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2024

Last updated:

Best HVAC & Furnace Repair Services in O'Fallon

Our Recommended Top 14

We did the research for you!

  • Licensing
  • User Reviews
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Our goal is to connect people with the best local professionals. We scored O'Fallon HVAC & Furnace Repair Services on more than 25 variables across five categories, and analyzed the results to give you a hand-picked list of the best.

34Reviewed

26Curated

14Top Picks

Learn about our selection process.

Providers

featured provider = Featured Provider

827 W Terra Ln, O Fallon, MO 63366

Expertise.com Rating

Review Sources

Google
4.7 (694)
Yelp
2.5 (16)

Why choose this provider?

AAA Home Services has been providing HVAC services to clients in the St. Charles area for more than 50 years. The company handles all types of HVAC servicing and repairs, including furnace and heater installation and repair, air conditioning installation and repair, thermostat installation, and duct cleaning. It also specializes in Nest thermostat products. Other services provided by AAA Home Services include plumbing and electrical systems maintenance and repair, as well as appliance installation.

  • Air Conditioning
  • Furnaces
  • Tune Up

2123 N 3rd St, Saint Charles, MO 63301

Expertise.com Rating

Review Sources

Google
4.9 (2481)
Facebook
5.0 (18)
Angi
4.8 (9)

Why choose this provider?

Since 1956, Automatic Climate Control has offered residential and commercial heating and cooling services to the O' Fallon area. The NATE-certified technicians provide preventive maintenance, repair, replacement, new installation, and sheet metal fabrication for HVAC systems. The technicians also offer indoor air purification services and installation. Automatic Climate Control is a Carrier authorized dealer but services all brands of furnaces and AC units. The company provides emergency services, service agreements, and extended warranties on new units.

  • Air Conditioning
  • Furnaces
  • Tune Up

774 Merus Court, Fenton, MO 63026

Expertise.com Rating

Review Sources

Angi
5.0 (44)
Facebook
5.0 (13)
Yelp
4.5 (2)

Why choose this provider?

Metro Heating & Cooling is a local family-owned and -operated business offering commercial and residential HVAC and furnace repair services around O'Fallon. Its professionals repair air conditioners with problems such as refrigerant leaks, unusual noises, frozen coils, and foul odors, and they respond to emergency HVAC repair calls and work on installations and replacements. The company provides HVAC maintenance and cleaning services and deals with drain pan replacement. Other services include indoor air quality improvement.

  • Air Conditioning
  • Duct Work
  • 24/7

3582 Adie Road, Saint Ann, MO 63074

Expertise.com Rating

Review Sources

Google
4.9 (108)
HomeAdvisor
4.8 (52)
Facebook
5.0 (28)

Why choose this provider?

Arch Air Services Heating & Air Conditioning is available to residential and commercial clients seeking its air conditioner repair services near O'Fallon. This company assists with a full range of A/C and heating-related needs by fixing leaks, problems with air pressure and temperature, and a host of other mechanical failures. It's particularly experienced with diagnostic and maintenance work for heating systems, furnaces specifically, and also cleans heat exchangers, fixes thermostats, and services heat pumps. Air filter replacement services are available.

  • Air Conditioning
  • Furnaces
  • Tune Up

2949 Ashby Rd, Saint Louis, MO 63114

Expertise.com Rating

Review Sources

Google
3.6 (10)
Angi
5.0 (7)
Facebook
5.0 (3)

Why choose this provider?

Sewell Heating & Cooling provides air conditioning repair services near O'Fallon. Active since 1945, this company and its technicians possess robust experience with air conditioning units, furnaces, and humidifiers, and can fix virtually any problems affecting any of these kinds of appliances. Sewell Heating & Cooling also offers a wide breadth of availability, as it services all brands and models. Installation services are available for cooling and heating appliances as well, along with various appliances for indoor air quality.

  • Air Conditioning
  • Furnaces
  • Tune Up

St Louis, MO

Expertise.com Rating

Review Sources

Yelp
5.0 (3)

Why choose this provider?

Best Air Heating and Cooling is an HVAC company that performs air conditioner installation services near O'Fallon. It has over 25 years of experience serving the needs of home owners by installing A/C units and furnaces and servicing these appliances by conducting necessary repairs and providing needed maintenance for preventative care. Its repair services are available on an emergency basis, and it also does complete system replacement in situations where appliances can't be salvaged.

