Douglass Colony Group

Company Description


Douglass Colony Group is a full-service specialty contractor that has been servicing Denver and the entire Rocky Mountain region since 1947. Our mission is for each and every customer to be completely satisfied with the work we do. We provide our customers with excellent, seamless service from design to completion using quality materials, competent friendly communication, and innovative, energy-efficient solutions.

Douglass Colony Group has three locations throughout Colorado (Commerce City – HQ, Greeley, and Colorado Springs) and employs over 500 people including installers, designers/CAD draftsmen, superintendents, project managers, sales, accounting, safety professionals, and quality control specialists. The largest commercial roofing, metals, solar, waterproofing, and FRAMECAD-capable company in Colorado and the Rocky Mountain region, Douglass Colony’s materials, services, and expertise are unparalleled. With the experience and size to back our reputation, there is no limit to the services that we provide. In fact, we’ll happily tackle jobs other companies hesitate to take on. We are certified installers of every major manufacturer with a proven record of proficiency and will assist you on any project, with anything from budget numbers to design and development.

To help your business go Green, our sales team is LEED-accredited. Whether you are aiming for a specific LEED certification or simply looking to reduce your environmental footprint, our design and sales representatives will recommend a variety of products and applications to fit your needs.



  • Members

Division 2 - Site Construction

  • Pedestal Pavers

Division 5 - Metals

  • Cold Formed Metal Framing
  • Load Bearing Metal Studs
  • Metal Decking
  • Metal Roofing
  • Miscellaneous Metal Fabrications
  • Steel Joists

Division 7 - Thermal and Moisture Protection

  • Exterior Insulation and Finish Systems
  • Fireproofing
  • Firestopping
  • Insulation
  • Joint Sealers
  • Membrane Roofing and Sheet Metal
  • Pedestal Pavers
  • Preformed Roofing and Cladding / Siding
  • Restoration
  • Roof Specialties
  • Roofing Tiles
  • Shingles
  • Skylights
  • Thermal and Moisture Protection
  • Waterproofing / Dampproofing
  • Weather Resistant Barriers

Division 10 - Specialties

  • Louvers, Vents and Screens

Division 13 - Special Construction

  • Solar Energy Systems