Douglas Exteriors - Siding and Windows | DeKalb, IL googleplus facebook logo-bwSM twitter logo-bw boxSM
Windows Windows workmanship Windows

You get a 25 YEAR

Glass Breakage warranty on our windows

Protect your home and get amazing warrantees on windows from Douglas Exteriors

A new window is a great way to naturally light up a room and get fresh air. If you're lucky enough to have a great view, a bay window will help you enjoy it.


We want you to know that when you work with us at Douglas Exteriors of DeKalb, IL, we're with you for the long haul. That's why we happily offer a LIFETIME warranty on labor in addition to any manufacturer's warranties. This applies to our siding too.

30 years of experience


  • Experience

  • FREE estimates

  • Great materials

  • Superior products

  • Lifetime labor warranty

  • Insured

We're Your Proven Window Installer

Enjoy Your Extraordinary Bay Window

New windows can be a major investment, but you know they add value and beauty to your home. You'll love the energy savings too. However, you'll have peace of mind too, with our 25 YEAR accidental glass breakage warranty. This covers EVERYTHING. Call us today to set up an appointment for your FREE estimate.

  • Window frame wraps

  • Window replacements

  • Window installation

  • Bay windows

  • Bow windows

  • Energy efficient windows

  • Awnings