HVAC Contractors in Missouri

HVAC contractors install, repair and maintain the heating, ventilation and air conditioning equipment that keeps your home comfortable. They work on furnaces, air conditioners, ductwork, thermostats and ventilation, and help size replacement systems.

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Common HVAC services include:

  • Furnace and air conditioner repair
  • Seasonal tune-ups and maintenance plans
  • Replacing furnaces, AC units and air handlers
  • Ductwork repair, sealing and installation
  • Thermostat and ventilation upgrades

Call an HVAC contractor when your system stops heating or cooling, runs constantly, makes new noises, or your energy bills jump. Heat pump installation and air duct cleaning also have their own categories.

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Top Professionals near Missouri

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Cross Mechanical, LLC

Cross Mechanical, LLC

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Kansas City, MO HVAC Contractors

Cross Mechanical is a reliable, locally owned HVAC company specializing in heating, cooling, and ventilation services for residential and light commercial clients. Built on a foundation of integrity, quality workmanship, and customer-first service, Cross Mechanical is committed to keeping homes and businesses comfortable year-round. From new system installations and energy-efficient upgrades to routine maintenance and emergency repairs, our team delivers dependable solutions tailored to each customer’s needs. We take pride in honest pricing, fast response times, and doing the job right the first time. At Cross Mechanical, we don’t just fix systems—we build long-term relationships through trust, consistency, and top-tier service.

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A.B. May Heating, A/C, Plumbing & Electrical

A.B. May Heating, A/C, Plumbing & Electrical

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Kansas City, MO HVAC Contractors

A.B. May is a family-run home services company founded in 1959 that serves the greater Kansas City area with HVAC, plumbing, drain and sewer, electrical and appliance repair and installation; A.B. May provides 24/7 emergency service, same-day and upfront pricing, financing and service-plan options, employs highly trained technicians, and positions A.B. May as a long-standing, community-focused provider committed to reliable, award-winning home service.

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Absolute Comfort Technologies, Inc.

Absolute Comfort Technologies, Inc.

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Kansas City, MO HVAC Contractors

Absolute Comfort Technologies Inc. is a Kansas City–based, family-owned residential HVAC and generator company built on honesty, competitive pricing, superior craftsmanship, and reliability; Absolute Comfort Technologies provides system repair, cleaning, full system replacement and installation, 24/7 availability, financing options, and fully guaranteed, licensed and insured service backed by over a decade of HVAC and generator experience and a focus on exceptional customer care.

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Blue Heating and Cooling

Blue Heating and Cooling

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Parkville, MO HVAC Contractors

Blue Heating and Cooling is a family-owned, full-service HVAC company based in Parkville, Missouri that has served the Kansas City Metro and Northland since 2010; Blue Heating and Cooling provides residential and commercial heating and cooling installations, repairs, maintenance, indoor air quality services, yearly service agreements and financing options, employs licensed and insured technicians, offers same-day appointments and a satisfaction guarantee, and focuses on fair pricing, quality workmanship and responsive customer support to keep customers comfortable and protect their HVAC investments.

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Buckner's Heating, Cooling, and Plumbing

Buckner's Heating, Cooling, and Plumbing

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Kansas City, MO HVAC Contractors

Buckner’s Heating, Cooling & Plumbing (Buckner’s) is a Kansas City–area home services company founded in 1983 that provides comprehensive HVAC and plumbing solutions including heating and air conditioning repair, installation and maintenance, ductless and geothermal systems, indoor air quality services, sewer and drain work, water heaters and related plumbing services; Buckner’s emphasizes highly trained technicians, free estimates, a 100% satisfaction guarantee, after-hours and emergency service, financing options and price-matching, and expanded its offerings in 2023 by joining with R-Mech to deliver whole-home service across multiple Kansas City locations.

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Classic Aire Care

Classic Aire Care

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St. Louis, MO HVAC Contractors

Classic Aire Care is a Greater St. Louis and St. Charles home-services company serving the community since 1926 that provides heating, cooling, plumbing and electrical services including HVAC installation, repair and maintenance, boilers and furnaces, heat pumps and geothermal systems, ductless systems, indoor air quality solutions, drain and sewer work, and whole-home generators. Classic Aire Care offers 24/7 emergency service, online booking, maintenance plans, financing and promotional deals, operates a large fleet of service vans for rapid same-day response, and emphasizes highly trained technicians and a 100% satisfaction guarantee.

