The most trusted contractors for skylight and sun tunnel installation in the S.F. Bay Area
The most trusted contractors for skylight and sun tunnel installation in the S.F. Bay Area
For over 30 years, G.T. Builders has served clients all throughout the S.F. Bay Area ranging from general construction jobs to the installation and replacement of countless skylights from start to finish all over the S.F. Bay Area. Our team of experts is a small one - being a family owned and operated business gives our clients confidence knowing that our team only employs a select few professionals who will enter your home over the course of any job we do for you. G.T. Builders is certified by VELUX, the world‘s leading skylight manufacturer.
Interested in adding a skylight to your home or business? We hope to answer and questions you might have along the way and if we don’t have the exact info you are looking for feel free to send an e-mail or call us anytime with any further inquiries.
A skylight is similar to a window installed in a roof or ceiling to allow natural light and/or ventilation into the space below. They can be fixed (non-opening) or operable (venting).
Skylights can be installed anytime. We do most of our work from inside the house and save cutting the hole in your roof until the very end. When it comes to a replacement opposed to an installation, we suggest that whenever the home owner plans to get a new roof put on their home, it is wise to coincide replacing any old skylights during that time. We regularly work alongside various roofing companies whilst they do their thing, we do ours. Not having to pull up any shingles is ideal for any job.
On average, an installation from start to finish takes about 2-3 days. There are many factors that must be considered throughout the course of a job, including type of ceiling, where the skylight is being placed and the size of the skylight.
Title 24, also known as the California Building Energy Efficiency Program, became effective on January 1st, 2026. It’s adv my
VELUX is ENERGY STAR certified with Low E-3 coated glass. The two layers of glsss are filled with argon gas and allows insulation and regulates indoor temperatures, reduced UV exposure, and minimizes heat loss during the cold months and heat gain during summer.
A typical skylight replacement takes about thirty minutes to an hour to complete. There are the occasional unknown factors which can slightly prolong the process such as having to trim the sheetrock or other minimal tasks that must be done in order to correctly fit the new product but the time almost never exceeds an hour if it is a single skylight replacement.
If properly installed and flashed, there is no reason a skylight should leak. If moisture is visible from within the unit then it has likely been compromised and should be replaced to avoid further damage. In some cases a client may believe there to be a leak from a skylight only to find the roof to be the true source of the leak however the water typically runs towards the lowest point-being a skylight.
In most Bay Area cities, yes, permits are typically required for structural roof work. G.T. Builders handles any permits and business licenses that may be required by a city during the course of an installation.
Absolutely! Not only can you purchase a skylight directly from a manufacturer, you can also contact a window/ skylight retailer near you. A-Z Skylights and Windows has been our primary skylight spot for the majority of our time being in business. With the fastest arrival times and extensive product inventory, we recommend giving checking them out for yourself. Here is their link below.
We install a full range of products with a wide variety of features and functionality. Brands such as VELUX and WASCO for example, carry options in both fixed and vented skylights (manual or electric), tubular, and custom glass units and each product ensures the same energy efficiency, durability, and leak-free performance. For more details and information regarding specific products, see our “Find Your Skylight“ page or the “Links“ page to check out some of the product manufacturers and to find a retailer near you.
Yes, G.T. Builders covers almost all moderate roofing work necessary for the completion of a job as well as the essential framing, drywall, texture, and painting. However, if it is an entirely new roof you are looking to replace, we lave that up to any of the trusted roofing experts we have worked with over the years.
Yes. Not only do we offer a year long warranty on the work we do, but VELUX also offers a 10 year warranty on all of their products.
Expect a response within 48 hours. Please note that we cannot give a valid estimate until one of our team members has visited the job location in person in order to make an adequate assessment of any kind. Thank you.
Privacy Policy
Last Updated: December 5th, 2025
GT Builders Skylights (“we,” “our,” or “us”) is committed to protecting your privacy. This Privacy Policy explains how we collect, use, disclose, and safeguard your information when you visit our website.
By using our site, you agree to the terms of this Privacy Policy.
1. Information We Collect
a. Personal Information You Provide
When you submit a contact form or request a quote, we may collect:
b. Automatically Collected Information
We may automatically collect:
This data helps us improve website performance and user experience.
2. How We Use Your Information
We use collected information to:
We do not sell your personal information.
3. Sharing Your Information
We may share your information only in the following situations:
We do not share your information for advertising by third parties.
4. Cookies and Tracking Technologies
Our website may use cookies to:
You can modify your browser settings to decline cookies if preferred.
5. Data Security
We take reasonable technical and organizational measures to protect your information from unauthorized access, loss, or misuse.
However, no online transmission is ever 100% secure.
6. Your Choices
You have the right to:
To make a request, contact us using the information below.
7. Third-Party Links
Our website may contain links to third-party websites.
We are not responsible for the content or privacy practices of these external sites.
8. Children’s Privacy
Our services are not directed to individuals under 18.
We do not knowingly collect information from children.
9. Updates to This Privacy Policy
We may update this Privacy Policy from time to time.
Any changes will be posted on this page with a new “Last Updated” date.
10. Contact Us
If you have questions about this Privacy Policy or want to make a privacy-related request, please contact:
GT Builders Skylights
Phone: [Insert Phone Number]
Email: [Insert Email Address]
Business Address: [Insert Business Address]
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