Window and Door Replacement - Keller, TX | Brennan
  • Wesley J. from Frisco, TX
  • Even though I did not use their services I would highly recommend them. Their service was very prompt and complete. They worked with me in doing what I needed. I...
    Walter K. from Coppell, TX
  • We love our new windows! They are a dark charcoal color and they make the home look great. Scott Brennan showed us some great options and we loved working...
    Landra P. from Arlington, TX

Family Owned & Operated

Family Owned & Operated

Meet Our Founder

Since 1979, our founder Kerry Brennan has remained at the helm of our company. As a single father, Kerry puts honesty and integrity first and treats his employees and customers like family. He has maintained a full-service operation with everything in-house to ensure that his customers come first in every step of their remodeling journey.

Meet Our Family

We’ve got a team of friendly, caring, responsive individuals. Our team includes experienced craftsmen, product consultants, and a fully staffed office with folks here to help you at every step in your remodeling journey including after the job is done.

The Brennan Story

We've been in business since 1979. As we have grown, we've remained customer-focused and committed to your satisfaction. At the same time, our team has remained a tight-knit family. We have 25 full-time employees and enough install teams to ensure you are taken care of without sacrificing quality or trust.

Frequently Asked Replacement Window & Door Questions
What’s the window buying process like?

The window buying process is easier if you already have an idea of what type of windows you want. Consider how they should work and how you want them to look. Once you have an idea of what you’re interested in, you’ll schedule a meeting with a window consultant to discuss product options, measurements, and installation. After you sign a contract for your project your windows are ordered from the manufacturer and installation is scheduled after your windows are delivered.

LEARN MORE: 3 Things You Should Consider When Replacing Windows

What should I look for when buying replacement windows?

There are four key factors to consider when purchasing replacement windows; efficiency, warranty, installation, and quality.

LEARN MORE: Replacement Windows Checklist

Do you offer repair services?

We do not repair existing doors or windows. If you would like a free estimate for replacement windows or doors, please give us a call.

If you are an existing client and are having an issue with a product we’ve ordered and installed please contact our service department for assistance. 

LEARN MORE: Dealing with Sticking Windows and Doors.

What do windows cost?

It’s difficult to give anyone a general price estimate because there are many factors that affect the cost of a window. Unless you’re purchasing stock windows from a big box store, window costs will vary based on the manufacturer, quality, materials used, style, and the type of glass package included. We have included a pricing example for Andersen 100 Series windows in the post linked below.

LEARN MORE: How Much Do Andersen 100 Series Windows Cost? 

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