HVAC companies in St Louis, MO 63123
14 HVAC companies, with local market data for this ZIP.
General contractors 32HVAC 14Electricians 6Roofing and exteriors 5Concrete and masonry 5Carpentry, drywall and windows 4Remodeling 4Painting 3Fences and decks 2Other construction trades 2Garage doors 1Flooring and tile 1
Area profitability, HVAC48 / 100Moderate market, crowded field
Typical home value$247,000+2.7% in the past year
New homes permitted, 2025957St. Louis County
Homeowners74.9%21,872 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Affton Heating & ACHVAC contractor · 7212 General Sherman Ln, St Louis(314) 849-6887 · afftonheating.com
Air Dynamics Heating & CoolingHVAC contractor · 9701 Gravois Rd, St Louis(314) 760-9433 · airdynamicsstl.com
Crestside Ballwin Heating & CoolingHVAC contractor · 8130 Valcour Ave, Affton(314) 351-8300 · crestside.com
Fleddermann Heating and CoolingHVAC contractor · 9529 Yuma Drive, St. Louis(314) 280-8909 · fledhvac.com
H C Sharp CoHVAC contractor · 8301 Crest Industrial Dr, St Louis(314) 351-6900 · hcsharpco.com
Harster Heating & Air ConditioningHVAC contractor · 9900 Gravois Rd, St Louis(314) 631-5300 · harsterheating.com
Level 9 Heating and CoolingHVAC contractor · 11040 Lin Valle Dr, Saint Louis(636) 259-4252 · level9hvac.com
Metro Heating & CoolingHVAC contractor · 11146 Lindbergh Business Ct Ste 102, Saint Louis(314) 845-5900 · metroheatcool.com
Meyer Heating & AirHVAC contractor · 11134 Lindbergh Business Ct, St. Louis(314) 845-1929 · meyerair.com
Meyer Heating and AirHVAC contractor · 11134 Lindbergh Business Ct, Saint Louis(314) 845-1929 · meyerair.com
Meyer Heating and AirHVAC contractor · 11134 Lindbergh Business Ct Ste D, Saint Louis(314) 845-1929 · meyerair.com
Mgk Heating And CoolingHVAC contractor · 9410 Lavern Pl, St Louis(314) 323-3914 · mgkheatingandcooling.com
Rhymes Heating & CoolingHVAC contractor · 10958 Lin Valle Dr, Saint Louis(314) 638-8181 · rhymesheating.com
Southtown Refrigeration Heating & CoolingHVAC contractor · 7446 Gravois Rd, St. Louis(314) 352-3029 · southtown.org
Weis Comfort SystemsHVAC contractor · 9900 Gravois Rd, Saint Louis(636) 343-8440 · weiscomfortsystems.com
Buneta Heating & CoolingHVAC contractor · 11155 S Towne Sq Ste B1, Saint Louis(314) 200-6222
HVAC in ZIP 63123 at a glance
Local building angle: St. Louis County permitted 957 new homes in 2025, including 456 apartment units. 5% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.