Window Replacement and Installation in San Rafael, CA

Does your home need its windows replaced? We’ve been replacing home windows in San Rafael since 1996 – a lot of your neighbors have likely had their windows replaced by us. Our high sale volume ensures we get the biggest discounts from window manufacturers, and we bring this price cut straight to our customers; ask […]

Window Replacement and Installation in Martinez, CA

If you are in need of new home windows in your Martinez, CA home Bestoff Windows will handle the job. We’ve done many jobs in Martinez and are happy to provide you with our references. All customers are 100% satisfied, this is why we have an A+ rating from the Better Business Bureau. For window […]

Window Replacement and Installation in Oakland, CA

Need your home windows replaced in Oakland, CA? No problem; Bestoff Windows is the top window company in Oakland. Rated A+ by BBB, over 16 years in the business, lifetime warranty, and lowest price guarantee.

Window Replacement and Installation in San Francisco, CA

If your San Francisco home needs new windows we are the right company for you. Our customer satisfaction is unparalelled, we’re  rated by the Better Business Bureau. We carry a wide selection of window brands which are all energy efficient, energy star certified, and meet or exceed all ARRA specifications. We’ve been working in SF […]

Window Replacement and Installation in San Ramon, CA

Does your San Ramon home need its windows replaced? We offer professional installation of quality, energy efficient, vinyl windows. We’ve done hundreds of jobs in San Ramon, CA – it is highly likely that your neighbors have had their windows replaced by Bestoff Windows. Due to the high volume of installations we’ve performed in San […]

20 Great Tips for Window Replacement

20 Tips for homeowners on how to choose the best window replacement company.

Simonton Receives Highest Ranking in JD Power and Associates

For the second time in three years, Simonton Windows® has ranked highest in satisfying builders and remodelers with residential windows and patio doors. The J.D. Power and Associates/McGraw-Hill Construction 2008 Builder and Remodeler Residential Window and Patio Door Satisfaction Study, SM has ranked Simonton as the leader in the study results.


Terminology pertaining to window installation industry.

Bestoff Windows & Construction

Bestoff Windows & Construction is a family-owned business. Founded in 1999 we have quickly gained ground to become one of the top Bay Area window installation companies. Click to find out more…

Different Types of Windows

Some windows allow for better ventilation, and some types have a larger glass area for allowing in more daylight. Other designs may be easier to operate in hard to reach places. Any choice of window design will need to accommodate differing factors, depending on the house. Some windows are hinged, while some types slide. A […]