SF Peninsula’s Provider for Replacement Windows, Doors & Skylights Since 1971
Our honest, and highly trained service department is committed to providing each and every one of our door and window customers with complete satisfaction, no matter how large or how small the job.
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Family-Owned 50+ Years
SF Peninsula Home Experts
Certified Installers
No Subcontractors Ever
Showroom Open Mon–Sat
No Appointment Needed
Highly Rated by Homeowners
for Stress-Free Upgrades
SF Peninsula Replacement Windows & Doors Experts.
We offer high-quality windows and doors from top brands, with a wide range of styles and materials to fit every home.
Visit our Burlingame showroom to see our selection and speak with an expert today.
Brands We Carry
About Us
Alexander Co. is a family-owned, award-winning window and door provider proudly serving the SF Peninsula for over 50+ years.
- No subcontractors – all work done by our team
- AAMA-certified installers for trusted, professional installations
- Diamond Certified dealer & BBB A+ accredited
- Award-winning local provider recognized for excellence
- Customer-trusted – over 100 reviews and counting
