HVAC companies in Saint Louis, MO 63125
9 HVAC companies, with local market data for this ZIP.
General contractors 19HVAC 9Roofing and exteriors 5Other construction trades 4Concrete and masonry 4Remodeling 4Garage doors 4Flooring and tile 3Electricians 3Painting 2Fences and decks 1
Area profitability, HVAC39 / 100Moderate market, crowded field
Typical home value$205,000+2.7% in the past year
New homes permitted, 2025957St. Louis County
Homeowners72.2%13,706 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
All Climate ServicesHVAC contractor · 234 Lemay Ferry Rd, St. Louis(314) 631-0890 · allclimateservices.com
countscomfortsystemsHVAC contractor · 209 Loretta Ave, St Louis(314) 324-1746 · Countscomfortsystems.com
Dunn Heating & CoolingHVAC contractor · 638 Lemay Ferry Rd, Saint Louis(314) 809-3019 · dunnheatcool.com
HB Mechanical ContractorsHVAC contractor · 227 Dammert Ave, St Louis(314) 226-8463 · hbmechanicalheatingandcooling.com
Indoor Comfort TeamHVAC contractor · 2613 Telegraph Rd, Saint Louis(314) 230-9542 · indoorcomfortteam.com
JP Heating and AirHVAC contractor · 3756 Lemay Village Ln, St Louis(636) 284-5137 · JPheatingair.com
Mertens Service Inc.HVAC contractor · 1253 Grover Rd, St Louis(314) 845-1500 · mertensservice.com
Nick Dolinic Heating & CoolingHVAC contractor · 759 Lemay Ferry Rd, Saint Louis(314) 631-8222 · nickdolinic.com
Air Quality Services Heating & CoolingHVAC contractor · 1114 Buckley Rd, Saint Louis(314) 487-6200
HVAC in ZIP 63125 at a glance
Local building angle: St. Louis County permitted 957 new homes in 2025, including 456 apartment units. 3% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.