top of page
Modern Architecture

Premier Commercial Roofing Services in Westminster

Built to Perform. Engineered to Last.

Expert Commercial Roofing Services for Westminster, CO

Welcome to United Materials: Your Trusted Partner in Commercial Roofing Excellence

With a rich legacy spanning over a century, United Materials is a foremost provider of expert commercial roofing services for businesses in Denver and the Rocky Mountain region.

As a reputable commercial roofing contractor serving Westminster, Colorado, we are committed to delivering top-notch and dependable commercial roofing services. Our team of experienced roofers is adept at handling various roofing systems, ensuring the secure and efficient installation of your roof for both new constructions and existing structures.

Rocky Mountain High School Ft_edited - Copy_edited.jpg

Our Legacy of Excellence

United Materials has built a legacy based on a strong foundation of quality, integrity, and customer satisfaction.


We have consistently exceeded industry standards, evolving with technological advancements and staying at the forefront of commercial roofing innovations. Our enduring commitment to excellence has made us the go-to choice for businesses seeking premier roofing services in Westminster and throughout Colorado.

Why Choose United Materials?

Unmatched Expertise

Our team of seasoned roofers brings a wealth of experience and expertise to every project. Notably, we lead the industry in employee retention, with our roofing crews averaging 20+ years with us. Whether it's a new construction or a roof replacement for an existing structure, we possess the knowledge and skills to handle various roofing systems with precision.


Get the inside scoop from Beth Gloss, Owner of United Materials, as she explains how United Materials achieves such a stellar employee retention rate.


Comprehensive Commercial Roofing Solutions

Understanding that each commercial roofing project is unique, United Materials offers tailored solutions that cater to your specific commercial roofing needs. From initial assessments to final installation, we provide comprehensive roofing services that ensure the longevity and reliability of your roof.

Reliable. Trustworthy. Experienced.

Our longstanding presence in the industry is a testament to our consistent delivery of high-quality roofing services. We take pride in our portfolio of successful commercial roofing projects, showcasing our ability to meet and exceed our clients' expectations. Notable structures we've roofed include Union Station, the Byron White Federal Courthouse, East High School, and the Denver Botanic Gardens Pyramid.

Indoor Riding Arena

Commercial Roofing Services

Whether constructing a new commercial space or requiring a roof replacement, United Materials ensures the seamless installation of structurally sound and aesthetically pleasing roofs.

Our proactive services identify and address issues before escalation, saving you time and money. Explore RoofGuard, our unique commercial roof maintenance plan, providing priority access after storms.

United Materials goes beyond standard roofing services. Our expertise extends to custom sheet metal work, providing custom solutions to meet the unique requirements of your commercial property.

Trust United Materials for efficient and reliable solutions, closely working with you to choose the right materials with minimal disruption.

Urban Housing Complex

Commercial Roofs We Service

Church Roof
Byron White Federal Courthouse Denver CO.jpg
Union Station Denver CO_edited - Copy_jp.jpg

Cultural Facilities

Green Roofs_edited.jpg
Denver Federal Center Bldg 20 Solar Array_edited - Copy.jpg


Rocky Mountain High School Ft_edited - Copy.jpg
Victorian Detail

Historic Buildings

Talk to a Commercial Roofing Expert

RoofGuard Maintenance Plan

Experience peace of mind with RoofGuard, our unique commercial roof maintenance plan. You gain priority access to inspections and repairs after storms for only pennies per square foot.


This proactive approach ensures the longevity and reliability of your commercial roof, saving you time and costs in the long run.

Black Roof

United Materials Awards

We uphold our mission by working hard every day to deliver value and quality work to our clients, associates, and communities. These accolades are a reminder of our commitment to ethical business practices and high standards.


Our Work

Elevate Your Roofing Experience

At United Materials, we transcend being a mere roofing contractor – we are your dedicated partner, ensuring the success and longevity of your commercial roofing investments.


Our commitment to excellence and a customer-centric approach sets us apart in the competitive roofing landscape.

100+ Years of Quality Horizontal Logo.jpg

Request your free quote today and experience roofing excellence tailored to your commercial roofing needs.

United Materials Endorsements

We are passionate about Colorado communities and the incredible businesses and people within them.

We let our customers do the talking... Hear what they have to say about our expert craftsmanship!

Unted Materials has been our valued roofing partner since the early 1980s. From our first small repair,  we have relied on United for their roofing experience and expertise, and are big fans of their RoofGuard program, where for a small monthly fee we don’t have to worry about roofing repair costs. United, under this program, is very proactive and monitors the condition of the roof and makes repairs, if needed, at no cost - - - it’s all covered.

- Bill Egan, Egan Printing
bottom of page