Strong Contractors has been delivering commercial roofing and building envelope services to the Denver metro area for over 20 years. Our crews serve facilities across the city — from the DTC and I-25 corridor to RiNo, LoDo, and the DIA commercial district. Denver’s unique climate demands roofing systems that can handle 300+ days of intense UV, severe hail events, and rapid freeze-thaw cycles. Every system we specify and install is engineered specifically for Front Range conditions.
Denver
Commercial Roofing in Denver
Denver’s Trusted Commercial Roofing Contractor
Denver Climate At A Glance
Altitude
Mile-high UV
At this altitude, UV breaks down exposed membranes faster than at sea level.
Hail
Front Range hail
Summer storms along the Front Range regularly bring damaging hail to Denver.
Snow
Wet spring storms
Heavy March and April snow loads flat roofs and drifts against parapets.
Buildings
Century-old masonry to towers
Old brick warehouses sit blocks from modern glass office towers.
Services in Denver
Full-Scope Capabilities for Denver Facilities
Every service is self-performed by our crews — no subcontractors, no middlemen. Each system is specified for Denver’s altitude, UV exposure, and hail environment.
Ballast Removal in Denver
Many older Denver commercial roofs carry a layer of stone ballast that holds the membrane down and puts a heavy dead load on the structure. Removing it lets us inspect the membrane underneath. We stage the removal around the next step, whether that is a lighter recover, a coating, or a full replacement.
Learn MoreEmergency Roof Repair in Denver
When hail or a spring windstorm opens a roof over occupied space, the first job is stopping water. Our Colorado crews respond to storm damage and active leaks across Denver, from downtown offices to hospitals and warehouses, with temporary repairs that protect the interior. We photograph the damage so you have a record for insurance and the permanent fix.
Learn MoreEPDM Roofing in Denver
EPDM is a synthetic rubber membrane that stays flexible in cold weather and tolerates the movement of a roof deck. Denver winters swing above and below freezing again and again, which works seams and flashings loose on brittle roofs. EPDM suits the city's warehouses and older low-slope buildings where that movement never lets up.
Learn MorePolyurethane Coatings in Denver
Polyurethane coatings cure into a tough, flexible film that resists abrasion, impact, and chemical exposure. On Denver rooftops crowded with HVAC units and service paths, they protect walkways and equipment areas that see regular foot traffic. They also serve as base and top coats in spray foam systems that need to flex through hard freeze-thaw winters.
Learn MoreSilicone Roof Coatings in Denver
A silicone coating goes over an existing roof to form a continuous surface that holds up under standing water. For Denver buildings where a tear-off would disrupt tenants, it restores a worn membrane or metal roof in place. That ponding tolerance makes it a good fit for older flat roofs with low spots that never fully drain.
Learn MoreTPO Roofing in Denver
TPO is a heat-welded single-ply membrane with a white surface that reflects sunlight instead of absorbing it. At Denver's elevation, UV exposure runs stronger than at sea level, and a reflective roof helps office and mixed-use buildings hold down summer cooling loads. We test the welds and photograph the details for your facility records.
Learn More- Commercial & Industrial Roofing
- Fluid Applied Roof Systems
- Industrial Coatings
- Specialized Services
Commercial & Industrial Roofing
Commercial & Industrial Roofing
A commercial roof is a major building asset, and the right solution depends on more than the system that is already in place. Condition, moisture, drainage, insulation, facility operations, budget, warranty requirements, and long-term plans for the property all influence whether repair, restoration, retrofit, or replacement provides the best value.
Strong Contractors brings experience across virtually every major commercial roofing system, along with waterproofing, coatings, spray polyurethane foam, restoration, repair, and specialized services. That breadth allows us to execute projects designed to established plans and specifications or work with owners, engineers, and consultants to evaluate options and determine the most practical path forward for the facility.
- TPO Roofing Systems
- EPDM Roofing
- PVC Roofing Systems
- Metal Roofing & Retrofits
- Built-Up Roofing (BUR)
- Modified Bitumen Roofing
Fluid Applied Roof Systems
Fluid Applied Roof Systems
Fluid-applied roofing systems can be an effective way to restore and extend the service life of an existing roof without automatically moving to a full tear-off and replacement. When the existing assembly is a suitable candidate, these systems can address difficult transitions, penetrations, drainage conditions, and irregular roof geometry while creating a seamless, fully adhered protective surface.
Strong Contractors is an SPFA Accredited Contractor with extensive training and experience in spray polyurethane foam (SPF) and fluid-applied roofing systems. These systems depend heavily on proper substrate preparation, application thickness, detailing, environmental conditions, and quality control, which makes contractor experience and technical training especially important to long-term performance.
