Top-Rated Flat Roofing Contractors | Local Experts in Commercial & Residential Flat Roof Replacement

Custom Flat Roof Replacements | High-Performance Membranes & Expert Install

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Solving the Challenges of Low-Slope Roofing

Custom Exteriors


Northern Colorado’s Flat Roof Replacement Experts| Certified TPO & EPDM Systems

A flat roof is a complex engineered system that must manage Colorado’s extreme UV radiation, heavy snow loads, and the inevitable challenge of standing water. At Custom Exteriors, we specialize in professional flat roof replacement for commercial facilities, industrial warehouses, and flat residential roof replacements in Greeley and across Colorado. 

We understand that for a property manager, a roof failure is a business disruption. That is why our process begins with forensic core sampling and infrared moisture detection to ensure your substrate is sound before we ever lay a membrane. As certified installers of heat-welded TPO, reinforced EPDM, and tapered insulation systems, we provide precision-engineered solutions that eliminate ponding and maximize thermal efficiency. Backed by decades of local construction experience and industry-leading warranties, we deliver the technical expertise and financial security your capital investment deserves.

Expert Flat Roofing with Custom Exteriors

At Custom Exteriors, we pride ourselves on being Colorado’s trusted partner in flat roofing. We are a top-rated flat roofing contractor in Colorado with a 5-star Google rating and an A+ accreditation with our local BBB. Your roof is an essential protection for your home or business, and flat roofs are more vulnerable to leaks, pooling water and damage if not installed correctly. That is why it is vital to work with a reputable flat roofing contractor. At Custom Exteriors, we deliver a roof that is durable and secure, protecting your home or business first and foremost. Flat roofs require specialized knowledge to prevent ponding and leaks. Explore our full range of commercial roofing solutions to see which flat roof membrane is right for your facility.

At Custom Exteriors, we specialize in providing residential and commercial flat roof replacements, repairs, and maintenance. With decades of experience in the industry, our roofing team understands that each flat roof presents its unique challenges and tailors your roof replacement experience to meet your specific needs. Some of the roofing systems our team is experienced in include: 

We pride ourselves on offering roofing solutions that are durable and long-lasting. Our installations are designed to endure the ever-changing climate of Colorado, from hailstorms to freezing winters. 

Above all, your experience matters to us. Whether your flat roof is on your commercial building or your home, Custom Exteriors is one of the best flat roofing contractors in Colorado. Contact us today to feel the Custom Exteriors difference first hand. 

Flat roof replacement by Custom Exteriors

Which Flat roofing system is right for my building?

When choosing a flat roof system for your property, there are many important factors to consider. These include the type of building, the climate in the area, the slope of the roof, and your budget. Another important consideration is the maintenance requirements of your replacement roof. Some flat roof systems require more maintenance than others. When choosing a replacement roofing system, factoring in the costs of long-term maintenance is sometimes overlooked. We recommend consulting with a qualified commercial roofing contractor. They can help you choose the best roofing system for your unique needs. Some flat roof options include: 

Modified Bitumen (Mod Bit) Roofing:

Modified Bitumen Roofing is a robust, flexible, and cost-effective choice for your commercial flat roof. It provides reliable protection against weather and wear, making it a wise investment for your building.

EPDM (Ethylene Propylene Diene Monomer) Roofing:

EPDM Roofing, known for its outstanding durability, easily withstands harsh weather and temperature extremes, ensuring a long lifespan for flat or low-slope roofs. Its exceptional flexibility allows it to expand and contract with temperature swings, preventing cracks and leaks. 

TPO (Thermoplastic Polyolefin) Roofing:

TPO Roofing is a popular choice due to its energy-efficient reflective surface that helps reduce cooling costs and its strong resistance to ultraviolet, ozone, and chemical exposure. It’s a lightweight yet highly durable membrane, making it ideal for both new construction and retrofitting existing buildings. 

PVC (Polyvinyl Chloride) Roofing:

PVC Roofing stands out for its resilience against chemical exposure, making it a top choice for restaurants and facilities that handle oils and fats. It’s also highly durable, with fire-resistant make-up and the capability to withstand punctures and tears, ensuring a long-lasting roofing solution. 

BUR (Built-Up) Roofing:

Built-up roofing systems offer robust multi-layer protection and have been a reliable choice for flat roofs for decades. The composition of alternating layers of bitumen and reinforcing fabrics provides a time-tested, resilient barrier against harsh weather. 

