Montville's Climate Data and Its Top-Rated Window Pros
Local risk and climate data for Montville, NJ sit below, translated into plain terms for a window buyer rather than left as raw codes. 10 installers follow that data instead of a license roster, their rank built from Google's star rating and how many people left one. Checked September 2026.
Google Maps ratings checked · How we rank
5AIECC climate zone · ENERGY STAR Northern zone
Montville's climate zone, in plain terms
New York-Newark-Jersey City, NY-NJ runs a January average near 29°F and climbs to about 75°F by July, a swing that adds up to roughly 5,631 heating degree days most winters, with 865 on the summer cooling side of the ledger.
That load is the actual argument for paying up for a better U-factor in Montville, separate from anything a brochure claims.
Zone 5A's requirement is the floor; Montville's specific load is what tells you whether beating that floor is worth the extra cost.
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 2.4 mi away.
What FEMA's risk data says about Montville
FEMA scores Morris County's winter-weather risk as Very High and its flood risk as Relatively High.
Winter risk in Montville 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 Montville contractor, not one.
- Hurricane
- Relatively Moderate
- 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 Montville 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.
Montville'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.
- Winstar WindowsGoogle reviews
- Taylor Rae ConstructionGoogle reviews
- Blue Nail ExteriorsGoogle reviews
- RWC Windows, Doors, Kitchens, & BathsGoogle reviews
- Window World of North JerseyGoogle reviews
- CKG Contractors, Inc.Google reviews
- The Window Source of North JerseyGoogle reviews
- Window NationGoogle reviews
- AGM Window and Door, LLc- Replacement Windows and InstallationsGoogle reviews
- ACRE Windows & DoorsGoogle reviews