Why Installation Is So Important
Proper window and door installation prevents leaks, drafts, mildew growth, rot and fogging; it ensures your new windows and doors will work smoothly and look perfect for a long time to come.

A quality window is only as good as the installer who installs it, and our installation professionals not only have years of experience they have some of the best workmanship in the industry.

What We Offer
Authentic Window Design is an Authorized Marvin Installer, which means our installations comply with manufacturer recommended guidelines. Our professional, in-house installers are licensed, insured and thoroughly trained by the manufacturer to ensure windows and doors open, close and function properly for a lifetime.

Lifetime Installation Warranty
We are so confident your installation will be done correctly, that we offer our customers a Lifetime Installation Warranty. So as long as you own your home, we will stand by our installation. No other retailer in the area will offer you that!

  • Thorough, no-obligation free consultation
  • Precise measurement of your existing window or doors
  • Detailed project estimate
  • Convenient window installation schedule
  • Removal of old materials and clean-up of your home
  • The protection of Marvin’s warranty
  • 10 year warranty on workmanship