Window Replacement Near Westlake, Tx
  • It gives us great pleasure to inform you that we are most satisfied with the quality of your product and services received from your two staff, Howard and Butch, who...
    Chwee C. from Denton, TX
  • I encourage all homeowners to seek out estimates AND options from Home Depot and Lowe's before contacting Brennan. Watch how the the competition "treats" you... then, you will without a...
    Robert J. from , TX
  • Great response and great service....
    Dave S. from Westlake, 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 I need replacement windows?

Many homeowners choose to update their windows for aesthetic reasons but there are other reasons why you would need to update your window. If you’re dealing with some of these problems, you should buy replacement windows:

  1. Condensation between the glass.
  2. The windows are difficult to open or close.
  3. You’ve spotted rot around or on the window.

LEARN MORE: 5 Reasons to Replace Your Windows

How are replacement windows measured?

We take multiple horizontal and vertical measurements of the window to determine the smallest points of the window as well as the window depth. That allows us to order a properly sized window that’s not too big for the opening and not small enough to leave big gaps around the window frame.