HVAC companies in Hazelwood, MO 63135
2 HVAC companies, with local market data for this ZIP.
General contractors 5HVAC 2Carpentry, drywall and windows 1Excavation and demolition 1Garage doors 1Roofing and exteriors 1Concrete and masonry 1Electricians 1
Area profitability, HVAC33 / 100Soft market, balanced field
Typical home value$110,000−0.7% in the past year
New homes permitted, 2025957St. Louis County
Homeowners54.2%8,527 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Knowles ServicesHVAC contractor · 34 N Florissant Rd, St. Louis(314) 521-0284 · knowlesac.ruudrealiable.net
Grimes Heating and Air ConditioningHVAC contractor · 286 Reasor Dr, Hazelwood(314) 521-0074
HVAC in ZIP 63135 at a glance
Local building angle: St. Louis County permitted 957 new homes in 2025, including 456 apartment units. 2% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.