Don’t Void Your Window Warranty: 4 Common Issues You Can Avoid


Lady looking through her new windows (Don’t Void Your Window Warranty 5 Common Issues You Can Avoid)

When it comes to choosing new replacement windows, a great warranty can be a great selling point. It’s a good idea for big investments like new windows to be protected. However, if you ever need to file a claim, you’ll want to ensure that you or your window contractor don’t do anything that will void the manufacturer’s warranty. This blog will go over 4 common issues you should avoid to prevent your window warranty from being voided.


Windows have two types of warranties: workmanship warranties and manufacturer’s warranties. Workmanship warranties cover the contractor’s work, while manufacturer’s warranties cover the physical products being installed. There are numerous ways a warranty can be voided, which is why you should be aware of what you should and shouldn’t do. Although every warranty has its own specifications that you should discuss with your contractor, here are 4 common issues that usually void any window manufacturer’s warranty:

1. Improper Installations

A great majority of window warranties are very specific about how a product should be installed. One of the most common ways a manufacturer’s warranty is voided, is through an unprofessional and negligent installation. To avoid an improper installation, make sure that you hire a licensed contractor that is an authorized dealer for the window brands they install. Things you can do to make sure they are a licensed contractor and an authorized dealer are:

  • Check if they’re licensed
  • Check their Certificate of Insurance
  • Confirm they’ll pull permits
  • Avoid handshake agreements

At Wintorium, we are licensed contractors and authorized windows dealers. With us, you can have peace of mind knowing that our group of professionals will not void your warranty with an improper installation.

2. Incorrect Use

Opening and closing a window can be pretty straightforward as that process is similar for most windows. However, it’s always a good idea to ask your installer how to operate the window properly. Some windows can tilt and swing for easy cleaning; however, the process can involve a few steps. People who don’t know the proper steps can end up damaging the window. Window locks should be fairly easy to operate, so if you notice yourself jamming them, you could damage the locking mechanism. Not operating the window correctly can cause your warranty to be void.


3. Installing Blinds or Locks

Anytime you apply aftermarket products to your home, you are putting yourself in jeopardy of voiding the warranty. Because most blinds and locks require screwing or drilling onto the window frame, it can void your warranty. Installing blinds and locks can also damage the window’s mechanical parts that support the weight of the bottom sash when opened. We typically see this warranty issue with homeowners that purchase casement windows and French doors since people tend to put blinds on them. If you’re thinking about installing blinds or locks on your casement windows or French doors, make sure that you consult with the window manufacturers first before adding any accessories that can void the warranty.

Man installing blinds and voiding warranty

4. Improper Maintenance

Window maintenance is simple; small things like removing dust with a damp cloth is sometimes all you need to maintain it. However, if you don’t keep your windows in good condition, it can cost you your warranty. This is especially the case for wooden windows that can easily face issues if not well maintained.

While the issues mentioned above are pretty common, every warranty is different. That’s why it is essential that you carefully look over the warranty before signing a contract. Ask your window installer all the questions you have before making a decision. We hope this blog helped you get an understanding of the 4 common issues you should avoid to prevent getting a voided warranty. If you’re looking for a quality window installer, give Wintorium a call at (323) 307-7376 or click here for a free on-site quote!