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Comparisons here are built from published manufacturer documentation, code requirements and NFRC-certified performance data. We do not rank products or accept placement.
Both manufacture vinyl replacement windows widely used in Southern California. Milgard is a multi-material West Coast manufacturer sold through broad dealer and retail channels; Anlin is a California vinyl-only manufacturer selling exclusively through dealer-installers.
Reviewed by Technical Review Board
Vinyl frames offer far better thermal performance and no corrosion path; thermally broken aluminum offers narrow sightlines, large spans and rigidity. Non-thermally-broken aluminum cannot meet current Title 24 limits in most configurations.
Reviewed by Technical Review Board
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