HVAC Companies Missouri

Find top HVAC Contractor in Missouri

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  • Unico
    4.3
    780 5th Ave Ste 140, King of Prussia, 19406-1437, US

    With The Unico System heating and cooling, small really is huge. The Unico System is small, a lot smaller than conventional HVAC systems ⎯ eliminating the need for ugly soffits and large, noisy registers while providing whisper-quiet, draft-free even temperatures preferred by homeowners and HVAC contractors across the nation! Everything You Need to Get Started Homeowner Professional Chiltrix by Unico™ Advantages of Small-Duct High-Velocity Heating & Cooling Compact configuration Even temperatures Low Impact installation Quiet performance Indoor air quality What’s Different About The Unico System There are a lot of choices when it comes to indoor comfort products and specialists who install them. See how The Unico System differs from conventional, mini-splits, and other HVAC systems here. Design Services Let Us Do the Hard Part Unico provides free System Design Services for projects of any type. Let us do the hard part by providing a full system layout, including a material list, for your home or commercial installation. Small-duct high-velocity heating and cooling designed to adapt to old homes, custom homes, and small spaces without compromising comfort, design or efficiency. About Us Policies Register Product Find a Rep Credentials & Compliance Business Hours:Monday – Friday7:00 AM – 5:00 PM (CST) © 2022 The Unico System. All rights reserved. Privacy Policy Terms of Use

  • Trane
    2.9
    St. Louis, US

    Trane is a global leader in air conditioning systems, services and solutions. With a rich history dating back to 1885, Trane has been providing reliable, energy-efficient, and clean air solutions for homes and buildings. The company is committed to making buildings better for people, the environment, and the bottom line. Trane offers a range of products and services for residential and commercial customers, including air conditioning systems, heating systems, ventilation systems, and more. With a global presence and a team of experts, Trane is dedicated to delivering exceptional customer service and support.

  • AL-DON Indoor Air Quality Specialists
    4.4
    11740 Lackland Industrial Drive, St. Louis, 63146, US

    The Name St. Louisians Have Known & Trusted For Over 65 Years, AL-DON! We Install New AC and Heating Systems Available NOW in the AL-DON Warehouse! Schedule Service Now. We are a trusted HVAC company providing residential and commercial services, including air conditioning, air ducts, boilers, mini-split systems, gas furnaces, heat pumps, indoor air quality, seasonal clean and check, radiant floor heating, and zone control systems.

  • One Hour Heating & Air Conditioning® of St. Louis
    5
    3636 S Geyer Rd Ste 100, St. Louis, 63129, US

    One Hour Heating & Air Conditioning is a premier HVAC service provider in the United States. We care about your comfort and respect your time, which is why we back all of our work with a 100% customer satisfaction guarantee for two years. Our team of experts is always on time, guaranteed, and we offer StraightForward Pricing with no hidden fees. We provide a range of services including emergency HVAC services, air conditioning, heating, furnace repair and installation, ductwork, and more. Our goal is to make your home feel like home, and we're here for you when you need us most.

  • Kirkwood Heating & Air Conditioning
    4.7
    St. Louis, MO, 9350 Watson Industrial Park, 63126, US

    Kirkwood Heating and Cooling is a trusted HVAC company in St. Louis, MO, providing top-notch heating, cooling, and heat pump services. Our experienced team has been working in the industry for a long time, with the necessary skills, training, and certifications to resolve your heating, cooling, and indoor air quality problems. We offer a range of services, including repair, maintenance, installation, and replacement, with a focus on individual projects and attention to detail. Our fair pricing system caters to the customer's needs, and we ensure that the entire process occurs within your budget. We are available 24/7 for emergency services and offer a range of products from Carrier, including air conditioners, heat pumps, gas furnaces, programmable thermostats, humidifiers, ductless split systems, boilers, air cleaners, and zoning products.

  • 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.

  • 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.

  • 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.

  • Air Management Supply
    4.3
    123 Main St, Anytown, 12345, US

    Air Management Supply is a leading provider of HVAC equipment and supplies. With a wide range of products from top brands like Rheem, Weatherking, and more, we cater to residential, commercial, and industrial customers. Our team of experts is dedicated to providing exceptional service and support to ensure your HVAC system runs smoothly and efficiently. Whether you're a contractor or a homeowner, we've got you covered.

  • Matheny Heating & Cooling
    4.8
    6317 Olive Street Road, St. Louis, MO, 63130, US

    Since 1942, Matheny Heating and Cooling has built a solid reputation for providing prompt, reliable, and courteous service to customers in St. Louis. Our factory-trained, licensed service technicians are qualified to handle repairs on all makes and models of heating and air conditioning equipment, as well as heat pumps, boilers, water heaters, and ductless room cooling equipment. We also specialize in the installation of high-efficiency heating & cooling systems and are proud of our work. When it's time for new equipment, we stand behind the American Standard® Heating & Air Conditioning brand and are an American Standard® Customer Care dealer.

