A Leader in Northern California for replacement windows and doors.

We are a reliable, fully licensed & insured, independent business. We have installed thousands of homes with exclusive name brand replacement windows & doors. We offer a huge selection of standard/custom window styles, along with a variety of colors and sizes to meet your homes specific design needs. We carry a variety of vinyl, wood, and fiberglass products. The majority of our window and door products are ENERGY STAR® qualified, which will save you money in energy costs!

SGK Windows will work on projects of all sizes, and with multiple guarantees, we stand by every project. We're also a proud member of the Better Business Bureau serving Silicon Valley.

Feel free to contact us with any questions you may have about replacement or new construction windows and doors.