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Finding the best windows on the market is only half the battle when it comes to window replacement. Properly installed windows will last longer, better retain their quality, and raise the value of your home rather than causing unnecessary damage to it. Unfortunately, many “professional window installers in the GTA” aren’t properly trained, or rush to get the job done quickly and end up making mistakes. During the window installation process, even the smallest mistake can sometimes lead to serious damage to your home and/or noticeable issues within it.

Here are some common signs of improper window replacement in your GTA home:

1. Drafty Windows

Drafty windows or windows with any gaps, is the sign of a poorly executed window replacement. With brand new, energy-efficient windows, no air should be passing through from the outside or escaping from within. Even pinpoint holes can throw off your home’s climate, so it’s best to find the source of the problem quickly. If the issue is with the caulking, this will be an easier fix that your window replacement company can help you with, but if there is damage to the lining or one of the panes, it could mean that you’ll need to replace the window once again.

2. Difficulty Opening and Closing Your Windows

Windows that get stuck in a certain position or are difficult to open or close could potentially be due to improper replacement. If your new windows are jamming or difficult to operate and there is no evidence of dirt lodged in the track, something may have gone wrong during the installation. For many years after your window replacement company carries out your installation, your windows should be fully operational and smooth-moving.

3. Improper Caulking

It may seem like a minor issue, but caulking is an important element of window replacement. This flexible material is commonly used to seal out any cracks, gaps, or joints, ensuring that nothing is able to pass through. When applied properly, the caulking should be air- and water-tight and should do an excellent job of holding the window frame together. Visually, your window caulking should be smooth, uniform, and hardly noticeable.

Just by looking, you’ll be able to spot improper caulking right away. When the window installer doesn’t have a steady hand or the patience to caulk properly, the work will appear sloppy. You may see unevenness or bumps, and just generally notice that the job was not well done. Since caulking is also integral to energy-efficiency, it’s important that it runs all the way around the window, holding on to both your home’s siding and the window frame tightly. Any separation that interrupts the seal is extra room for unwanted air and water to pass and cause trouble.

4. Mold and Mildew from Water Damage

There are many window replacement mishaps that can lead to water damage. As we mentioned, poor caulking is one potential culprit, but there could be others. Whatever the initial issue, if you notice mold or mildew on or around your windows, this is definitely a red flag that needs to be addressed as soon as possible. What this means is that somewhere along the way, the window installer did a poor job of aligning the window properly and/or making sure that it is properly sealed.

Mold and mildew are perhaps the most dangerous repercussion of improper window replacement. Not only can moisture destroy the integrity of your home, but these growths can also be harmful to your family’s health.

Let the Experts at Thermo-Bilt Handle Your Window Replacement

Many of the window installation mishaps listed above are avoidable and will never have to be dealt with if you hire the right GTA window replacement company to do the job. The professional window installers at Thermo-Bilthave over 20 years of experience in the industry and a solid reputation behind them. We look forward to installing your windows with all the care they deserve.


Searching for a solid window replacement company in Toronto and the GTA? Contact Us today for a free quote.