HVAC Contractors in Pacific, MO

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 Pacific, MO

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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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Kirkwood Heating & Air Conditioning

Kirkwood Heating & Air Conditioning

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St. Louis, MO HVAC Contractors

Kirkwood Heating & Air Conditioning is a St. Louis–based HVAC contractor located at 9350 Watson Industrial Park that provides residential and commercial heating, cooling, and indoor air quality services including furnace and AC repair, installation and replacement, heat pump and ductless system work, water heaters, thermostats and zoning, sheet metal fabrication, and air duct sealing. Kirkwood Heating & Air Conditioning positions itself as a team of trained, certified service professionals offering maintenance agreements, extended warranties, financing options, and emergency service to keep systems running efficiently and to extend equipment life.

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Rhymes Heating and Cooling

Rhymes Heating and Cooling

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St. Louis, MO HVAC Contractors

Rhymes Heating & Cooling is a St. Louis–area HVAC company with a Ryan family tradition dating to 1926 that provides residential and commercial heating, cooling and indoor-air-quality services, including AC and furnace repair, boiler and radiator service, system installation and replacement, water heaters, heat pumps, ductless mini-splits, sheet-metal fabrication, maintenance agreements, and 24/7 emergency service; Rhymes Heating & Cooling emphasizes trained technicians, transparent pricing, and long-standing local service across Oakville, Webster Groves and greater St. Louis.

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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.