Emergency HVAC O'Fallon

Top Emergency Furnace Repair in O'Fallon

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  • Meyer Heating and Air
    4.9
    11134 Lindbergh Business Ct, St. Louis, 63123, US

    Meyer Heating and Air is a St. Louis-based HVAC company that provides expert services for residential and commercial properties. With years of experience in the industry, our team works on all makes and models of heating and cooling systems, offering installation, repair, maintenance, and general service. We help our customers in O'Fallon and surrounding areas, including Fenton, Arnold, Ballwin, St. Charles, Chesterfield, Sappington, and St. Louis, to ensure their HVAC systems run smoothly and efficiently. Our 24/7 emergency service means we're always available to help, and our team is dedicated to providing exceptional customer service and ensuring customer satisfaction.

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  • Martin-Jetco Heating and Air Conditioning
    4.9
    1327 West Lark Industrial Dr, Fenton, 63026, US

    Since 1964, Martin-Jetco Heating and Air Conditioning has been focused on delivering an amazing customer experience and the best heating and cooling services in St. Louis. Family-owned and operated, we've become the go-to company for all residential and commercial heating and cooling needs in St. Louis. All of our licensed and NATE-certified technicians are committed to providing an unrivaled customer experience. Unlike other companies who are in it to just make a buck, we won't sell you any product or service you don't truly need. When you work with our St. Louis HVAC company, we put your best interests first. As certified dealers of many of the industry’s leading brands, including York, Goodman, Daikin, Carrier, and Trane, you can rest easy knowing that we carry systems designed to last.

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  • Aire Serv of St. Louis
    5
    Not Found, St. Louis, 63101, US

    Aire Serv of St. Louis is a locally owned and operated HVAC company serving the St. Louis, MO area. We are dedicated to providing expert service, upfront pricing, and 24/7 customer service. Our team of experienced technicians is committed to delivering reliable and efficient HVAC solutions for both residential and commercial customers. We offer a wide range of services, including AC repair, heating repair, maintenance, and installation. At Aire Serv, we believe in the Neighborly Done Right Promise™, ensuring that our customers receive the highest quality service and support.

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  • Emerson
    3.8
    St. Louis, US

    Emerson is a global technology, software and engineering powerhouse driving innovation that makes the world healthier, safer, smarter and more sustainable.

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  • Welsch Heating & Cooling
    4.5
    St. Louis, US

    FAMILY AND LOCALLY OWNED SINCE 1895. We strive to be the most TRUSTED Heating and Air Conditioning Company in the St. Louis/St. Charles area with over 127 years of experience. 24-hour service, 7 days a week. Repair, optimize, or check your system. Any Brand, Any System. We service all brands! Request Service Request Estimate. Specials on Heating and Cooling Complete Systems. Save up to $1,600 back! Specials. Get it Fixed By Expert Technicians. Call anytime for home or business! Services. Living Up to Our Commitment. See what made us a national winner! Reviews. What We Offer.

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  • NOOTER St. Louis
    4.6
    1500 South 2nd St., St. Louis, 63104, US

    NOOTER is a fully integrated turnkey construction, multi-craft, construction engineering and maintenance contractor, in the industrial and commercial sectors. With vast experience, a highly-skilled multi-craft labor force and unlimited geographical reach, we respond in real-time to vital projects or emergency situations, when and wherever needed. Our goals are your goals: to achieve and maintain outperforming production environments for the life of your facility.

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  • St. Louis HVAC
    1
    St. Louis, US

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  • Harster Heating & Air Conditioning
    4.5
    St. Louis, US

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  • Vitt Heating & Cooling
    4.7
    4719 Morganford Rd, St Louis, 63116, US

    Vitt Heating and Cooling has very deep ties to St Louis City. It was in St Louis City where the business began back in 1954. Over the years, our company has witnessed the area expand in almost every direction. But unlike a lot of other companies who have moved out of the city limits, we still call St Louis City home. Vitt Heating and Cooling enjoys working on the historical homes of St Louis which is why our certified professional technicians continue to train on the most up to date boiler equipment and maintenance in the industry. If you are in need of service or installation for your HVAC system or air conditioner, give Vitt Heating and Cooling at call at (314) 351-5580.

