The rules for using cornerstonewindows.com.
Last updated: October 24, 2026
These Terms of Use (“Terms”) govern your use of this website (the “Site”), operated by Cornerstone Windows & Patio Doors (“Cornerstone,” “we,” “us,” or “our”), a licensed California contractor (CSLB License #565275) based in Torrance, California. By using the Site, you agree to these Terms. If you do not agree, please do not use the Site.
Content on the Site — including service descriptions, product information, photographs, and project examples — is provided for general information about our replacement window, patio door, and entry door services. It is not a binding offer. Product availability, specifications, and manufacturer warranties can change without notice.
Requesting an estimate through the Site or by phone does not create a contract. Pricing discussed during a consultation is an estimate only. All work is performed under a separate written home improvement contract that complies with California law, and the terms of that signed contract — not these Terms — govern any project we perform for you.
You agree not to misuse the Site, including by attempting to gain unauthorized access, interfering with its operation, scraping or harvesting data, submitting false or misleading inquiries, or using the Site for any unlawful purpose.
The Site and its content — including text, photographs, graphics, and the Cornerstone name and logo — are owned by Cornerstone or used with permission, and are protected by copyright and trademark law. You may view and print pages for your personal, non-commercial use; any other use requires our prior written permission. Manufacturer names and logos referenced on the Site belong to their respective owners.
The Site may link to third-party websites, such as product manufacturers. We do not control those sites and are not responsible for their content or practices.
The Site is provided “as is” and “as available,” without warranties of any kind, express or implied, including accuracy, completeness, or uninterrupted availability. This disclaimer applies to the Site only — it does not limit or modify the written workmanship and product warranties provided under a signed installation contract.
To the fullest extent permitted by law, Cornerstone will not be liable for any indirect, incidental, special, or consequential damages arising from your use of the Site. Nothing in these Terms limits liability that cannot be limited under California law, or your rights under a signed contract with us.
You agree to indemnify and hold Cornerstone harmless from claims arising out of your misuse of the Site or violation of these Terms.
These Terms are governed by the laws of the State of California. Any dispute relating to the Site will be resolved in the state or federal courts located in Los Angeles County, California.
We may revise these Terms from time to time. The “Last updated” date above shows the current version. Continued use of the Site after changes are posted constitutes acceptance of the revised Terms.
If any provision of these Terms is found unenforceable, the remaining provisions remain in full effect.
Cornerstone Windows & Patio Doors
Torrance, CA · CSLB License #565275
Phone: (310) 325-4700
Email: info@cornerstonewindows.com
