It’s Our Job to Protect Your Greatest Assets
As an industry-leading commercial roofing, repair, and inspection contractor in Colorado, we offer innovative and effective solutions for all roofing and metal types, regardless of size or intricacy.
We aim to provide seamless service from design to completion. We offer our services for a large variety of commercial roofing, including low slope commercial roofing, steep slope commercial roofing, metal roof work, commercial green roofs, and more.
Our Focus is Your Roof
We prioritize quality materials, expert craftsmanship, efficient communication, and innovative, energy-efficient options. Complicated or unique roofs are not something we shy away from, and we can help you with everything from design to cost estimation to full commercial roof installation.
Douglass Colony can also have your roof inspected and provide any necessary commercial roofing maintenance and commercial roofing repair through our commercial roof inspection and maintenance programs.
Roofing Services
Why Choose Douglass Colony Group?
We’re the largest business offering commercial roofing services in Denver, Colorado, and the entire Rocky Mountain Region. With over 75 years of experience to back our expertise, we’re ready for anything. From metal roof installation for businesses to LEED and sustainable roofing solutions, we do it all, and we do it all under our roof. From idea to design, fabrication to installation, it’s all in-house and all done with a safety and sustainability focus.
We don’t want to install a roof and walk away. A roof is crucial to any business. It’s our promise to customers that we’ll be there from start to finish and beyond. We aren’t just a contractor, we’re a partner.
See Your Roof from Above
Drones Take Our Roofing Services to New Heights
Douglass Colony takes care of every building as if it were our own. With our unmatched blend of people, history, innovation, and quality, we take on the jobs that others won’t. From re-roofing and waterproofing that can give a building new life to commercial roof service, maintenance, and fast roof repair and replacement that can save building owners big money, Douglass Colony delivers nothing but the finest results — every time.
Harnessing our drone capabilities, we can provide you with a bird ’s-eye view of your building. Using drone technology, we can easily pinpoint potential risks before they become a problem without needing the manpower to safely get up on your roof and inspect it ourselves.
Check out this video that shows some of our capabilities and how we put our drones to work for you.
Testimonials
I can say without hesitation Douglass Colony performed an outstanding job to even go as far to say one of the best I’ve ever been a part of.
Douglass Colony did a wonderful job working with our customer service department to get material to the project site in the very busy downtown of Denver… The final appearance of the project was outstanding.
I appreciate the push to get [the work at YVMC] done quickly and efficiently, and the canopy work looks great. I appreciate your help in that successful schedule. Thanks for the hard work to get this phase successfully completed
Green & LEED Roofing
Douglass Colony wants to help your business go “green.” By installing commercial garden- and/or solar-roofing, building owners can transform their roofs into an eco-friendly, livable space with great economic, social, and environmental benefits. We’re the one to turn to when you’re ready to explore LEED and sustainable roofing solutions.
Questions? Contact us
Use the form or call 303-288-2635.
Frequently Asked Questions
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Douglass Colony specializes in a full range of commercial roofing systems, including:
- Low-slope (flat) roofing systems (e.g., TPO, EPDM, PVC)
- Steep-slope roofing systems
- Green roofs / garden roof systems
- Metal roofing systems
- Integrated roofing + solar solutions
- Custom roofing solutions for complex commercial projects
Our approach is system-agnostic and manufacturer-certified, meaning we can recommend and install the best system based on building performance.
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In Colorado’s climate, a commercial roof should typically be inspected:
- At least 2 times per year (spring + fall)
- After major weather events (hail, heavy snow, high winds)
Why this matters in Colorado:
- Frequent hailstorms and freeze-thaw cycles accelerate wear
- UV exposure at higher elevations increases membrane degradation
- Snow loads and drainage issues can create hidden damage
Routine inspections help extend roof life and catch small issues before they become costly failures.
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Green roofs (also called garden roofs) offer both performance and sustainability benefits:
- Reduces the heat island effect and lowers rooftop temperatures
- Manages stormwater runoff, reducing strain on drainage systems
- Improves insulation / thermal performance, lowering energy costs
- Extends roof lifespan by protecting the membrane from UV and weather
- Supports sustainability + LEED goals
- Enhances aesthetics and usable space
Douglass Colony specifically highlights modular systems and reinforced waterproofing assemblies designed to support vegetation and long-term durability.
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Yes. Douglass Colony offers service, maintenance, and emergency repair services for commercial roofs.
This typically includes:
- Rapid response leak repairs
- Storm damage mitigation (especially hail-related)
- Temporary waterproofing solutions
- Ongoing maintenance programs to prevent emergencies
Their service division is designed to support buildings before, during, and after failures, not just during installation.
Projects
Douglas County Library
Chamonix Hotel, Casino & Conference Center
Hotel Polaris: Air Force Academy Hotel & Event Center
320 Fillmore Mixed-Use Development
Moxy – University Hill Hotel
Highlands Ranch Library
Resources
Pairing Solar, Green, and Purple Roof Technology on Commercial Projects
Learn how combining solar, green, and purple roof technologies into an integrated roofing system on commercial buildings improves energy efficiency, stormwater management, and long-term roof performance.
Avoiding Business Disruption During a Commercial Re-Roofing Project
Find out how to avoid business disruption during commercial re-roofing projects and how Douglass Colony Group can support you through the process.
Repair vs Replace: The Cost Equation for Aging Waterproofing Systems
Learn when to repair or replace aging waterproofing systems. Discover signs of failure, cost considerations, and expert solutions for commercial buildings.