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  • Classic Aire Care
    4.8
    St. Louis, US

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Frequently Asked Questions About Emergency HVAC Services

Find answers to common questions about emergency HVAC repair and 24/7 heating and cooling services.

What is a heat exchanger, and why is it important?

A heat exchanger transfers heat from the burned fuel to the air that circulates throughout your home. It separates the combustion process from the circulating air, ensuring that only heated air is distributed. Regular inspection of your heat exchanger is vital for preventing CO leaks. Annual furnace maintenance is crucial for checking the condition of the heat exchanger and ensuring safe operation.

What should I do while waiting for an emergency HVAC technician?

While waiting for an emergency HVAC technician:
  • Safety First: If you suspect a gas leak or any electrical hazard, evacuate your home or building immediately and contact your utility company or emergency services.
  • Turn Off Your System: Turn off your HVAC system at the thermostat to prevent further damage.
  • Document the Issue: If possible, take photos or videos of the problem to show the technician.
  • Gather Information: Have your HVAC system's model and serial number readily available, along with any warranty information.
  • Clear Access: Ensure clear access to your HVAC system for the technician.
  • Prepare Questions: Write down any questions you want to ask the technician.

What is carbon monoxide, and how can it affect my HVAC system?

Carbon monoxide (CO) is an odorless, colorless, and tasteless gas that is dangerous when inhaled. Malfunctioning fuel-burning appliances, like furnaces or boilers, can produce carbon monoxide. A cracked heat exchanger in a furnace is a common source of carbon monoxide leaks in homes. Regular HVAC maintenance, including inspection of the heat exchanger, is important for preventing carbon monoxide leaks. CO detectors save lives.

What's the difference between a single-stage and two-stage furnace?

Single-stage furnaces have one level of heat output. They run at full capacity creating a cycle of on-and-off operation that can lead to temperature fluctuations. Two-stage furnaces have two levels of heat output: a lower setting for milder weather and a higher setting for colder conditions. This provides more consistent temperatures, better efficiency, and quieter operation.

What is a heat exchanger, and why is it important?

A heat exchanger transfers heat from the burned fuel to the air that circulates throughout your home. It prevents dangerous gases from mixing with the heated air, ensuring that exhaust gases are vented safely outside while clean, heated air is distributed throughout your home. A cracked heat exchanger is a serious safety hazard, as it can allow carbon monoxide to leak into your home. Consult with an HVAC professional if you suspect a problem with your heat exchanger.

What should I do while waiting for an emergency HVAC technician?

While waiting for an emergency HVAC technician:
  • Safety First: If you suspect a gas leak or any electrical hazard, evacuate your home or building immediately and contact your utility company or emergency services.
  • Turn Off Your System: Turn off your HVAC system at the thermostat to prevent further damage.
  • Document the Issue: If possible, take photos or videos of the problem to show the technician.
  • Gather Information: Have your HVAC system's model and serial number readily available, along with any warranty information.
  • Clear Access: Ensure clear access to your HVAC system for the technician.
  • Prepare Questions: Write down any questions you want to ask the technician.

What is carbon monoxide, and how can it affect my HVAC system?

Carbon monoxide (CO) is an odorless, colorless, and tasteless gas that is highly toxic when inhaled. Furnaces and other fuel-burning equipment produce carbon monoxide if they malfunction. CO can leak into your home if the heat exchanger in a furnace is cracked. Regular HVAC maintenance, including inspection of the heat exchanger, is important for preventing carbon monoxide leaks. CO detectors save lives.

What's the difference between a single-stage and two-stage furnace?

Single-stage furnaces have one level of heat output. They run at full capacity until the set temperature is reached, then cycle off until the temperature drops again. Two-stage furnaces have two levels of heat output: a lower setting for milder weather and a higher setting for colder conditions. Two-stage systems improve overall comfort.