Since its founding in 1947, Douglass Roofing established itself as the Rocky Mountain region's premier full-service commercial, industrial and steep roofing contractor. As of January 1st 2009, Douglass Roofing and Colony Metal have joined to provide innovative solutions and unparalleled seamless services as Douglass Colony Group Inc.

Our state-wide presence in four full-service locations allows us to assume total responsibility for a project from start to finish. Each office in Denver, Colorado Springs, Glenwood Springs and Greeley is staffed by an experienced team of professionals certified and licensed for all aspects of roofing, metals, solar and waterproofing. Count on a commitment to quality, safety and service in every phase, from design, estimating, warehousing and transportation to installation, warranty and repair. There is no limit to the size of the projects we can perform based on the scope of our capabilities for financing, insurance and bonding. Every Douglass Colony Group project is defined by expert workmanship with attention to quality that is unparalleled in the industry.

With our combined expertise and capabilities, Douglass Colony Group has you covered from the ground up!

Contact Details

  City Commerce City, CO
  Zip Code 80022
  Address 5901 E 58th Ave
  Phone Number (303) 288-2635

Products & Services

Service / Maintenance

Commercial Roof Repair.

Douglass Colony Group is an Authorized Installer and Approved Applicator for more roofing material manufacturers than ANY other Colorado commercial roofing contractor. We are able to install a wide range of roof systems including Firestone, Carlisle Syntec, Johns Manville, Sika-Sarnafil, Durolast, GenFlex, and Bond-Cote, to name just a few. As Approved Applicators, we will repair your roof system without jeopardizing any warranties currently in place.

Our expertise covers all areas including:

1. Roof Inspections: provide reports that identify deficiencies and defects, photos,
budget estimates for repairs and budget estimates for capital expenditures.
2. Preventative Commercial Roof Maintenance: roof inspections and repairs to extend function.
life of roof.
3. Leak Investigation and Repair: emergency repair services.
4. Tenant Finish: coordinate new roof penetrations with owners and contractors.

Commercial Roof Maintenance

We are able to provide emergency assistance in commercial roof repair and roof maintenance at any time of day, regardless of the size of the project. As an Authorized Installer and Approved Applicator, our commercial roof maintenance can be performed without jeopardizing any of your current warranties. Contact us for information about our commercial roof repair services.

Customer Testimonials

What a real pleasure it was dealing with DOUGLAS/COLONY in all aspects of the construction process. From the initial concept presentation, pre-construction meeting and every step of the construction, they kept us informed of the timely process. I was very impressed with their focus on safety of their employees and the construction site. The Quality Control Inspection at the end proved to me that I picked the right company to replace our roof. It was a very refreshing experience.


Commercial Solar - Douglass Colony Group Ribbon Cutting

Douglass Colony Group recently had a ribbon cutton ceremony for their 100kw solar photovoltatic energy system installation on their headquarters in Commerce City, Colorado. The solar installation was composed of the several main types of solar panels that Douglass Colony Group offers including Solyndra, Crystalline and Thin Film Laminate solar panels.

Photo Book

Social Activity

As the regions premier full service roofing contractor, we offer all types of new construction roofing services. As installers for every major manufacturer and with a proven record of success, there is no limit to the services and capabilities that Douglass
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Roof Leaks are commonly caused by abuse or physical damage from hail wind, heavy rain, snow, and sun and by lack of preventative maintenance. Make sure to get routine inspections to prevent leaks.
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Daylighting systems use natural light to illuminate building spaces rather than solely relying on electrical lighting during the day. By capturing the natural light through a dome and filtering it down through a reflective system, the natural light is
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100 Steele (CODA Apartments)was abundant with risks, constructing a 12-story building on a plot of land the exact size of the building with no extra space in a high-traffic and high-profile area with all custom made and designed materials. However, Douglass
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LEED Construction is a design and construction practice that is driving our industry. LEED/Green Building construction promotes the economic health and well-being of your building, the community and the environment.
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Preventive maintenance can help make sure leaks and damage don't occur. Let us help you maintain your roofs.
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Denver's rooftop garden law may be getting reworked to provide more solutions to new development.
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We provide professional commercial waterproofing services in Colorado to help safeguard your building against leaks and water damage. Both below grade and horizontal waterproofing services prevent moisture from reducing the structural integrity of your
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From Our Website

Douglass Colony is a commercial construction company with core business in roofing, but also providing expertise in the entire building envelope. We are leaders in the construction industry, being one of the only in the U.S. to offer business lines in every aspect of the build. The Colorado State Capitol Reroof, in Denver, is one of 15 outstanding building projects that received a 2018 North American Copper in Architecture (NACIA) Award for its outstanding use of architectural copper and copper alloys.

Douglass Colony group is a full-service specialty contractor that has been servicing the Rocky Mountain region since 1947 with the mission of providing excellent, seamless service from design to completion using quality materials, competent, friendly communication, and innovative, energy-efficient solutions. Douglass Colony's capabilities include roofing, metal, solar, waterproofing, daylighting, service & maintenance, sunscreens, light gauge steel trusses, panelized metal stud framing, and much more.

Over the years, the popularity of commercial metal roofing has increased tremendously for a variety of reasons. Architectural metals are highly durable, lightweight, available in countless colors, and are an excellent way to brand your business. Furthermore, commercial metal roofs not only enhance the visual aesthetics of your commercial building, it can also lengthen the life of your roof to last 50 years or more. As a leading commercial metal roofing manufacturer, Douglass Colony offers a variety of commercial metal wall panels in numerous colors and finishes including galvanized, galvalume, pre-finished steel, pre-finished aluminum, copper, zinc, stainless steel, and rusting steel.