You can verify an Illinois business license on the Secretary of State's website. Reviewing feedback on the Better Business Bureau (BBB), Google Reviews, Yelp, and similar sites can help your decision. Choose a company with great reviews and stories of positive customer experiences.

Understand Work Details

Always make sure you know what a company’s process is like. When getting HVAC repairs, ask your provider to specify which parts need replacement and why. Confirm that your technician will clean and test the system at the end of the job to ensure proper operation. When replacing your HVAC system, request that the installation company describe the new energy efficiency, estimated installation time, model, features, and brand. Before work starts, ask how your provider plans to accurately size the unit for your home and how much it will cost.

Compare Warranties

Reliable HVAC companies provide warranties for their work. The broader the coverage, the better, so make sure to compare warranties between companies. Choose the one that gives you the most coverage at a reasonable cost.

Get Quote in Writing

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

Frequently Asked Questions About HVAC in Lockport, IL

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

The best times of the year to have an HVAC inspection are during the spring and fall. Technicians tend to be less busy during these times, which makes it easier to get an appointment. This also ensures that your system is ready for the summer and winter, which is when it normally sees the most use.

You can save energy throughout the year by making it easier for your HVAC system to maintain your home's temperature. Always keep your thermostat as close to the outside temperature as you can, and avoid making drastic changes — adjust it only a few degrees at once. You may also consider getting a smart thermostat.

It takes roughly one to three days to have your HVAC system installed or replaced. If you need just a furnace or a single air conditioning unit, this might take between half a day and two days. This timeline can be determined by the size of your home, the accessibility of your system, and any 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 an air conditioning unit with around 2.5 to 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.

Normally, HVAC financing is offered through a third-party lender. If your HVAC company doesn't offer financing, you could consider taking out a loan on your own. Be sure to speak with a financial advisor and your HVAC company to learn what options are available and appropriate for your situation.

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