City of Saint Louis, Missouri
HVAC repair and installation in Saint Louis, MO
St. Louis has hot, humid summers and cold winters, and its brick housing stock is among the oldest in the Midwest. Many homes still have boilers and radiators, and adding central AC often takes creative design.
Areas served include
Tower Grove · Soulard · The Hill · Lafayette Square · Central West End · Dutchtown
Same-day appointments when a local contractor has an opening
36 ZIP codes covered in Saint Louis
Saint Louis homes and their HVAC systems
Tower Grove, Soulard and Lafayette Square have 19th-century brick homes with boilers or retrofitted furnaces. The Hill and Dutchtown have early-1900s brick bungalows and flats with basements.
Local conditions that affect your system
Boiler-heated brick homes
Adding AC to homes with radiators usually means small-duct or ductless systems.
Humid summers
The river city's humidity makes AC sizing and dehumidification important.
Severe storms
Spring storms and hail can damage condensers.
Seasons and peak demand in Saint Louis
St. Louis summers bring highs around 90°F with heavy humidity. Winters average in the 30s with occasional snow and single-digit cold. Severe storms peak in spring. Many brick homes have thick masonry walls that stay warm into the evening in summer, so AC runs longer after sunset than in frame houses. Shoulder seasons are short.
Common HVAC calls in Saint Louis
Also available: emergency HVAC and every other HVAC service.
Saint Louis at a glance
- County
- City of Saint Louis
- Utilities
- Ameren Missouri supplies electricity and Spire supplies natural gas.
- Permits & licensing
- The City of St. Louis Building Division issues permits and licenses mechanical contractors.
- ZIP codes covered
- 63101, 63102, 63103, 63104, 63105, 63108, 63109, 63110, 63111, 63112, 63114, 63116, 63117, 63118, 63119, 63121, 63122, 63123 and 18 more
Saint Louis HVAC FAQ
How do I add AC to a brick St. Louis home with radiators?
Small-duct high-velocity systems or ductless mini-splits avoid tearing into plaster and brick.
Who supplies gas and power in St. Louis?
Ameren Missouri supplies electricity and Spire supplies natural gas.
Last reviewed . General information, not a diagnosis of your system.
Guides for Saint Louis homeowners
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