Colchester, VT Climate Specs + Top-Rated Window Installers
Local risk and climate data for Colchester, VT sit below, translated into plain terms for a window buyer rather than left as raw codes. 7 installers follow that data instead of a license roster, their rank built from Google's star rating and how many people left one. Checked October 2026.
Google Maps ratings checked · How we rank
6AIECC climate zone · ENERGY STAR Northern zone
Colchester's climate zone, in plain terms
Colchester falls in IECC climate zone 6A, and ENERGY STAR separately groups Chittenden County into its Northern zone for window certification.
Those two numbers, not the brand on the box, set the U-factor and SHGC worth checking on any quote you get in Colchester.
A Burlington-South Burlington, VT contractor who can't name either one on request is worth a second question before you sign.
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 6.3 mi away.
What FEMA's risk data says about Colchester
FEMA rates Chittenden County's hurricane risk as Relatively Low and its wind risk as Relatively Moderate.
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 Colchester home.
Ask specifically about design pressure and impact rating for Colchester, not just energy performance, if either risk rating comes back on the high side.
- Hurricane
- Relatively Low
- Strong wind
- Relatively Moderate
- Winter weather
- Relatively Moderate
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Colchester 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.
Colchester'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.
- Vermont Renovation and RemodelingGoogle reviews
- Window World of the Green MountainsGoogle reviews
- Acme GlassGoogle reviews
- Roy's Windows, Siding & Patio RoomsGoogle reviews
- Marvin Design Gallery by Windows & Doors By BrownellGoogle reviews
- Pella Windows and Doors Showroom of South Burlington, VTGoogle reviews
- All Seasons SidingGoogle reviews