Each system has its particular strengths, and choosing one over another often depends on specific project requirements, environmental conditions, and budget constraints. Consulting with a roofing professional is always recommended to determine the most appropriate system for your application. 

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Flat Roof Experts

What are the Advantages of Flat Roof Construction?

At Custom Exteriors, we specialize in the high-performance flat roofing systems that power Colorado and Wyoming businesses. While flat roofs offer unique architectural advantages, they require expert installation to handle our region’s heavy snow and high winds.

For commercial properties, flat roofing systems offer a unique combination of versatility and cost-efficiency that makes them a superior choice for many modern businesses. Because these systems lack a traditional pitch, they unlock valuable usable space that can be transformed into functional rooftop decks, sustainable green roofs, or organized equipment zones for HVAC units. This design not only maximizes your building’s footprint but also proves extremely economical, as it typically requires fewer materials and less labor for a faster, more streamlined construction process.

Beyond the initial savings, flat roofs are built for convenience and energy performance. Their level surface provides easy, safe access for routine maintenance and inspections, which significantly lowers long-term repair costs and helps you keep your asset in peak condition. Many modern membranes also feature reflective properties that boost energy efficiency and reduce cooling loads during hot Colorado summers. However, these roofing systems do require expert oversight to manage the risk of water pooling and leaks. By partnering with a professional flat roof contractor like Custom Exteriors, you ensure that your roof is designed with the precision drainage and high-quality installation necessary to provide reliable protection for years to come.

How to choose your flat roof system:

Consider the design of the roof when replacing a flat roof systems

Consider the roof design

The design of your roof will play a significant role in determining which flat roof system is best for your property. Factors include the size and shape of the roof, its slope, and whether it is being used for anything other than protecting the property. 

Assess your unique needs and the factors unique to the location of your building

Assess your needs

In addition to your personal style preferences and budget, it is crucial to consider the needs of the building. Local weather conditions, energy-efficiency goals, and the use of the building will all play a role in the roof system you choose. 

Consider ongoing maintenance when choosing a new roofing system

Ongoing maintenance

Once your flat roof is installed, it will require ongoing maintenance. By considering the requirements when choosing a system, you can ensure that your roof will continue to provide long-lasting protection to your building. 

Find a reputable roofer

Choosing the right flat roof system is only half the battle. You must also find a reputable flat roofing contractor with experience in replacements, installations, and maintenance. Custom Exteriors has satisfied roofing contractors all across Colorado.

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Colorado's Flat Roof Experts

At Custom Exteriors, we provide an outstanding range of flat roofing services designed to add value to your property in Colorado, as well as Cheyenne, WY. Flat roofing is different from sloped roofing in several ways. Because of this, it requires some unique considerations regarding installation, maintenance, and repair. 

Custom Exteriors specializes in the installation and maintenance of all industry-standard flat roofing systems, including TPO, EPDM, PVC, and Modified Bitumen. Because every commercial property faces different environmental challenges, from chemical exposure to extreme UV rays, working with an expert is essential to ensure you choose a material designed for long-term durability. When replacing flat roofs in Colorado, our team also specializes in advanced Acrylic and Silicone roof coatings. These offer a high-performance, cost-effective way to restore your existing roof, improve energy efficiency, and extend its lifespan without the need for a full tear-off.

Our consultants are always available to help you navigate these material choices and determine the best strategy for your specific property. We provide comprehensive support throughout the entire life cycle of your roof, from initial design and precision installation to proactive repairs and full replacements. By focusing on high-quality materials and engineered drainage solutions, we ensure your flat roofing system is equipped to handle the unique demands of the Colorado and Wyoming climate while keeping your facility in perfect condition.

Commercial roof replacement Custom Exteriors
Northern Colorado commercial roofing contractor replacing flat roof on a hotel

Schedule A Consultation Today

To learn more about our commercial roofing option or to set up an appointment for your Front Range property today, call Custom Exteriors, LLC at 970-460-8714 or complete our online request form.

Ask for a Free Estimate for Flat Roofing Services in Northern Colorado, Colorado Springs and Colorado or Cheyenne, WY

If you are interested in flat roof replacement, repair, installation or maintenance in Colorado Springs or Berthoud, CO, or in the area of Cheyenne, WY, you can rely on the team at Custom Exteriors. To find out more or to ask for your free estimate, call us today at (800) 580-0131.

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