Contact Cornerstone Windows
Call 310-325-4700
Our Showroom
Cornerstone transforms homes with our large selection of:
- Windows: High quality vinyl and fiberglass replacement windows
- Sliding and swinging patio doors
- Exterior Entry Doors
Our Cornerstone Showroom is Open
- Monday-Friday: 9:00 a.m. – 5:00 p.m.
- Saturday: By appointment only
- Sunday: Closed
Contact Us for a Free In-Home Estimate
At Cornerstone, our expert estimators, office personnel, and installers are committed to providing skilled and satisfying service. We feature competitive pricing on all of our highly crafted products. Increase the beauty, value, security and improve energy efficiency of your home with new windows & doors. Please submit your contact form for a free, in-home estimate. We’re also available on weekends by appointment only.
Location: 3545 Lomita Blvd, Unit A, Torrance, CA 90505