  • Air Conditioning
  • Furnaces
  • 24/7

3901 Shirley Ave, St. Louis, MO 63121

Expertise.com Rating

Review Sources

Google
5.0 (41)
Facebook
5.0 (18)
Yelp
4.0 (4)

Why choose this provider?

Xcell Williams Heating & Cooling offers air conditioner installation services near O'Fallon. Serving both residential and commercial clients, this company installs a variety of products for clients who need A/C units or furnaces. Not only does it handle installation, but Xcell Williams Heating & Cooling also offers ongoing maintenance services and does complete repairs for broken or faulty appliances. Other service areas include air cleaners and indoor air quality, boilers, and gas leaks.

  • Air Conditioning
  • Furnaces
  • Boilers

3727 North Saint Peters Parkway, St. Peters, MO 63376

Expertise.com Rating

Why choose this provider?

Cisco Heating & Air Conditioning is an HVAC company near O'Fallon. It has provided heating and cooling services for residential and commercial clients since 1979. The company repairs and installs furnaces, boilers, heat pumps, thermostats, and air conditioning units. For commercial clients, the company can install and fix rooftop units. It provides routine maintenance to plug gas leaks and prevent heating disruptions. Additionally, it provides services to optimize air quality. Cisco cleans, repairs, and reroutes duct systems and replaces filters.

  • Air Conditioning
  • Duct Work
  • 24/7

1642 Manufacturers Drive, Fenton, MO 63026

Expertise.com Rating

Why choose this provider?

Vogel Heating & Cooling is an HVAC company that has served residents and businesses in the O'Fallon area since 1946. Its licensed, bonded, and insured technicians repair and maintain all makes and models of air conditioners, furnaces, heat pumps, and boilers as well as offer replacements when needed. The company can also set up alternative heating solutions, such as geothermal systems. Additionally, Vogel Heating & Cooling offers after-hours emergency services, financing options, and a free consultation on replacement jobs.

  • Air Conditioning
  • Furnaces
  • Tune Up

7624 South Broadway, St. Louis, MO 63111

Expertise.com Rating

Why choose this provider?

Degenhardt Heating & Cooling Inc. has been offering heating and cooling systems to the O'Fallon metro area for over three decades. Serving both residential and commercial customers, Degenhardt provides evaporator coil, condensing unit, and furnace installation, maintenance, and replacement. The family-owned and operated business also specializes in ductwork fabrication and replacement. Degenhardt's team of fully licensed and insured technicians trains in the latest heating and cooling technologies. Residential and commercial rehab services are also available.

  • Air Conditioning
  • Furnaces
  • Duct Work

6388 Graham Road, St. Louis, MO 63134

Expertise.com Rating

Review Sources

Google
5.0 (69)
Yelp
2.0 (1)

Why choose this provider?

Bermuda Air Conditioning Co. Inc. is an HVAC company near O'Fallon. It has provided heating and cooling services for homes and businesses for over 50 years. It repairs, replaces, and installs HVAC machines, including furnaces, heat pumps, boilers, water heaters, and air conditioning units. It offers periodic maintenance to prevent gas leaks and heating breakdowns. The company cleans and repairs duct systems, humidifiers, ventilators, and UV lights to improve airflow and energy efficiency. It can also replace filters where needed.

  • Air Conditioning
  • Furnaces
  • Tune Up

201 West Main Street, Collinsville, IL 62234

Expertise.com Rating

Review Sources

Google
4.8 (273)
Facebook
4.8 (48)
Angi
4.5 (25)

Why choose this provider?

Viviano Heating & Air Conditioning can perform air conditioner repair services near O'Fallon for home and business owners. This company has been fixing A/C units, as well as heating appliances such as furnaces and heat pumps, for over 30 years, and it continues to service clients experiencing a multitude of issues. Aside from full-blown repairs, Viviano Heating & Air Conditioning also offers maintenance services to clients that need annual inspections through an available program. Appliances and accessory devices can be purchased directly through this service provider.

  • Air Conditioning
  • Furnaces
  • Boilers

7020 Ingham Lane, Godfrey, IL 62035

Expertise.com Rating

Why choose this provider?

