10 Best HVAC Companies in LaSalle, IL

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Last Updated: February 25, 2025

On average, 55% of energy use in American homes goes toward heating and cooling, according to the Department of Energy. It's important that the temperature control systems in your LaSalle home are working properly, so that you don't spend more than necessary.

We've put together this guide to the top HVAC companies in LaSalle to help you choose the right person for your job and get your system into its best shape ever.

Top 10 Best HVAC Companies in LaSalle

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One Hour Heating & Air Conditioning® of Elk Grove

One Hour Heating & Air Conditioning® of Elk Grove Logo

Our Rating

User Rating

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

Prompt service delivery

Clear pricing policy

Free quotes

Informative resources

Reliable customer support

Services Offered

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

Free quotes

Informative resources

Services Offered

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

Rousculp's Heating and Cooling

Rousculp's Heating and Cooling Logo

Our Rating

User Rating

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

Free quotes

Clear pricing policy

Informative resources

Services Offered

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

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

Clear pricing policy

Prompt service delivery

Informative resources

Reliable customer support

Services Offered

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

Update Heating and Cooling Services

Update Heating and Cooling Services Logo

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User Rating

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

Reliable customer support

Informative resources

Free quotes

Clear pricing policy

Services Offered

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

All Temp Heating and Air Conditioning

All Temp Heating and Air Conditioning Logo

Our Rating

User Rating

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

Clear pricing policy

Free quotes

Informative resources

Reliable customer support

Prompt service delivery

Services Offered

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

American Family Heating & Air Conditioning

American Family Heating & Air Conditioning Logo

Our Rating

User Rating

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

Clear pricing policy

Informative resources

Reliable customer support

Free quotes

Services Offered

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

Triple Service Inc.

Triple Service Inc. Logo

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User Rating

801 Monroe St, Mendota, IL 61342 (815) 857-8457 tripleserviceinc.com

Informative resources

Reliable customer support

Free quotes

Clear pricing policy

Services Offered

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

Brian and Sons Heating and Air Conditioning

Brian and Sons Heating and Air Conditioning Logo

Our Rating

User Rating

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

Informative resources

Clear pricing policy

Prompt service delivery

Reliable customer support

Free quotes

Services Offered

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

Custom Seasons Heating & Cooling

Custom Seasons Heating & Cooling Logo

Our Rating

User Rating

159th Street, S Cedar Rd and, Homer Glen, IL 60491 (708) 203-4895 customseasons.com

Clear pricing policy

Informative resources

Free quotes

Reliable customer support

Services Offered

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

A faulty or aging HVAC system probably needs attention from a professional who can make fixes or install a new unit. Look out for these common signs that your HVAC needs service:

  • Frequent breakdowns and need for repairs
  • Rust, cracking, or corrosion
  • Refrigerant leaks
  • Higher than normal energy bills
  • Thermostat malfunctions or temperature control issues
  • Odd noises when turning on
  • Uneven heating/cooling or poor air circulation
  • 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 the better solution.

Cost of HVAC Installation and Maintenance in LaSalle

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

  • Split or mini-split: Homes without ductwork for centralized climate control frequently have split or mini-split HVAC systems. These systems consist of indoor units in each room to regulate temperature, which all connect to an outdoor unit.
  • Hybrid split: A hybrid split HVAC system functions much like a standard split system, but is able to utilize either electricity or gas as energy sources.
  • Heat pump: Heat pumps circulate warm and cold 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 practical choice for smaller houses. These systems have a single heating and cooling unit, typically located in a basement or attic. They're compact, energy-efficient, and easy to maintain.

The price of HVAC maintenance also varies depending on the kind of work being done. HVAC systems are complicated and can require different kinds of maintenance. The prices of some common jobs are as follows:

HVAC Unit TypeCost
Split$1,845-$4,703
Hybrid Split$3,738-$6,886
Heat Pump$2,894-$29,491
Packaged Heating and Air$242-$404

Ways to Save Money on HVAC Costs

It's important to take care of HVAC repairs and replacements in a timely manner, but it can also be expensive. Luckily, there are steps you can take to slow the wear and tear on your system.

  • Change the position of your blinds seasonally. Leaving your blinds open during the colder months helps warm your home with passive solar heating. Closing the blinds in warmer seasons helps prevent the same heat from getting inside. Doing both helps reduce the demand on your HVAC system.
  • Change filters regularly. Changing or cleaning your air filters every 30–90 days helps air flow smoothly through your HVAC system. We also recommend regularly clearing dirt and debris away from the outside areas 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 find and solve issues before they get out of hand.
  • Keep your system clean. Regularly cleaning grills, condenser fan blades, indoor evaporator coil, and ductwork helps your HVAC system run efficiently and lowers your risk of mold. The National Air Duct Cleaners Association advises cleaning your HVAC system when it starts to look dirty.
ServiceCost
Filter Replacement$61-$161
Condensor Cleaning$1,211-$3,633
Thermostat Repair$81-$202
Ductwork Cleaning$388-$969

How To Choose a Local HVAC Company

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

Compare Multiple Bids

Contact at least three HVAC companies for quotes. Explain the issues and have technicians visit to inspect your system if possible. Compare the contractors' explanations, solutions, estimated costs, warranties, and timeframes. Avoid contractors that pressure you or demand payment upfront.

Check Credentials

It's important to choose an HVAC company that employs technicians with the proper qualifications and expertise. In all states, HVAC contractors have federal requirements set by the Environmental Protection Agency (EPA). To obtain the EPA Section 608 Technician Certification, an individual 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 also verify an Illinois business license on the Secretary of State's website. Checking reviews on Yelp, Google Reviews, the Better Business Bureau (BBB), and similar sites can help your decision as well. Choose a provider with stellar reviews and reports of positive experiences from customers.

Understand Work Details

Always make sure you understand what a company’s process is like. When HVAC repairs are needed, ask your provider to specify which parts require replacement and why. Confirm that your technician will clean and test the system after finishing the work to verify proper operation. When getting a replacement, ask the contractor to explain the new HVAC system model, energy efficiency, estimated installation time, features, and brand. Before starting the project, 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

Good HVAC companies offer warranties on service and installations. The more complete the coverage, the better. Compare warranty details between providers and pick the one that offers the best protection for a fair price.

Get Quote in Writing

Always get HVAC estimates in writing before work begins. A thorough quote will cover costs for both labor and materials. Confirm that you agree to all terms before signing the contract.

Frequently Asked Questions About HVAC in LaSalle, IL

Normally, your HVAC system should be inspected twice a year. After an 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 strange noises, leaks, or unusual smells. If your home has ductwork, it should be serviced every few years.

The best times of the year to have your HVAC system inspected are the spring and fall. Technicians are generally 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, which is when it normally gets 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. During all seasons, keep your thermostat as close to the outside temperature as possible, and try to adjust it only a few degrees at a time. You may also consider a smart thermostat.

It takes around 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 anywhere from a few hours up to two days. This timeline can be determined by the size of your house, the accessibility of your system, and any issues your technician uncovers.

For a 2,000-square-foot home, you need around 2.5 to 5 tons of air conditioning capacity. For homes 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 should 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 offer financing, you could consider taking out a loan on your own. Be sure to talk to a financial advisor and your HVAC company to find out what options are available to you and appropriate for your situation.

Other LaSalle, IL Home Services

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