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Douglass Colony Group

Douglass Colony Group

Commerce City, CO
Year Founded: 1947
www.douglasscolony.com
Total Kilowatts Installed Since Founded: 5

Founded in 1947, Douglass Colony Group is a full-service commercial and industrial roofing contractor with offices in Denver, Colorado Springs, Glenwood Springs, and Greeley. The firm provides services in commercial roofing solutions and repair, metal roofing, waterproofing and sustainability. Of the company’s 400 employees, more than 45% are LEED accredited professionals. Douglass Colony produces roofing solutions to a diversity of facilities in the Rocky Mountain region spanning from hospitals, colleges and universities, to corporate and civic establishments.

 

2014
Rank #184  ·  2014 List  ·  2013 Installation Data
Installer
1
2013 Installation Data
2013
Rank #113  ·  2013 List  ·  2012 Installation Data
Installer
2
2012 Installation Data
2012
Rank #63  ·  2012 List  ·  2011 Installation Data
Installer
2
2011 Installation Data
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  • Home
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    • Most Recent Posts
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      • Latest News Items
      • SPW State News Hub
      • IRA/OBBBA coverage
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      • U.S. manufacturing updates
    • Featured
      • Latest Feature Stories
      • Benchmarking U.S. Solar Manufacturing
      • SPW’s Rising Stars
      • Trends in Solar
      • The Solar Explorer
  • Policy
    • Latest policy headlines
    • IRA/OBBBA Coverage
    • Tariffs and Court Cases
  • Markets
    • Residential
    • Commercial
    • Community Solar
    • Utility
    • Storage
  • Products
    • 2026 Top Products application
    • Winners of SPW’s 2025 Top Products
    • Batteries and Storage
    • Electric Vehicle (EV)
    • Inverters
      • U.S. solar inverter manufacturers
    • Racking and Mounting
      • U.S. solar mounting manufacturers
    • Software
    • Solar Panels
      • U.S. solar panel manufacturers
  • Resources
    • About SPW
    • Digital Issues
    • Event Coverage
    • Podcasts
    • Product Manufacturing Locations
      • U.S. solar inverter manufacturers
      • U.S. solar mounting manufacturers
      • U.S. solar panel manufacturers
    • Solar Classrooms
    • Suppliers
    • Videos
    • Views
    • Voices
    • Webinars / Digital Events
    • Whitepapers
  • 2026 Leadership
    • 2025 Winners
    • 2024 Winners
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    • 2022 Winners
  • Advertise
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