Avoid These Common Mistakes When Installing Replacement Windows

When you’re looking to upgrade the windows in your home, there’s no doubt that Plano, TX replacement windows can be a great investment. Whether you’re looking for improved energy efficiency, better noise reduction, or just an aesthetic upgrade, you’ll want to make sure that you get the job done right. Unfortunately, installing replacement windows isn’t always as easy as it sounds. To make sure that your installation goes off without a hitch, here are some common mistakes that you’ll want to avoid.

Measurement Errors

One of the most common mistakes made when installing replacement windows is getting the measurements wrong. You’ll want to make sure that you measure the width, height, and depth of your existing window openings before ordering your replacements. Even the slightest variation can cause major problems when the windows arrive.

Forgetting to Order the Right Accessories

When you’re shopping for new windows, it’s easy to forget that you’ll need more than just the windows themselves. Make sure that you also order all the necessary accessories, such as window stops, jamb liners, and weatherstripping. Not having the right accessories can lead to a sloppy installation that won’t provide the energy efficiency or security you’re looking for.

Improper Installation

Installing replacement windows isn’t something that you should try to do yourself. If you don’t know what you’re doing, you could end up with an improper installation that won’t provide the security or energy efficiency you’re expecting. Make sure that you hire a qualified professional to ensure that the job is done right.

Using the Wrong Caulk

When you’re installing replacement windows, you’ll need to use caulk to fill in any gaps and ensure a proper seal. But not all caulks are created equal. Make sure that you use a good quality, exterior-grade silicone caulk that won’t crack or shrink over time.

Not Cleaning the Window Sills

Before you begin installing your new windows, make sure that you clean the window sills and the surrounding area. This will help to ensure that the new windows fit properly and provide a proper seal.

Not Replacing the Flashing

Flashing is an important part of any window installation. It helps to prevent water from entering your home and causing damage. If your existing flashing is old or damaged, make sure that you replace it before installing your new windows.

replacement windows in Plano, TXIncorrectly Installing the Window Stop

The window stop is an important part of the installation process. It helps to prevent the windows from being opened too far and potentially falling out. Make sure that you install the window stops correctly and securely to ensure the safety of your home.


When it comes to installing replacement windows, these are a few common mistakes that you’ll want to avoid. Make sure that you measure, order the right accessories, hire a qualified professional, use the right caulk, clean the window sills, replace the flashing, and install the window stop correctly. Doing so will help to ensure that your Plano, TX replacement windows are installed properly, providing you with the energy efficiency, security, and aesthetic upgrade you’re looking for.

About Us

Lynn Foster founded Foster Exteriors in 1987 in the Dallas/Ft. Worth Metroplex area.  In 2007, after 20 successful and award winning years, our company became Foster Exteriors Window Company, specializing in energy efficient replacement windows and doors.

Foster Exteriors Window Company

1350 N Buckner Blvd
#216 Dallas, TX 75218

(214) 319-8400

[email protected]

M-F (8:30am – 5:00pm)
Evening and Weekend appointments available

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