Window Warranties: Everything you need to know before replacing your windows.

Product warranties are meant to protect consumers from expensive repair or replacement costs in the event of a product malfunction or if it is broken while still covered under a warranty. Unfortunately, warranty information can be confusing. We think it is important to share information regarding window warranties because replacing windows can be a big investment to the end user! Whether you are working with a contractor or a supplier, warranties can be a big benefit if you know what is included in the warranty fine print!

What do I need to know about window warranties? Window warranties are not mandatory, which could leave you in a bind if your new windows start giving you problems. We recommend asking your window installer the following questions to ensure your window’s warranty is right for you.

  1. Do you offer a warranty on your windows? Warranties are not mandatory and some companies may not offer or include a warranty for your windows. If your contractor does not offer any warranties, you may want to consider different windows or a new contractor, be sure to ask this question before reaching a signed agreement of work with your contractor.
  2. How long is the warranty valid for? The scope of warranties often differ by product, brand, or manufacturer. Some warranties may be a lifetime warranty, meaning they are valid forever. Others may only be valid for one, five, or 10 years, while others may last a lifetime.
  3. Is the warranty a limited warranty or full warranty? Not every window warranties are the same. If your window comes with a full warranty then all parts should be replaced by the manufacturer or contractor in a reasonable amount of time at your convenience. A limited warranty is more strictly regulated and may only apply to certain parts or appeal to specific defects. Limited warranties offer less coverage than a full warranty and are only as specific in their coverage as the manufacturer or retailer wants.
  4. Does the warranty cover all parts? A window may seem simple, but contrary to popular belief, it is actually a complex system of moving parts. A manufacturer’s warranty may or may not cover the glass, hardware (e.g. its lock), window screen, etc. Be sure to ask what parts are covered in your window’s warranty. Ideally, all parts are protected under your warranty.
  5. Does the warranty cover labor? Similar to covering the various parts of a window, a warranty may or may not cover its installation. Although you can rely on most companies to properly install a window (especially if they are a window and door company), your windows may be installed incorrectly and result in insecure seals or a malfunction.

Window Warranty: Other Things to Consider

In addition to learning all about your warranty, you may want to ask your contractor more questions to learn more about the manufacturer and their warranty policies. In order to make sure you are satisfied with your window warranty, consider asking the following additional questions:

  1. Is it easy to contact the manufacturer?
  2. How easy is it to register for the warranty?
  3. How soon can I expect my window to be fixed or replaced while under warranty?
  4. Is the warranty transferable (passed along to subsequent homeowners)?

If you are replacing windows and checking out various brands, do ask your contractor for the warranty information. Most window manufacturers provide this information on company websites. At Tree Court, we made it easy for you by providing links to warranties of our top suppliers! Just go to and click on the RESOURCE page for easy access to warranty information! Or call 636-225-7717 and talk with our friendly customer service representatives who can answer your questions!