How Cornerstone Windows & Patio Doors collects, uses and protects your information.
Last updated: October 24, 2026
This Privacy Policy explains how Cornerstone Windows & Patio Doors (“Cornerstone,” “we,” “us,” or “our”), a Torrance, California replacement window and door company (CSLB License #565275), collects, uses, and protects information when you visit this website (the “Site”) or contact us about our services.
Information you provide. When you request an estimate, call us, or use our contact form, we collect the information you choose to share: typically your name, email address, phone number, service address, and details about your window or door project.
Information collected automatically. Like most websites, our hosting and analytics tools automatically receive certain technical information, such as your IP address, browser type, device type, pages visited, and the date and time of your visit. This information is used in aggregate to understand how the Site is used and to keep it secure.
We do not ask for, and you should not submit through the Site, sensitive personal information such as Social Security numbers, financial account numbers, or health information.
We do not sell your personal information, and we do not share it with third parties for their own marketing purposes. We share information only with:
The Site may use cookies and similar technologies to keep the Site working properly and to measure visits through analytics services. You can control or delete cookies through your browser settings; the Site will still work with cookies disabled. Because there is no industry standard for “Do Not Track” browser signals, the Site does not currently respond to them.
California residents may have the right under California law to request access to the personal information we hold about them, to request that we correct or delete it, and to be free from discrimination for exercising those rights. To make a request, contact us using the information below. We will verify your identity before acting on a request and will respond within the time required by law.
We keep inquiry and project information only as long as needed for the purposes described above, including warranty service, and as required by law (for example, contractor record-keeping requirements). We use reasonable administrative and technical safeguards to protect your information, though no method of transmission or storage is completely secure.
The Site is intended for a general audience and is not directed at children under 13. We do not knowingly collect personal information from children.
The Site may link to other websites, such as product manufacturers. Their privacy practices are their own; we encourage you to review their policies.
We may update this Privacy Policy from time to time. The “Last updated” date at the top of this page shows when it was last revised. Material changes will be posted on this page.
Cornerstone Windows & Patio Doors
Torrance, CA
Phone: (310) 325-4700
Email: info@cornerstonewindows.com