Fort Smith's Climate Data and Its Top-Rated Window Pros
ENERGY STAR groups Sebastian County into its South-Central zone, the U-factor and SHGC target worth checking against any quote you get in Fort Smith. Below that spec discussion sit 10 installers, their order set by Google rating, since Fort Smith is outside this site's window license file. A high rating is worth a look, not a finished decision.
Google Maps ratings checked · How we rank
3AIECC climate zone · ENERGY STAR South-Central zone
Fort Smith's climate zone, in plain terms
Sebastian County's normal precipitation runs about 47.3 inches a year, with 2.9 inches of snow, which is a separate question from energy performance but still shapes which window details matter in Fort Smith.
Moisture and glass performance are handled by different parts of a window's spec sheet, and a Fort Smith 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 1.2 mi away.
What FEMA's risk data says about Fort Smith
FEMA scores Sebastian County's winter-weather risk as Relatively High and its flood risk as Relatively Moderate.
Winter risk in Fort Smith weighs on U-factor and condensation resistance; flood risk weighs more on sill height and drainage detailing than on the glass package.
Treat these as two separate conversations with a Fort Smith contractor, not one.
- Hurricane
- Very Low
- Strong wind
- Relatively Moderate
- Winter weather
- Relatively High
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Fort Smith 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.
Fort Smith'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.
- Russell ExteriorGoogle reviews
- Vision ExteriorsGoogle reviews
- Harris Siding & WindowsGoogle reviews
- Winn's Window ShopGoogle reviews
- Shower Door SpecialtiesGoogle reviews
- Sawyer's Inc.Google reviews
- Harry G Barr CoGoogle reviews
- Sutherlands InstallationsGoogle reviews
- Arkansas Glass & MirrorGoogle reviews
- Superior Siding & WindowGoogle reviews