We're proud to offer professional window and door sales and installation services to homeowners in Westlake. We've worked in your community in the past and would love to be of service to you and your neighbors. With our large selection of windows and doors, you are sure to find something that you will love. If you aren't sure where to begin, our knowledgeable staff can help you. When you're ready to start your project give us a call, we look forward joining you on your home improvement journey.
Free EstimateWe offer the best home improvement experience for homeowners. We're a full-service company that handles the entire process. We'll make sure your window or door remodel runs as smoothly as possible so you can get back to enjoying your home. You won't notice we were ever there.
We offer a wide range of beautiful windows and doors to suit your design. All of our window partners offer ENERGY STAR rated solutions.
Whether you are building a single home or an entire neighborhood, we have the windows your clients will love. Choose from a variety of high-quality and energy-efficient products.
Boost your home’s energy efficiency and aesthetic appeal with a wide selection of replacement windows.
Secure and stylish exterior doors that are sure to make a lasting impression and improve the value of your home.
Whether it’s a patio enclosure or wall-to-door conversion our expert team can handle any transformation. Simply put, you dream it, we build it.
Quality and competitively priced solutions for architects, builders, contractors and DIYers.
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.
Landra P. from Arlington, TX
Jay S. from Frisco, TX
Dora S. from Northlake, TX
Brian B. from Southlake, TX
Joel T. from Grapevine, TX
Complete the form 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.
Yes, we’ve worked with trusted financing partners to put together flexible financing plans that work best for you and your family.
We’re local! Our headquarters is in Arlington, Texas, close to where we were founded. Since 1979, we’ve worked with homeowners across the Texas Golden Triangle. We’re not a national brand, franchise, or private equity–backed. Brennan is a true Texas treasure and we intend to stay that way for generations.
Yes! We bring them to your consultation so you can see your options up close.
We understand that people have busy schedules, and finding time for everyone to attend an appointment can be challenging. That’s why we don’t require all decision-makers to be present for a consultation. However, having everyone involved can make the process more efficient, as it ensures preferences, questions, and decisions are addressed upfront. If coordinating schedules isn’t possible, we’ll work with you to provide the necessary information in a way that suits your needs.