HVAC companies in St Louis, MO 63118
2 HVAC companies, with local market data for this ZIP.
General contractors 10Other construction trades 4Roofing and exteriors 3HVAC 2Concrete and masonry 1Fences and decks 1Electricians 1Remodeling 1
Area profitability, HVAC46 / 100Moderate market, balanced field
Typical home value$177,000−3.6% in the past year
New homes permitted, 2025272St. Louis County
Homeowners43.9%11,977 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
A1 Interstate Mechanical LLCHVAC contractor · 1820 Cherokee St, St Louis(314) 776-3050 · a1interstatemechanical.com
Century Cooling, & HeatingHVAC contractor · 3500 Indiana Ave, St Louis(314) 772-3552 · hkdp.qc.ca
HVAC in ZIP 63118 at a glance
Local building angle: St. Louis County permitted 272 new homes in 2025, including 209 apartment units. 1% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.