Suppliers and Affiliations


Douglas County Roofer

We are the best roofing company in Colorado and as such, we work with only the best suppliers and manufacturers. Celtic Roofing offers a 5 year warranty on all our workmanship as well as a full manufacturers warranty on the products we use. Our A+ rating with the BBB says it all – We offer exceptional service, quality installation of high-grade materials and jobs completed on time with a reasonable cost.


Atlas PRO+™ Program


Owens Corning

ABC Supply

DECRA Metal Roofing

GAF Roofing

BBB Rating


Angies List Super Service Award 2019

MacArthur Co.

Allied Roofing

Celtic Roofing Homepage

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Commercial Roofing

Residential Roofing

Metal Roofing