Industrial Coatings
Industrial Coatings
Industrial coating systems help protect concrete, steel, and other substrates exposed to moisture, corrosion, chemicals, abrasion, and demanding operating conditions. These systems are commonly used on tanks, containment areas, concrete surfaces, structural components, and other specialized areas where durability and long-term protection are critical.
Selecting the right coating depends on the substrate, existing surface condition, service environment, chemical exposure, and expected performance of the finished system. Strong Contractors installs protective coating systems for commercial and industrial facilities, with careful attention to surface preparation, application conditions, product compatibility, and quality control—factors that directly affect adhesion, durability, and long-term performance.
Specialized Services
Specialized Services
For Colorado facilities, Strong Contractors provides emergency roof repair and ongoing maintenance plans to address active issues, reduce recurring problems, and help owners stay ahead of larger roofing failures. Strategic repairs and maintenance can extend the useful life of an existing roof, help bridge the time until a larger capital project is planned, and support manufacturer warranty requirements where ongoing maintenance is required.
Strong Contractors also provides specialized building-envelope services, including air and vapor barrier systems and below-grade waterproofing. Our experience includes large-scale industrial and complex new-construction scopes where sequencing, access, detailing, and coordination are critical.
- Air & Vapor Barrier Systems
- Below-Grade Waterproofing
- Ballast Removal
- Emergency Roof Repair (Colorado Only)
Why Strong Contractors
Why Denver Chooses Strong
- Self-Performed CrewsWe don’t subcontract. Every roofer on your project is a Strong Contractors employee — trained, insured, and accountable to our quality standards.
- Manufacturer CertificationsCarlisle, Firestone, GAF, and Tremco certified installer. Full NDL and system warranty access for Denver projects.
- Front Range Weather Expertise20+ years engineering and installing roofing systems for Denver’s extreme UV, hail, and thermal cycling. Our specs are proven in this market.
- Safety Record0.82 EMR rating. OSHA 30-hour certified foremen. Daily safety audits on every Denver project site.
Areas Served
Denver Metro Areas & Neighborhoods
Downtown Denver
High-rise office towers, hotels, a convention center, and government buildings in the city's central business district.
LoDo
Historic brick warehouses converted to offices, restaurants, and lofts, mixed with newer mid-rise buildings.
RiNo
Former industrial and rail buildings turned into breweries, studios, and creative offices, alongside new mixed-use construction.
Denver Tech Center
Office towers and corporate campuses along the interstate, with hotels and retail serving a large daytime workforce.
Cherry Creek
A regional shopping center, boutique retail, hotels, and mid-rise office and medical buildings.
Stapleton / Central Park
Redeveloped former airport land with retail centers, schools, offices, and light-industrial buildings.
DIA Corridor
Hotels, logistics warehouses, and airport-support facilities along the main routes to the airport.
Globeville / Elyria
Industrial plants, warehouses, and large event and livestock buildings near a major interstate interchange.
Federal Blvd Corridor
Strip retail, restaurants, auto shops, and small commercial buildings along a busy west-side arterial.
Montbello
Distribution warehouses and light-industrial buildings, plus schools and neighborhood retail.
Park Hill
Neighborhood retail, churches, schools, and small office buildings along busy commercial streets.
I-25 / I-70 Industrial
Warehouses, manufacturing plants, and distribution centers clustered where the city's two main interstates meet.
Local FAQ
Denver Roofing Questions
Straight answers to what Denver owners and facility managers ask us most.
Let's Discuss Your ProjectHow do you reroof a historic masonry building in Denver?
Older brick buildings often hide parapet damage, worn coping, and several roof layers. We open up the assembly, check the deck and parapet walls, and plan flashing that ties into the masonry without trapping moisture. Where landmark review applies, visible changes may need approval, so we bring your architect in early.
What should a Denver facility manager do in the first hours after a hailstorm?
Walk the interior first and note active leaks, ceiling stains, and wet insulation. Photograph the roof only from safe access points, and keep people off a wet or damaged surface. Then call your insurer and a commercial roofer.
Strong Contractors provides Emergency Roof Repair in Colorado, including Denver, with temporary repairs that limit interior damage while the assessment and claim move forward. Call 720-753-4836.
Do we have to add insulation when we replace a Denver roof?
Often, yes. Replacing a roof can trigger insulation requirements under the energy code Denver has adopted, which affects tapered layouts, edge heights, and flashing at doors and rooftop units. Larger buildings may also carry local energy reporting requirements, so the roof becomes part of a bigger compliance picture. We confirm requirements during design so the price reflects them.
Is spray foam a good option for an older Denver warehouse roof?
SPF can be a strong fit for an older warehouse with an irregular deck, many penetrations, or a need for more insulation. It goes on as one monolithic layer, adds R-value, and can be built up to improve drainage. A silicone or acrylic topcoat protects the foam from UV. Wind and surface moisture limit spray days, so we schedule around both.