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Frequently Asked Questions About HVAC Companies

Find answers to common questions about HVAC services, finding contractors, and getting the best heating and cooling solutions for your needs.

What is an AFUE rating, and why is it important?

AFUE (Annual Fuel Utilization Efficiency) measures how effectively a furnace converts fuel to heat. Higher AFUE furnaces waste less fuel. The minimum AFUE for new furnaces is usually 80%, but high-efficiency furnaces can achieve AFUE ratings of 90-98%. Investing in a high-efficiency furnace can save money on heating costs over time.

Should I repair or replace my old furnace?

Deciding between repairing or replacing your furnace depends on
  • Age: Furnaces typically last 15-20 years. If yours is significantly older, replacement is often the better long-term choice.
  • Frequency and Cost of Repairs: If you've been having repeated repairs, replacing the furnace might be more cost-effective in the long run.
  • Energy Efficiency: Newer furnaces are significantly more energy-efficient, which can lead to lower energy bills.
  • Safety Concerns: Older furnaces can pose safety risks, such as carbon monoxide leaks. A new furnace offers enhanced safety features.
Consult with a trusted HVAC professional to assess your furnace and get recommendations.

What are the signs my air conditioner needs refrigerant?

Low refrigerant levels can cause various problems with your air conditioner:
  • Warm Air: The most noticeable sign is that the AC is blowing warm or lukewarm air.
  • Ice Buildup: Ice may form on the AC unit.
  • Increased Energy Bills: Your system has to work harder to cool, leading to higher energy consumption.
  • Hissing or Bubbling Sounds: These sounds can indicate a refrigerant leak.
If you suspect low refrigerant, contact an AC repair specialist to fix the leak and add refrigerant.

What are the different types of HVAC systems?

Several types of HVAC systems are available for residential and commercial buildings:
  • Split Systems: The most common type, consisting of an outdoor unit (condenser/compressor) and an indoor unit (air handler/furnace).
  • Heat Pumps: Provide both heating and cooling by transferring heat between indoor and outdoor air.
  • Ductless Mini-Splits: Ideal for homes without existing ductwork or for adding heating and cooling to specific zones.
  • Packaged Units: A single unit that contains all the system's components.
  • Geothermal Heat Pumps: Use the earth's stable temperature to provide highly efficient heating and cooling.
An HVAC professional can help determine the best type of system for your needs and budget.

What is an AFUE rating, and why is it important?

AFUE (Annual Fuel Utilization Efficiency) measures how effectively a furnace converts fuel to heat. A higher AFUE rating means greater efficiency and lower energy bills. The minimum AFUE for new furnaces is usually 80%, but high-efficiency furnaces can achieve AFUE ratings of 90-98%. Investing in a high-efficiency furnace can save money on heating costs over time.

Should I repair or replace my old furnace?

Here are some factors to consider when deciding whether to repair or replace your furnace:
  • Age: Furnaces typically last 15-20 years. If yours is significantly older, replacement is often the better long-term choice.
  • Frequency and Cost of Repairs: If you've been having frequent or expensive repairs, replacing the furnace might be more cost-effective in the long run.
  • Energy Efficiency: Newer furnaces are significantly more energy-efficient, which can lead to lower energy bills.
  • Safety Concerns: Older furnaces might have safety issues, such as carbon monoxide leaks. A new furnace offers enhanced safety features.
Consult with a reputable HVAC professional to assess your furnace and get recommendations.

What are the signs my air conditioner needs refrigerant?

Low refrigerant levels can cause various problems with your air conditioner:
  • Warm Air: The most noticeable sign is that the AC is blowing warm or not cool air.
  • Ice Buildup: Ice may form on the AC unit.
  • Increased Energy Bills: Your system has to work harder to cool, leading to higher energy consumption.
  • Hissing or Bubbling Sounds: These sounds may suggest a refrigerant leak.
If you suspect low refrigerant, contact an HVAC technician to fix the leak and add refrigerant.

What are the different types of HVAC systems?

Several types of HVAC systems are available for residential and commercial buildings:
  • Split Systems: The most common type, consisting of an outdoor unit (condenser/compressor) and an indoor unit (air handler/furnace).
  • Heat Pumps: Provide both heating and cooling by transferring heat between indoor and outdoor air.
  • Ductless Mini-Splits: Ideal for homes without existing ductwork or for adding heating and cooling to specific zones.
  • Packaged Units: A single unit that contains all the system's components.
  • Geothermal Heat Pumps: Use the earth's stable temperature to provide highly efficient heating and cooling.
An HVAC professional can help determine the best type of system for your needs and budget.