New windows are an exciting addition to your home, but a bad installation job can ruin the moment. While it’s pretty easy to spot when a window is broken, it can be tougher to spot when a contractor installs your windows incorrectly. Even worse, badly fitted windows can lead to a host of problems, including drafts, leaks, and high energy bills.
If you want to cut down on these issues, it’s important to know the warning signs. Read on to learn how to spot badly fitted windows and how to fix them when you do.
Common Signs of Poorly Installed Windows
Window issues can manifest in a lot of different ways, from subtle changes in temperature to more obvious structural issues. Homeowners should keep an eye out for the following issues:
Strange Noises
One of the first signs of a bad window installation is unusual sounds when operating the window. Squeaking, creaking, or cracking noises during opening or closing can mean that the window is either too tight or too loose in its frame. It can also happen if a contractor installs hardware like hinges or stays incorrectly.
Noticeable Gaps
Gaps between the window frame and the surrounding wall are a clear indication of installation problems. These gaps can occur because of incorrect window sizing, poor measurements for custom windows, or improper fitting during installation.
Even small gaps can lead to significant air and water leaks, so it’s important to fix these issues quickly to avoid high energy bills and water damage in your home.
Difficulty Opening and Closing
Windows should operate smoothly without needing excessive force. If a window sticks or doesn’t close fully, it’s likely a sign of poor installation. This issue is especially common in double-hung sash windows, slider windows, casement windows, and awning windows.
If you’re having a hard time opening or closing your window, it could be because the contractor used windows that weren’t the right size for the opening or because of misalignment during installation.
Drafts
A sudden increase in drafts after new window installation is a sure sign that your contractor didn’t install them correctly. Even small, invisible gaps can allow cold air to enter and warm air to escape, leading to increased energy costs.
These drafts can be a result of improper window fitting, inadequate caulking, or broken seals in double- or triple-pane windows. To detect drafts, homeowners can use their hands to feel for air movement around the window frame.
Water Damage
Leaks are one of the most serious consequences if your contractor doesn’t install your windows correctly. Initially, homeowners might notice slight dampness or mold around the window frame or sill.
If left unchecked, these symptoms can progress to peeling paint or wallpaper, puffy walls, large patches of mold growth, and rotting wood. Mold can affect your health, so it’s important to address water damage quickly.
You may get water damage if you have windows that aren’t level or have damaged flashing. Using building paper instead of proper window flashing can also lead to leaks, so be sure to use proper window flashing if you’re doing a DIY installation.
Fog Between the Panes
Double-pane windows contain a layer of inert argon gas between the glass to improve energy efficiency. If you get fog or water droplets between the panes, it’s a sign that the window’s seal has broken, allowing the gas to escape and moisture to enter.
When this happens, you’ll need to replace the entire window. Luckily, your warranty may cover it if it’s a new installation.
Bad Caulking
While caulking might seem like a minor detail, it plays a big role in insulating your windows. Your caulk should form a clean, even line around the window. While uneven, patchy, or sloppy caulking isn’t a big deal on its own, it could mean that the installer was careless with other aspects of the installation as well.
Leftover Mess
Window installation can be messy, but reputable installers always clean up thoroughly after completing the job. A messy work area post-installation may suggest that the installers cut corners in other areas of their work. Homeowners should be on the lookout for debris in the work area, leftover dust and dirt, and adhesive residue or smudges on the glass.
No Warranty
New windows typically come with a manufacturer’s warranty. If the installer doesn’t provide this warranty, that’s a big red flag. Installers have to follow specific installation guidelines for the warranty to remain valid, so if your contractor doesn’t show any warranty information, there’s a chance it’s already void.
Consequences of Poorly Installed Windows
If your contractor installs your windows incorrectly, it could lead to a lot of long-term issues, like the following:
- Increased energy costs due to air leaks and poor insulation
- Potential water damage and mold growth in walls and floors
- Reduced comfort due to drafts and temperature fluctuations
- Decreased home value and curb appeal
- Premature wear and tear on the windows themselves
Signs of incorrect installation may seem subtle at first, but it’s better to address these issues head-on instead of waiting for the problems to grow.
Steps To Take if You Suspect an Error
If you notice any of the signs above and think your contractor may have made some errors, you should take the following steps:
- Document the issues with photos and detailed notes
- Contact the installation company immediately to report the problems
- Review the warranty and installation contract for coverage details
- If necessary, hire an independent inspector to assess the installation
- Consider seeking a second opinion from another reputable window company
Most reputable window installers will stand behind their work and address any issues at no additional cost to the homeowner. However, shady sub-par installers may get defensive. If so, don’t back down. You may have to fight to get them to right their wrong.
Choosing the Right Installer
Selecting a qualified window installer can save you a lot of headaches down the road. Remember, you typically get what you pay for. Prioritize the best window replacement companies with a proven track record of reliability and quality.
Also, be sure to research ahead of time. Don’t just do a quick Google search and choose the first company that pops up in your results. Be sure to ask for references and check online reviews before hiring.
To cover all your bases, make sure the company uses manufacturer-certified installers and request a detailed contract that outlines the installation process and warranty information. Additionally, you should be present during the installation, if possible, to observe the work.
This may seem like a lot of caution to take for a simple window job, but when your money is on the line, it’s important to be on guard. There’s no shortage of scam companies out there, so stay vigilant.
However, the windows you choose are just as important as who installs them. If you’re not sure which ones fit your home, consider the ProLine 450 Series and Lifestyle Series windows from Pella. There are plenty of window options on the market, but Pella is one of the best window brands and they’re a great place to start your search.
