Gold - Window Company

Voted DFW’s Favorite Window Company 2026

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.

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Trusted by DFW Homeowners for Over 45 Years

As you begin your home improvement journey, you want a reputable installer that you can trust with your home. At Brennan, we realize that every home and project is unique. We’re here to serve you and help you find the perfect solution for your windows and doors.

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Let’s give your home a new look.

We 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’ve got the perfect products for your design.

We offer a wide range of beautiful windows and doors to suit your design. All of our window partners offer ENERGY STAR rated solutions.

Affordable options for new construction projects.

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.

Window and Exterior Door Replacement Services in DFW

Window Replacement

Boost your home’s energy efficiency and aesthetic appeal with a wide selection of replacement windows.

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Exterior Door Replacement

Secure and stylish exterior doors that are sure to make a lasting impression and improve the value of your home.

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Design-Build Windows & Doors

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.

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New Construction & Supply Only Products

Quality and competitively priced solutions for architects, builders, contractors and DIYers.

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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.

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Your Project Starts Here

Complete the following form and a member of our team will reach out to schedule a free consultation. Learn about your product options, the benefits of working with an established company like ours, and get 1-4 estimates to compare products by price.

Brennan Locations

Service Area

Windows & Doors for Texas Homeowners

Brennan Enterprises is a Texas based company. We currently offer our services to homeowners in and near the Dallas-Fort Worth Metroplex and the Greater Houston area.

Voted DFW’s Favorite Window Company 2026

Trusted by DFW Homeowners for Over 45 Years

Let’s give your home a new look.

We’ve got the perfect products for your design.

Affordable options for new construction projects.

Window and Exterior Door Replacement Services in DFW

Window Replacement

Exterior Door Replacement

Design-Build Windows & Doors

New Construction & Supply Only Products

Why Brennan?

Your Project Starts Here

Helpful Resources

Residential Windows 101

Celebrating 47 Years of Brennan Enterprises

Folding, French, or Sliding; Choosing an Exterior Patio Door

Service Area

Windows & Doors for Texas Homeowners

Brennan Enterprises Headquarters

Frequently Asked Replacement Window & Door Questions

How long does a door installation take?

How do I prepare my home for window installation?

Are you really going to show me pricing if I fill this out?

What if I want to expand an existing window or door?