Sandwich's Climate Data and Its Top-Rated Window Pros
Sandwich sits in IECC climate zone 5A, which sets the energy-performance bar here no matter who ends up installing your windows. A window license file doesn't cover Sandwich on this site, so Google Maps supplies the 10 ranked names you see below. Checked September 2026.
Google Maps ratings checked · How we rank
5AIECC climate zone · ENERGY STAR Northern zone
What zone 5A means for a Sandwich window
Moisture and glass performance are handled by different parts of a window's spec sheet, and a Sandwich 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 3.2 mi away.
Storm and weather risk around Sandwich
FEMA scores Barnstable County's winter-weather risk as Relatively Low and its flood risk as Relatively Moderate.
Winter risk in Sandwich 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 Sandwich contractor, not one.
- Hurricane
- Relatively High
- Strong wind
- Relatively Moderate
- Winter weather
- Relatively Low
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Sandwich 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.
10 top-rated window installers near Sandwich, MA
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.
- Bel Islands Home Improvement, LLCGoogle reviews
- Renewal by Andersen Window ReplacementGoogle reviews
- ASA Construction GroupGoogle reviews
- Cape Cod RenovationGoogle reviews
- Persson Construction, Inc.Google reviews
- Pella Windows and Doors Showroom of Centerville, MAGoogle reviews
- Bicalho Cape RemodelingGoogle reviews
- Cape Cod ExteriorsGoogle reviews
- Smarter Home inc.Google reviews
- DeNardo Home Improvement of Cape Cod, Inc.Google reviews