Why This Matters
Low-e glass was a major step forward in window efficiency. But it has limits. Low-e retrofit film extends that performance further, adding a second emissivity layer that existing glass lacks.
Near Chochmat HaLev in Berkeley, west-facing windows at low afternoon sun angles drive the highest interior temperature increases. This is especially problematic for single-family home installations, which the most common residential application; window film reduces heat gain and protects furnishings.
California's Title 24 energy code sets minimum window performance standards for new construction. Window film can bring older homes up to — and beyond — those standards at a fraction of the cost of window replacement.
The Solution
Most residential window film installations are completed in a single day. The film cures fully within 30 days, after which performance is at its rated specification.
Perforated film solves the privacy-versus-light tradeoff for street-facing rooms. The micro-hole pattern maintains outward visibility from inside while blocking the view from outside during daylight hours.
Reduces glare and diffuses focused solar energy to protect interiors and improve comfort.
Climate & Solar Performance
Properties near Chochmat HaLev in West Berkeley, Berkeley experience afternoon heat gain conditions that make window film particularly effective. Anti-Reflective Window Film is specifically engineered to address this solar exposure.
Effective against afternoon heat gain
Rated for single-family home protection
Professional installers available in Berkeley
10–15 year manufacturer warranty
Installation Guide
Professional installation typically takes 2–4 hours for a standard residential job. The installer will clean the glass, apply the film with a slip solution, squeegee out all air pockets, and trim to a precise fit.
Install time
30–45 min
Per window
$150–$400
Cure time
30 days