What Lake Worth Homes Need From a Replacement Window
ENERGY STAR groups Palm Beach County into its Southern zone, which is the U-factor and SHGC target worth checking against any quote you get in Lake Worth. The longest-licensed window contractors based in Lake Worth are listed below the climate data.
Licenses checked · Florida Department of Business and Professional Regulation
1AIECC climate zone · ENERGY STAR Southern zone
Lake Worth's climate zone, in plain terms
Lake Worth falls in IECC climate zone 1A, and ENERGY STAR separately groups Palm Beach County into its Southern 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 Lake Worth.
A Miami-Fort Lauderdale-West Palm Beach, FL 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 7.1 mi away.
What FEMA's risk data says about Lake Worth
Palm Beach County's hail risk sits at Relatively Low and its wildfire risk at Relatively Moderate, according to FEMA's National Risk Index.
Hail risk matters for glass and screen durability in Lake Worth; wildfire risk matters more for the frame material and nearby vegetation than for the glass itself.
Either way, it's a reasonable question to bring to a Lake Worth installer before you settle on a product line.
- Hurricane
- Very High
- Strong wind
- Relatively High
Data: FEMA, National Risk Index for Natural Hazards - County-level table, v1.20 (v1.20, December 2025).
Guides to finish before Lake Worth 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.
Lake Worth's longest-licensed window installers
Oldest license first, newest last, pulled directly from the state's file. This list isn't for sale.
- Florida Window & DoorVerify license
- Ironclad Impact Windows & Doors LLCVerify license
- Legacy Windows And Doors LLCVerify license
- Storm Tight Windows And DoorsVerify license