HVAC companies in Weldon Spring, MO 63304
8 HVAC companies, with local market data for this ZIP.
General contractors 35Roofing and exteriors 19HVAC 8Painting 6Remodeling 6Electricians 5Concrete and masonry 3Excavation and demolition 1Garage doors 1Flooring and tile 1
Area profitability, HVAC67 / 100Strong market, crowded field
Typical home value$401,000+1.4% in the past year
New homes permitted, 20251,661St. Charles County
Homeowners87.7%16,222 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Anton's Plumbing Heating/Cooling & Energy ExpertsHVAC contractor · 835 Westwood Industrial Park Dr Ste 205, Weldon Spring(314) 384-4060 · antonshvac.com
Comfort ExpertsHVAC contractor · 5501 St Charles St, Cottleville(636) 939-9220 · comfortexpertsheatandair.com
Comfort ExpertsHVAC contractor · 4532 Central School Rd, Saint Charles(636) 939-9220 · comfortexpertsheatandair.com
Complete ServiceHVAC contractor · 6209 Mid Rivers Mall Dr, Saint Peters(636) 477-7200 · completeservicestl.com
Illy HVACHVAC contractor · 3803 William Dr, St Charles(314) 808-2162 · illyhvac.com
Kuenz Heating & Sheet Metal CompanyHVAC contractor · 811 Westwood Industrial Park Dr, Saint Charles(636) 936-1555 · kuenzsheetmetal.com
No Problem Heating and CoolingHVAC contractor · 1565 Kisker Rd, St Peters(636) 400-7776 · npmheatingandcooling.com
Raydel Heating and CoolingHVAC contractor · 1021 Reddington Timbers Dr, St Charles(314) 901-1027 · RaydelHeatingandcooling.com
Qualified Heating and CoolingHVAC contractor · 831 Westwood Industrial Park Dr, Weldon Spring(314) 921-0157
HVAC in ZIP 63304 at a glance
Local building angle: St. Charles County permitted 1,661 new homes in 2025, including 284 apartment units. 23% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.