Sierra Mechanical
HVAC contractor in O'Fallon, MO 63366
About this company
Sierra Mechanical is listed as an HVAC contractor at 212 Crafton Dr in O'Fallon, Missouri, in St. Charles County. It is one of 17 HVAC companies in ZIP 63366.
Other HVAC companies nearby
Air Rescue25 S Lang Dr, O'Fallon
0.8 mi(636) 764-0700
Aire Serv Heating & Air Conditiong1253 W Terra Lane, O Fallon
0.9 mi(636) 474-3878
Hoff Heating & AC1520 Kemmar Ct, O Fallon
1.0 mi(636) 388-4141
RK Heating & Cooling975 W Terra Ln, O Fallon
1.4 mi(636) 242-5335
AAA Home Services827 W Terra Ln, O Fallon
1.6 mi(636) 397-3200
Housing market around ZIP 63366
Figures describe the local area, not this company.
Typical home value$364,000+1.9% past year · +72% in 10 years
Typical rent$1,708+1.7% past year
12-month value outlook+2.3%
New homes permitted, 20251,661St. Charles County
Days to sale agreement11St. Louis metro · 8 a year ago
Listings with a price cut29.2%St. Louis metro
Sale price vs list100.1%St. Louis metro
New construction sales128St. Louis metro, Aug · −14% from last year
Source: Zillow (home values, rent, outlook and metro sales), data through Sep 2026. Permits: U.S. Census Bureau.
Typical home value, last 10 years
Source: Zillow Home Value Index, Sep 2026.
Local building angle: St. Charles County permitted 1,661 new homes in 2025, including 284 apartment units. 46% of the homes in this ZIP were built since 2000.
Local figures are estimates from public records and Zillow housing data, updated regularly.