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Design Aire Heating & Cooling - St. Louis

Design Aire Heating & Cooling - St. Louis

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St. Louis, MO HVAC Contractors

Design Aire Heating & Cooling is a St. Louis–area HVAC firm with a family history dating back to 1904 that provides residential and commercial heating, cooling, and home-performance services including furnace and boiler repair, AC installation and maintenance, heat pumps, ductless and geothermal systems, architectural sheet metal for new construction, and planned maintenance agreements. Design Aire emphasizes long technical experience (service technicians average over 26 years), ongoing professional training, background-checked staff, and strong local credentials—serving multiple St. Louis area locations (Maryland Heights, St. Louis, O’Fallon) as the #1 Trane dealer in the Midwest and focusing on customer satisfaction, energy-efficiency solutions, financing/rebate assistance, and reliable, high-quality workmanship.

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Dole Heating & Air Conditioning

Dole Heating & Air Conditioning

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St. Louis, MO HVAC Contractors

Dole Heating & Air Conditioning (also listed as Dole Heating, Air Conditioning & Duct Cleaning) is a St. Louis–based HVAC contractor in business since 2004 that provides year-round comfort solutions including air conditioner and furnace repair, duct cleaning, heat pump and mini-split services, generator installation, indoor air-quality work, and system replacement and maintenance. Dole Heating & Air Conditioning offers financing options and promotes 10-year warranties, provides free consultations, serves St. Louis, Jefferson and St. Charles counties (and many local communities), and emphasizes experienced technicians and customer-focused service from its Broadway location.

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Jersey heating and cooling llc

Jersey heating and cooling llc

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St. Louis, MO HVAC Contractors

Jersey Heating and Cooling LLC is a St. Louis–based HVAC company that provides residential and commercial heating and air conditioning repair, installation, and maintenance, including 24/7 emergency HVAC repairs, routine maintenance, energy-efficiency consultations, and full system installations such as central air, ductless mini-splits, heat pumps, and furnaces. Jersey Heating and Cooling LLC emphasizes certified technicians, quick response times, cost-effective and tailored solutions, and a results-driven approach to ensure reliable, energy-efficient year-round comfort for homes and businesses.

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KC Comfort Champs

KC Comfort Champs

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Kansas City, MO HVAC Contractors

KC Comfort Champs is an HVAC contractor serving Kansas City and nearby communities since 2015, offering heating and air conditioning repair, installation and preventative maintenance, ductless mini-split systems, a Comfort Club maintenance membership with discounts and scheduling, financing for repairs and installs, 10-year parts & labor warranty on new installations plus one year of maintenance, and 24/7 emergency service with a focus on energy efficiency and customer satisfaction.

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Heating and Air Conditioning Questions and Answers

What does an HVAC contractor do?

An HVAC contractor installs, repairs and maintains heating and cooling systems, including furnaces, air conditioners, air handlers, ductwork and thermostats. They diagnose problems, perform seasonal maintenance and size replacement equipment for the home.

When should I repair or replace my heating or cooling system?

Repairs often make sense for a newer system with a single failed part. Replacement is worth discussing when equipment is older, needs frequent repairs, uses a phased-out refrigerant, or no longer keeps the home comfortable. Ask the contractor to compare both options in writing.

How do I choose an HVAC contractor?

Look for a contractor who performs a load calculation before recommending new equipment, explains options clearly and provides written estimates and warranty terms. Ask whether technicians who handle refrigerant hold EPA Section 608 certification and whether local licensing or permits apply.

What affects the cost of HVAC work?

Repair costs depend on the part and diagnostic time. Replacement depends on equipment type, capacity and efficiency, ductwork changes, electrical or gas work, and local permit requirements. Maintenance plans, rebates and the season you schedule in can also affect the total.

How should I prepare for an HVAC service visit?

Clear access to the furnace or air handler, the outdoor unit and the thermostat, and replace or check the air filter if you can. Note what the system is doing, such as noises, short cycling or uneven temperatures, and when the problem started.