Over 14,000 Satisfied Customers
Serving California Since 1982

Welcome to Cal Comfort Insulating Windows, Inc. on the web! Since 1982 we’ve been making homeowners and business owners happy with our windows and doors. We feature only the best manufacturers and install our windows and doors exactly to specification for a product that will perform for a lifetime and beyond. In fact we guarantee our work for a lifetime!

Years of construction experience in the home remodeling and building industry also set us apart from the rest of the industry. Our experience is invaluable in assisting you with a look and feel that’s all your own. Especially in some of the more extensive remodeling applications. First we were builders then we became window and door specialists. Why? Because every building or remodeling project involved at least one window or door. We are able to blend general contractors ability with window sales and installation.

Technology moves at lightening speed, the window and door industry is no different. We were one of the first companies to utilize vinyl windows. And we are one of the few companies that currently offer fiberglass windows. Plus, we have a lovely showroom so you can touch and test the quality of many of our windows and doors.