HVAC companies in O Fallon, IL 62269
6 HVAC companies, with local market data for this ZIP.
General contractors 23Roofing and exteriors 13HVAC 6Fences and decks 3Garage doors 2Excavation and demolition 2Carpentry, drywall and windows 1Electricians 1Remodeling 1Concrete and masonry 1
Area profitability, HVAC62 / 100Strong market, balanced field
Typical home value$312,000+2.8% in the past year
New homes permitted, 2025463St. Clair County
Homeowners71.3%13,872 households
Source: Zillow (home value and housing demand in the score), data through Sep 2026. Permits and households: U.S. Census Bureau.
Heritage Heating & CoolingHVAC contractor · 97 Betty Ln, O Fallon(636) 597-6937 · heritage-service.com
Home Heating & CoolingHVAC contractor · 1450 Frontage Rd, O'Fallon(618) 416-0111 · weheatyourhome.com
Honest Abe's Home ServicesHVAC contractor · 1910 W Highway 50, O Fallon(618) 623-4116 · callhonestabes.com
The FurnaceGuys Heating&CoolingHVAC contractor · 509 Joy Dr, O'Fallon(618) 719-8631 · tfgsheatingandcooling.com
Bel-O-Cooling & HeatingHVAC contractor · 90 Whitehall Dr, O Fallon(618) 632-5700
Davis Heating and Cooling Ofallon IlliniosHVAC contractor · 103 Karl Pl, O'Fallon(618) 781-9254
HVAC in ZIP 62269 at a glance
Local building angle: St. Clair County permitted 463 new homes in 2025, including 57 apartment units. 42% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.