Door Replacement & Installation Warranty

Want Patio Doors that Last? Count on WindowStrong!

All Comfort Design doors installed by WindowStrong feature a rock solid lifetime warranty against defects in materials or workmanship, which is backed by the manufacturer’s repair, replace, or refund guarantee.

And get this: The warranty is even transferrable to the next owner of your home for a period of up to five years. Even if you intend to stay put in your home for several years, this could be a powerful selling tool when the time eventually comes.

Because WindowStrong is committed to providing you with the best door installation process experience possible, we take the manufacturer’s warranty and strengthen it by:

  • First, we provide a one-time glass repair, completely free of charge, beginning one year from your installation date. Hit by a stray soccer ball? Horseplay in the house? Whatever it is, we’ll take care of it.
  • Second, each patio door we install comes with a one year warranty against defects in craftsmanship. If something happens, rest assured that we’ll act quickly and will have it resolved within 7-10 business days. In fact, all you’ll need to do is contact our Installation Manager and we’ll handle the rest.

Do you have questions about types, styles, prices or warranties for doors? Whatever it is, give us a call at (206) 914-7075 and we’ll help make you a more informed consumer!