Our commitment to making cornerstonewindows.com usable for everyone.
Last updated: October 24, 2026
Cornerstone Windows & Patio Doors is committed to making this website usable by everyone, including people with disabilities. We believe every visitor should be able to learn about our services, see our work, and request a free estimate with ease.
We aim to conform to the Web Content Accessibility Guidelines (WCAG) 2.1, Level AA — the standard widely referenced under the Americans with Disabilities Act (ADA) and California’s Unruh Civil Rights Act for website accessibility.
Accessibility is an ongoing effort, not a one-time project. Despite our best efforts, some content may not yet be fully accessible — for example, certain photographs or content from third-party providers that we do not control. We are working to address issues as we find them.
If you have difficulty using any part of this website, or you notice something we can improve, please tell us — we take this feedback seriously and will work with you to provide the information or service you need through an alternative method, such as over the phone.
Phone: (310) 325-4700
Email: info@cornerstonewindows.com
When reaching out, it helps to include the web page you were on and a brief description of the problem. We aim to respond within two business days.