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Serving the Bay Area Since 1966


Designer Colors

Huge Choice of Styles

Top Manufacturers

Quality Installation

Excellent Warranty


The Difference is Clear!


Since our inception in California in 1966, Armstrong has been committed to the improvement, beautification, and preservation of Bay Area homes and commercial and institutional buildings. That’s over 50 years of experience installing windows in the Bay Area, including San Jose, San Francisco, Oakland, Fremont, Santa Rosa and Sunnyvale!

Armstrong has a brilliant work ethic, coupled with superior technical knowledge. We have always been dedicated to using only the highest quality materials and modern equipment for replacing your old inefficient windows.

We have maintained our position of leadership as San Francisco’s top window replacement experts by adhering tenaciously to one of the most fundamental principles of all business transactions: listening to and pleasing our customers! 

“Designer colors – huge choice of styles – top manufacturers and quality installation – Armstrong Windows offers it all! All that – plus over 50 years of experience in window replacement has made us the Bay Area leader!”


Having installed and warrantied tens of thousands of jobs on homes and commercial buildings throughout Northern California, Armstrong has compiled a knowledge base unparalleled in the property improvement industry. 

Over 50 Years Experience

As a multi-generational family business, we deeply appreciate the values and hard-won knowledge we’ve inherited. This knowledge is grounded in millions of applicator hours and represents Armstrong’s collective experience, helping to ensure that we are consistently meeting the standard set by our founders.

Family Owned

At Armstrong, we ensure to use the most cost effective materials available without compromising long-term performance. We guarantee that those materials are installed by professionals who take pride in their work! You will always receive professionally installed materials, optimized for both price and long-term ‘life cycle’ performance.

Top Manufacturers & Quality Installation

With Armstrong you have the assurance and peace of mind knowing that your installation will be covered by one of the best warranties in America. Our replacement windows and doors carry up to a limited lifetime manufacturer’s warranty.  

Excellent Warranties

Armstrong’s replacement windows are specially designed to meet our tough standards and the recommendations of our customers. Looking for replacement windows?  Look to Armstrong. We’ve been installing replacement windows in the Bay Area, including San Jose, San Francisco, Oakland, Fremont, Santa Rosa and Sunnyvale, for more than 50 years. And now we’re offering our exclusive line of Armstrong replacement windows, one of the most beautiful, feature-rich windows available at any price. They’re also available in designer colors, easily coordinating with your home’s existing colors.


Finding your ideal window replacement contractor in San Francisco and the Bay Area has never been so simple. Not only are our replacement windows beautiful, but they are one of the most feature rich vinyl windows available at any price. Unlike lesser models on the market, that offer only white or tan frames, Armstrong offers designer colors, making coordination with your existing home colors a snap.

Armstrong’s replacement windows include all or some of the following features. Ask your field representative about the features Armstrong recommends for your home.

  • Neat or Sun Clean™ Easy Cleaning Glass for easier cleaning
  • High-Performance Spectrally Selective Glass
  • Limited Lifetime Manufacturer's Warranty (see specific warranty for details)
  • Multi-chambered fusion welded and sealed frame technology
  • Aller-Guard Anti Pollution / Anti-Allergy weather-stripping
  • Super Spacer for additional energy efficiency
  • Double locks for added security
  • Heavy Duty Marine Brass rollers for smoother operation
  • Double strength glass as in commercially rated windows



  • Aller-Guard forms a resistant seal that helps to reduce outdoor dust and dirt particles from entering doors and windows.
  • It’s patented and also tested to resist mold and mildew. Reducing the infiltration of these allergens and pollutants provides for a cleaner, healthier and more comfortable indoor environment.
  • Aller-Guard weatherstripping resists allergy-aggravating pollen, fungi, mold, dust, dirt and bacteria.



In a photocatalytic process, ultraviolet (UV) light from the sun energizes the Easy Cleaning glass to help slowly break down and loosen dirt. Since UV light is abundant even on cloudy days or in shaded areas, this process works non-stop throughout the day.

The coating also has a hydrophilic property that makes water droplets spread out, or sheet, across the surface of the glass. When rain or a light spray from a garden house hits the window, the water carries away the loosened dirt. This sheeting action, which works throughout the day and overnight, helps the window dry quickly with minimal spotting or streaking.


  • Want a low-maintenance replacement window with the appearance of a traditional wood window? We’ve got them – Infinity Ultrex Fiberglass windows from the experts at Marvin Windows and Doors!
  • All Infinity® from Marvin windows are made from Ultrex – a fiberglass material so tough, you’ll never have to worry about replacement windows again! And all Infinity® from Marvin windows are essentially maintenance free.
  • You’ll also find multiple colors and Everwood® finishes available in these energy-efficient windows. Plus, you’ll never have to paint or stain your windows again!



Obtain all necessary permits. Homeowner to reimburse Armstrong for cost of permit

Inspect area

Area is inspected to determine that all furniture and special items are out of the way


Re-measure all openings to provide a custom fit

Remove existing windows

Prepare opening for new windows

Install new windows

Options include vinyl, wood and fiberglass

Remove existing wood stops

Replace as needed, plumb, square and shim new windows

Pack perimeter of openings

Pack with caulking and material as needed

Start enjoying your new windows!


Satisfied does not describe my satisfaction, neither does excellent. This is A+.


I couldn’t be more pleased with the quality of the work, the attention to detail, the always well kept workplace, and the friendliness and hard work of Modesto and his crew. He turned a nice house into a showcase.

Steve Sansweet – Petaluma, CA

Was the work completed as promised, on time, and with no expected problems? Yes, one person even came back in the evening to make sure everything was ok.

Mr. and Mrs. George Taylor – San Jose, CA

Everybody was very polite and prompt in their responses; Also questions were answered without hand-offs, even if someone else had the actual answer. Definitely, put the customer first.

Roxy Jones – Orinda, CA

Where To Find Us

4575 San Pablo Avenue, Emeryville, Ca, 94608, USA



Call: 855-777-1234

4575 San Pablo Avenue

Emeryville, Ca

94608, USA

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