Orange County Window Replacement Knowledge
Sourced answers about windows, codes, costs and installation for Orange County homes.
Glass, Energy & Performance
4 articles
- Glass & Energy
Which California Energy Code edition applies to a window permit filed now
The 2025 edition of the California Energy Code (Title 24, Part 6) takes effect January 1, 2026 and applies to permit applications filed on or after that...
- Guides
What does a NAFS performance grade on a window label mean
A NAFS performance grade combines the performance class with a design pressure rating and a tested size.
- Guides
How to Verify a Window Contractor's License in California
California requires a licensed contractor for window replacement work over $500. Verification takes two minutes through the Contractors State License Board and should include license status, classification, bond and workers compensation coverage.
- Glass & Energy
Low-E Coatings, Argon Fill and Spacers: How Window Glass Performance Works
U-factor and SHGC are produced almost entirely by the glass package: the low-E coating, the gas fill, and the spacer. This page explains what each component does and how to read an NFRC label.
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