Whether replacing windows or choosing windows and doors for your custom dream home, The Window Specialist will help - from start to finish.

With flexibility, power and precision, our new SmartLift® glass lifting machine provides a safe and economical way to lift, hold and install both residential and commercial glass.

Best Window companies in Oakland

Our Advantage

  • For 40 years, our owner-operated firm has provided premiere window products and installation for both small and large projects throughout the San Francisco Bay Area.

  • We've assisted over 20,000 satisfied customers - homeowners, builders, remodelers, contractors and property management firms.

  • Our wholesale division provides contractors and builders with a wide selection of products.

Responsive, Dependable, Experienced

  • Our project consultants will assure your project is completed in a time-effective manner to specifications and on budget.

  • We will listen to you and present appropriate options without high pressure sales tactics.

Design and Estimating Expertise

  • Our team provides responsive, hands-on, one-stop service.

  • We also offer custom hand crafted wood windows and doors that meet the most stringent historical preservation requirements.

  • Our products lead in energy efficiency from best-in-class companies - Fleetwood, Pella, Marvin, Amerimax and Simonton.

Product and Service Excellence


“The Window Specialist gave me excellent service and the installers did a fantastic job. The whole process from quote to finish was made very easy by Keith Perry, owner of the company.
Keith told me about the PACE Program, which finances your energy-efficient renovation project for up to 20 years and does payments through your property tax bill. I can do small payments over many years instead of going broke paying many thousands all at once!
Now I have fabulous new windows! Energy efficient - MUCH cooler in the summer, warmer in the winter - and so quiet! “

Barbara D., Oakland

I have done a great deal of business with The Window Specialist through my property management company.  I have found them to be an excellent company with skilled, trustworthy professionals doing the work.  For the past 15 years, we have referred clients to them and supervised the proposal, installation and payment process. We've always been glad we chose The Window Specialist. Their prices are reasonable, they always recommend the right product for the job, and do a great job installing it.

J. J. Panzer, San Francisco

“I worked with Jim on a bathroom window replacement. I found all of my interactions to be responsive, professional and high quality. From booking to installation, it was very smooth. The man who installed the window even cleaned up after-- a huge win from past servicemen I have had into my home. Would definitely use again.

Ashley T., Berkeley

“Highly recommend this business for honesty.  Jim came a long way to check out the problem of my windows.  Instead of trying to sell the windows as I originally asked, he just said the problem is not the windows, but the stucco and its water-proofing work.  He helped me with ways to identify the original window manufacturer so I could have the trim replaced and save money after fixing the stucco.  He even walked-thru and gave advice on other problems with our rental property.   Thank you Jim. “

Nam M., San Jose