Windows are usually the weakest point in a home's thermal envelope, and solar control film works on the heat and light arriving through the glass. Reducing that gain can ease the load on cooling in summer and make sunlit rooms usable at times of day when they currently are not. Film also cuts glare and reduces UV, so the same treatment improves everyday comfort as well as the energy picture. It is applied to the glazing you already have, which makes it a far smaller job than replacing windows. Results vary by film, shade, orientation and the existing glazing, so identify what is in the frames before choosing.
Take a look at our other window tinting Altadena services.