Window Climate Specs for Woodland Hills, CA
ENERGY STAR groups Los Angeles County into its South-Central zone, which is the U-factor and SHGC target worth checking against any quote you get in Woodland Hills. The longest-licensed window contractors based in Woodland Hills are listed below the climate data.
Licenses checked · California Contractors State License Board
3BIECC climate zone · ENERGY STAR South-Central zone
What zone 3B means for a Woodland Hills window
Los Angeles-Long Beach-Anaheim, CA runs a January average near 56°F and climbs to about 78°F by July, a swing that adds up to roughly 1,336 heating degree days most winters, with 1,819 on the summer cooling side of the ledger.
That load is the actual argument for paying up for a better U-factor in Woodland Hills, separate from anything a brochure claims.
Zone 3B's requirement is the floor; Woodland Hills'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.
Storm and weather risk around Woodland Hills
FEMA scores Los Angeles County's winter-weather risk as Relatively Moderate and its flood risk as Very High.
Winter risk in Woodland Hills 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 Woodland Hills contractor, not one.
- 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 Woodland Hills 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.
Window installers with the longest license records in Woodland Hills
Oldest license first, newest last, pulled directly from the state's file. This list isn't for sale.
- Precision Glass & Windows INCVerify license
- Webshell GlassVerify license
- Quality Home Renovators INCVerify license
- USA General Contractors INCVerify license
- Hidden Heights GlassVerify license
- Avv Glass INCVerify license