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

FREE estimates on site

We work with your taste in doors and styles

You get LIFETIME Labor Warranty, on Top of Any Manufacturer’s Warranties, When You Hire Us

Are you tired of walking all the way around the house just to get in and out? We can add a new door to your home, or replace an old door for a more energy efficient model. We're so confident in in the quality of our work, we give you a LIFETIME warranty on our labor too. Don't forget to ask us about new windows too.

We Give You Ultimate Door Installation

Learn How Easy It is to Add Another Door

Do you need another door added to your home? No problem. Our team at Douglas Exteriors of DeKalb, IL can install a door almost anywhere on your property.


We're happy to offer a LIFETIME warranty on labor in addition to any manufacturer's warranty. We offer this on shutters and gutters too.

See our window guarantee


  • Experience

  • FREE estimates

  • Great materials

  • Superior products

  • Lifetime labor warranty

  • Insured

  • Entry doors

  • Replace doors

  • Install doors

  • Wood doors

  • Steel doors

  • Fiberglass doors