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.

SATISFIED CUSTOMERS
“I am extremely happy with [Alexander’s] work. They were genuinely concerned for my needs and very trustworthy and reliable.”
– Susanna T., Redwood City

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.

San Francisco Door & Window Repair Before & After Pictures

Quality Workmanship from Alexander Co.

PLEASE CLICK ON ANY PICTURE BELOW

TO SEE THE BEFORE AND AFTER COMPARISONS.