King Air Conditioning & Heating is a full-service company offering emergency air conditioning and heating services for homeowners and businesses around the O'Fallon area. For over 35 years, its technicians have designed and installed HVAC systems that are energy-efficient and meet the customers needs. It has the tools and equipment to repair any issues with heating and cooling units and seal leaky air ducts. King Air Conditioning & Heating provides various indoor air quality products, including air purifiers, humidifiers, and cleaners.

  • Air Conditioning
  • Tune Up
  • Duct Work

420 South 1st Street, Pacific, MO 63069

Expertise.com Rating

Review Sources

Google
4.4 (39)
HomeAdvisor
4.8 (21)
Angi
4.8 (12)

Why choose this provider?

West County Heating & Cooling has been providing heating and air conditioning services to the O'Fallon metro area since 1990. It carries many major brands, including American Standard, GeoComfort, and Hardy. Services it offers include repair, maintenance, and installation of furnaces, boilers, heat pumps, solar and electric heating systems, and numerous types of air conditioners. West County Heating & Cooling offers a bi-annual HVAC system maintenance program that includes many benefits and discounts.

  • Air Conditioning
  • Carrier
  • Trane

FAQs

  • How do residential HVAC systems work?

    Central HVAC systems use ductwork and mechanical blowers to deliver heating and cooling across a home’s primary living areas. Refrigerant-based systems, such as heat pumps and air conditioners, use pressurized gas that raises or lowers the temperature by absorbing heat. Their principal components include the evaporator coil, compressor, condenser coil, and blower. Furnaces generate heat by burning fuel, such as oil, propane, or natural gas. Energy from the burners is captured by a heat exchanger, and a flue exhausts combustion byproducts outdoors. Nowadays, homeowners can choose between dual-fuel systems, ductless heat pumps, and variable-speed models that provide enhanced comfort and efficiency.

  • How often do I need to schedule HVAC service for my system?

    Central heating and cooling systems should be serviced annually in the spring and fall. Air conditioners should be inspected every spring; furnaces should be tuned up in the fall, and heat pumps need to be serviced twice per year. Scheduling maintenance early in the season can help homeowners prevent breakdowns and avoid the rush.

  • Why do HVAC systems need regular maintenance?

    Preventive maintenance for HVAC equipment is just as important as an oil change for a car. Regular service visits increase the system’s efficiency, prevent unnecessary wear and tear, and detect problems before they worsen. For optimal results, technicians inspect all electrical and mechanical components. This type of maintenance extends the system’s lifespan, prevents safety hazards, and helps homeowners enjoy long- and short-term savings.

  • What’s the best way to care for an HVAC system in a multifamily investment property?

    HVAC maintenance helps landlords retain quality tenants and control their ownership costs. For best results, centralized and decentralized heating and cooling systems should be serviced in the spring and fall. Technicians can lubricate moving parts, measure refrigerant levels, clean the coils, and check the belts and bearings. Landlords should also consider supplying new air filters to tenants to prevent unnecessary wear and tear, and unit breakdowns related to restricted airflow.

  • What are the signs of a broken HVAC system?

    Heating and cooling systems contain hundreds of parts, which means that almost anything can go wrong. Some warning signs are obvious. For example, if the air conditioner is blowing hot air or if the furnace won’t shut off, it’s time to call a professional. Other malfunctions can cause subtle decreases in comfort and efficiency. Regardless of the problem, responding quickly is generally the best way to avoid more significant repairs and expenses. Homeowners can protect themselves by recognizing the following warning signs:

    • Unusually high energy bills
    • Excessive mechanical noise
    • Starting difficulties
    • Sudden shutdowns
    • Continuous airflow
    • Temperature imbalances
    • High humidity
    • Unpleasant odors
    • Ice buildup on the coils
    • Leaks or water damage

  • Does a home warranty cover HVAC repairs?

    Yes, many home warranty companies pay for HVAC repairs. This type of coverage may be standard or included as an optional add-on. In most cases, homeowners are responsible for an initial service fee. If the unit cannot be repaired, the company may pay for a replacement.

  • Will replacing the HVAC system increase my home’s value?

    While most homeowners only recoup 35% to 50% of their installation costs, a new HVAC system can be a major selling point that attracts potential buyers and results in a faster sale. The benefits depend on the local climate, the type of market, and the condition of the existing system. Aging or poorly maintained equipment may encourage buyers to submit lower offers, especially if problems are revealed during an inspection.