At B&M Roofing, transparency is at the core of every project we take on. Our commercial roof cost calculator helps property owners and managers across Colorado estimate pricing based on roof size, material type, and project complexity. Whether you’re planning a full roof replacement, a partial retrofit, or a new commercial installation, our team provides accurate, straightforward estimates. Use our calculator below to explore your options, then contact us for a detailed, site-specific quote.
The average cost of a full commercial roof replacement in Colorado ranges from $32,500 to $354,375. The cost of a full roof replacement for your commercial building will depend on the size of your roof, the condition of your existing roof, the type of new roofing material, and the number of penetrations in your roofing system. Contact B&M Roofing to get a precise, custom commercial roofing quote!
Commercial Roof Replacement Costs in Your Area
The table below provides estimated roof replacement costs based on average-sized commercial buildings throughout Colorado to help property owners and facility managers understand what to expect when budgeting for a new flat roofing system.
City
Flat Roof Cost
Arvada, CO
$33,876 - $192,669
Flat roof replacement costs in Arvada generally fall between $33,876 and $192,669, averaging around $113,273 for commercial buildings.
Aurora, CO
$283,824 - $1,614,249
In Aurora, flat roof replacement costs often range from $283,824 to $1,614,249, with an average cost of $949,037 for commercial properties.
Boulder, CO
$31,692 - $180,248
Flat roof replacement costs in Boulder typically land between $31,692 and $180,248, with an average commercial roof cost of $105,970.
Denver, CO
$89,838 - $510,953
In Denver, flat roof replacement costs usually range from $89,838 to $510,953, averaging about $300,396 for commercial buildings.
Englewood, CO
$30,060 - $170,966
Flat roof replacement costs in Englewood commonly fall between $30,060 and $170,966, with an average project cost of $100,513.
Erie, CO
$151,788 - $863,294
In Erie, flat roof replacement costs are typically between $151,788 and $863,294, averaging approximately $507,541 for commercial roofs.
Firestone, CO
$352,656 - $2,005,731
Flat roof replacement costs in Firestone often range from $352,656 to $2,005,731, with an average commercial roof cost of $1,179,194.
Frederick, CO
$238,416 - $1,355,991
In Frederick, flat roof replacement costs generally fall between $238,416 and $1,355,991, averaging roughly $797,204 for commercial buildings.
Lakewood, CO
$38,994 - $221,778
Flat roof replacement costs in Lakewood typically range from $38,994 to $221,778, with an average cost of $130,386 for commercial properties.
Littleton, CO
$26,214 - $149,092
In Littleton, flat roof replacement costs commonly land between $26,214 and $149,092, averaging about $87,653 for commercial roofs.
Westminster, CO
$73,398 - $417,451
Flat roof replacement costs in Westminster generally range from $73,398 to $417,451, with an average commercial roof cost of $245,425.
Colorado Commercial Roof Replacement Cost by Material
EPDM
$5.5 per square foot
TPO
$5 per square foot
PVC
$6 per square foot
Metal
$12 per square foot
What is the cheapest type of flat roof?
In most cases, TPO roofing is the most cost-effective flat roofing option for commercial buildings. TPO membranes are lightweight, relatively quick to install, and provide strong resistance to UV exposure and heat, a crucial consideration for Colorado’s high-altitude sun. TPO is commonly used on warehouses, retail centers, and office buildings where affordability and energy efficiency are top priorities.
What is the most expensive type of flat roof?
Metal roofing systems are typically the most expensive option for commercial buildings due to higher material costs and more labor-intensive installation requirements. However, metal roofs offer exceptional longevity, superior weather resistance, and long-term durability against snow loads, hail, and high winds. For owners planning long-term occupancy or seeking a low-maintenance solution over decades, the higher upfront investment can provide strong lifetime value.
Price of Flat Roof Replacement by Square Foot
Roof Size (sq. ft.)
Roof Replacement Cost
5,000
$30,000 - $170,625
10,000
$60,000 - $341,250
25,000
$150,000 - $853,125
50,000
$300,000 - $1,706,250
75,000
$450,000 - $2,559,375
100,000
$600,000 - $3,412,500
125,000
$750,000 - $4,265,625
150,000
$900,000 - $5,118,750
175,000
$1,050,000 - $5,971,875
200,000
$1,200,000 - $6,825,000
Commercial FLat Roofing Cost Factors
Every commercial roof is unique, and pricing depends on a combination of physical characteristics, material choices, and environmental demands. Here’s what influences your final cost:
Size The larger the roof, the greater the material and labor requirements. B&M Roofing measures accurately to eliminate waste and guarantee you’re only paying for what’s necessary.
Material Your roofing system affects both the upfront cost and long-term performance. We help you compare durability, energy efficiency, and warranty coverage to make the smartest investment.
Tear Off If your existing roof must be removed before replacement, disposal and prep work can add to project costs. Our team evaluates whether a full tear-off or a recover installation makes more financial sense.
Architectural Features Complex layouts, parapet walls, skylights, and rooftop equipment can increase labor time and detail work. B&M Roofing’s skilled crews handle intricate designs to maintain waterproofing and structural integrity.
Time of Year Colorado’s climate plays a big role in scheduling. Winter installations may require additional protection measures, while spring and fall tend to offer optimal conditions for fast completion.
