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Bestoff Windows

Window Installation & Replacement

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Services

Bestoff Windows & Construction is a Class-B General Building Contractor; we are licensed to perform significant structural repairs and additions. We specialize retrofit installation of dual pane, energy-star certified, vinyl windows. Bestoff Windows deals directly with all the following window manufacturers:

Our experienced window installers make the installation process smooth and efficient, to satisfy our customers with a well done project. We maintain a huge referral base all over the East Bay Area and it is probable that your neighbors have had their new energy efficient windows installed by Bestoff Windows.

We offer free in home estimates done by the business owner, Sergey. No sales pressure guaranteed, get a great deal when ordering windows for your whole property. Although there are exceptions, our service is primarily focused in these counties:

Bay Area Window Replacement

Window Replacement in Solano County

Window Replacement in Contra Costa County

Window Replacement in Alameda County

Bestoff Windows guarantees to all of our customers a superior service and post-installation customer support. Our window installers have many years of replacing windows and installing doors under their belt and provide the highest quality, most professional, installations taking care to make sure your home is treated with respect and is as clean as it was when they entered.

Please note that we do the all new window replacement projects only: meaning the replacement of old single pane windows with brand new, energy efficient, dual pane, Lodz-366, vinyl windows. Retrofit installation for new windows is recommended as the most cost efficient way to get the project done. Nail fin installation is available if applicable, only.

Please note: 5 windows is our minimum order policy.

Schedule a free estimate!

We’ll tell you how much it will cost and how long it will take.

Schedule Today

Bestoff Windows Inc carries Class-B General Building Contractor license CSLB #992647. We specialize in new installation and retrofit window replacement.

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Opening Hours
Monday 9:00 AM – 5:00 PM
Tuesday 9:00 AM – 5:00 PM
Wednesday 9:00 AM – 5:00 PM
Thursday 9:00 AM – 5:00 PM
Friday 9:00 AM – 2:00 PM
Saturday Closed
Sunday Closed
Bestoff Windows Inc.
1000 Detroit Ave Suite #S
Concord, CA 94518
Get Directions
(925) 457-9026
sergey@bestoffwindows.com

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