The SF Bay Peninsula’s Premier Choice for Replacement Windows & Doors 
QUALITY WORKMANSHIP
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.
ENERGY STAR
We have a wide selection of Energy Star replacement windows and doors that can save up to 15% on your heating and cooling costs and protect your fabrics from sun damage.
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.
