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:
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, LoĒ³-366, 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.