Cal Comfort Insulating Windows, Inc. has been providing the highest quality, most energy efficient windows and doors in California since 1982. We combine solid craftsmanship, experience and installation ingenuity into every replacement window and door project we tackle. Proudly serving the greater Manteca, Modesto, Merced, Tracy, Turlock, Oakdale, Riverbank, Salida, and foothill areas.

Cal Comfort Insulating Windows, Inc. began in 1982 as an energy saving, weatherization and insulation company. East Coast style storm windows were what we installed in the early '80's. As the industry evolved and modernized with dual glazing, an affordable, energy efficient solution, Cal Comfort became the experts in replacing single glazed windows all over Central California. Since the beginning, Cal Comfort's mission is to provide our customers with the latest advances in window and door product improvements, offering the most cost effective, attractive and durable windows and doors in the industry.

The door to your home should be just as inviting and practical as your windows. Today's doors offer beauty, security and long-lasting strength. We offer both wood and fiberglass materials, in a wide variety of designs, backed by lifetime warranties. We can install every type of doors we sell, as well as provide custom stains and paint. Patio doors set the tone from the outside to the inside of your home. The right patio door can anchor the design theme of your room, plus add energy efficiency, convenience and safety.

What single improvement can you make to your home that will immediately add value and lower your monthly expenses? If you guessed beautiful new dual pane vinyl, fiberglass or wood windows installed by Cal Comfort Windows, you guessed right!

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