Windows Replacement

Contractor in San Francisco and the greater Bay Area

San Francisco Windows Contractors Residential Windows Replacement

Windows Replacement Services

Have you ever wanted to replace your old, unattractive, inefficient windows, but didn't know where to start? Congratulations! You have come to the right place.

Greentech Industry Inc. distributes and installs only the finest quality replacement windows and window treatments. Our experienced and dedicated staff of San Francisco-based window contractors deliver unsurpassed workmanship and timely installation – for both replacement and restoration projects. Our windows will not only improve your home aesthetically, they will save you money and time! They’re both energy efficient and manufactured for ease of cleaning.

We offer extremely fast delivery and expert installation. Our windows are custom made specifically for your home and standard colors can be installed within two weeks!


San Francisco & Bay Area Services

In communities throughout San Francisco Bay Area GreenTech name has emerged as one synonymous with quality, integrity, and value. In our four decades of new home construction, we have consistently delivered on our clients desires and expectations. We are proud of the homes we have constructed: We are proud of the fact that we have paired homeowners with quality communities and first-rate homes; but more, we are proud that we have helped the dream of homeownership come true for nearly 500 families.

Our quality windows:

Come with Low Energy / Argon Gas (keeps your home warmer in the winter and cooler in the summer).
Include a tilt-in feature for easy cleaning.
Are extremely affordable and stylish.
Will modernize your home, adding curb appeal and increasing marketability.


If you take a closer look at our communities that we builded, you’ll recognize why our homes stand above the rest—distinctive, bright, contemporary, and cozy. Read testimonials from our current homeowners and you’ll understand the origins of our reputation–responsible, patient, diligent, and supportive. Explore the character and history of our vendor partners and you’ll see that they are as committed to your dream home as we are. 

From our family to yours, we thank you for exploring what GreenTech offers and, most importantly, delivers - Quality homes in top-notch communities. We look forward to making the home of your dreams become a reality, just as we have done for families throughout the last 22 years.


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