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About Us
Proud Winner – Gold Award, 2025 DFW Favorites
Voted DFW’s Favorite Window Company
We’re honored to be named DFW’s Favorite Window Company, and it’s all thanks to customers like you. Whether you’re replacing old windows or starting fresh, our team is here to make the process simple, smooth, and stress-free.
Why Brennan?
When you are ready to upgrade your home, you need a reputable installer that you can trust. Since 1979, Brennan has offered top-quality service and installations to Texas homeowners.
We are a family-owned business built on trust. We have an A+ rating with the BBB and have been accredited since 1982. That means you can be confident that we’ll take care of you every step of the way.
Your Project Starts Here
Complete the form below and a member of our team will reach out to schedule a free project estimate. This can be in-person, on zoom, or by phone.