Creve Coeur, MO Climate Specs + Top-Rated Window Installers
Creve Coeur sits in IECC climate zone 4A, which sets the energy-performance bar here no matter who ends up installing your windows. A window license file doesn't cover Creve Coeur on this site, so Google Maps supplies the 8 ranked names you see below. Checked October 2026.
Google Maps ratings checked · How we rank
4AIECC climate zone · ENERGY STAR North-Central zone
Creve Coeur's climate zone, in plain terms
St. Louis County's normal precipitation runs about 42.3 inches a year, with 8.1 inches of snow, which is a separate question from energy performance but still shapes which window details matter in Creve Coeur.
Moisture and glass performance are handled by different parts of a window's spec sheet, and a Creve Coeur buyer benefits from checking both instead of assuming one implies the other.
Data: U.S. EPA / DOE, ENERGY STAR, ENERGY STAR Version 7.0 Climate Zones by County/ZIP (Windows, Doors, and Skylights) (V7.0); Pacific Northwest National Laboratory (DOE Building America), Guide to Determining Climate Zone by County: Building America and IECC 2021 Updates (PNNL-33270) (2021 IECC), from the nearest NOAA station 4.6 mi away.
What FEMA's risk data says about Creve Coeur
FEMA rates St. Louis County's hurricane risk as Very Low and its wind risk as Relatively High.
Neither rating changes a window's energy label, but both are exactly what impact-resistance and design-pressure ratings are built to answer for a Creve Coeur home.
Ask specifically about design pressure and impact rating for Creve Coeur, not just energy performance, if either risk rating comes back on the high side.
- Hurricane
- Very Low
- Strong wind
- Relatively High
- Winter weather
- Very High
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Creve Coeur window bids come in
- How to Read an NFRC Window Label Four numbers on one sticker decide most of a window's real-world performance. Here's what each one means.
- ENERGY STAR Window Criteria by Climate Zone ENERGY STAR splits the country into four zones, each with its own numbers. Here they are, and why the Northern zone works backward from the other three.
- Impact Windows vs. Shutters in Florida's Hurricane Zones Florida gives homeowners two paths to a protected opening. Here's how each one is tested, and where the HVHZ raises the bar further.
Creve Coeur's top-rated window installers, by Google
The order below weighs a Google rating against its review count, the same way this site weighs a U-factor against a brochure claim: on the number, not the name. Treat it as a rating, never as proof of a license, bond or HVHZ approval.
- Chaney Windows And DoorsGoogle reviews
- STL Windows DirectGoogle reviews
- Universal Windows Direct of St LouisGoogle reviews
- Arch City WindowGoogle reviews
- Nu-View Replacement Windows & DoorsGoogle reviews
- Genesco Window ProductsGoogle reviews
- Pella Windows & Doors of Greater St. Louis - (Service & Warehouse location)Google reviews
- The Window Store - W-S Window & Door Co.Google reviews