Your family-operated window and door shop located in Belmont, California, serving the San Francisco Bay Area.

In Stock Windows

In stock windows mean rock bottom prices.

Most of you want new windows for your home, and that's our specialty. However, if you already know what window you're looking for, why not see if a window in our warehouse already meets your needs? Give us a call and help us clear out space! You might just find the best window deal yet.

Window image: Andrighetto Residence

Choose Wisely

Choose the right windows for your budget and your home.

It's more important than ever to save money, save energy, and increase the value of your home, all while staying in your budget. #10 of 25 on HGTV's 25 Biggest Renovating Mistakes is choosing the wrong windows. We can help you decide on the right windows for your home.

Casement image: Suat Eman /

Why Windows Unlimited?

We have over 30 years of experience in the window and door industry in the San Francisco Bay Area. Read more about us on our about page.

Our customer service shines. We thrive on word-of-mouth recommendations and are a family operated business.

We are happy to answer any questions you have about pricing, products, or anything window related. Request a quote or simply send us an email.