East Los Angeles's Climate Data and Its Top-Rated Window Pros
East Los Angeles sits in IECC climate zone 3B, which sets the energy-performance bar here no matter who ends up installing your windows. A window license file doesn't cover East Los Angeles on this site, so Google Maps supplies the 10 ranked names you see below. Checked September 2026.
Google Maps ratings checked · How we rank
3BIECC climate zone · ENERGY STAR South-Central zone
East Los Angeles's climate zone, in plain terms
East Los Angeles falls in IECC climate zone 3B, and ENERGY STAR separately groups Los Angeles County into its South-Central 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 East Los Angeles.
A Los Angeles-Long Beach-Anaheim, CA 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 4.1 mi away.
What FEMA's risk data says about East Los Angeles
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 East Los Angeles home.
Ask specifically about design pressure and impact rating for East Los Angeles, not just energy performance, if either risk rating comes back on the high side.
- 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 East Los Angeles 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.
East Los Angeles'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.
- The Sliding Door Repair CompanyGoogle reviews
- Wintorium Windows and DoorsGoogle reviews
- JC Windows and DoorsGoogle reviews
- Vc windows and sliding doorsGoogle reviews
- 3B Windows & DoorsGoogle reviews
- Gallegos WindowsGoogle reviews
- Guzman Glass & MirrorGoogle reviews
- Leon GlassGoogle reviews
- California Glass WindowsGoogle reviews
- GM Windows and Doors, Inc.Google reviews