The SF Bay Peninsula’s Premier Choice for Replacement Windows & Doors Get A Quote

ABOUT US 2018-03-05T18:40:12+00:00


Family Owned Since 1971

Alexander Company is a family owned and operated business that was started in 1971 and has since served thousands of customers throughout the Bay Area. As a family business we take pride in our work and we are committed to provide the highest quality service to our customers.
– John and Jeff Alexander!

About Alexander Co., Window & Door
Installation in San Francisco CA

Offering Repair and Replacement
of Windows & Doors!

Alexander Company provides the highest quality replacement window and door installations. We do not sub-contract our installations!

Our products are installed by highly-skilled,
in-house craftsmen so that we can ensure your windows will provide outstanding performance for years to come.

“I am extremely happy with [Alexander’s] work. They were genuinely
concerned for my needs and very trustworthy and reliable.”

– Susanna T., Redwood City


It can be hard to know which businesses remain open (and which do not) as we face the current health crisis. But we have good news!

Alexander Company is 100 percent open for all of your window and door replacement needs.

Every one of our services remains fully available to you, including in-home consultations and installation.

Our employees have been meticulously trained in all recommended precautions and are employing comprehensive safeguards to ensure a completely safe environment for both our customers and staff.

We encourage you to call us today to discuss window and door options and set up a consultation.