A Roof Built for Business

Commercial roofing tailored to your building and its needs.
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CHECK OUR PROJECTS

Rated 4.9/5 by 4.900+ clients

Flat roof with dark membrane next to a grey ribbed roof section
Dark flat roof membrane with a vent stack at sunset, flat roofing in Aurora
Flat roof with grey granulated surface and black pipe supports
Large white flat roof overlooking houses in the distance
White flat roof with skylight and rooftop units on a commercial building
White commercial flat roof with air handling units and skylights
Aerial view of a large warehouse with a flat roof

ABOUT

TheOne Commercial Flat Roofing

TheOne Commercial Flat Roofing is a commercial roofing company focused on practical solutions for business properties. Our team assesses each roof, explains the available options, and carries out flat roofing projects with attention to drainage, durability, and the building’s requirements. If you’re comparing commercial roofing contractors, we’re ready to discuss what your property needs.
Dark flat roof with a metal vent stack beside a grey ribbed roof

REQUEST AN ESTIMATE

Let’s Talk About
Your Roof

Tell us about your building and what’s happening with its roof. We’ll review the details, answer your questions, and discuss the next steps.
Roofing solutions for your business.

SERVICES

Roofing Solutions for
Commercial Properties

Aerial view of a commercial building with a flat roof, roofing solutions

FLAT ROOF SERVICE

Commercial Roof Installation

We install commercial roofing systems selected to suit your building’s structure, daily demands, and long-term performance needs.
Grey ribbed roof panels with a chimney-style vent, commercial roof installation

FLAT ROOF SERVICE

Commercial Roof Replacement

We replace aging or damaged commercial roofs with systems chosen for reliable protection and the needs of your property.
White flat roof on a commercial building, commercial roof replacement

FLAT ROOF SERVICE

Commercial Roof Maintenance

Regular inspections and preventive maintenance help identify developing issues and keep your commercial roof in good condition.
Grey flat roof membrane with a vent housing, commercial roof maintenance

FLAT ROOF SERVICE

Commercial Roof Repair


We locate the source of roofing problems and make targeted repairs to restore protection to your commercial building.
Gravel-surfaced flat roof with a vent cap, commercial roof repair

FLAT ROOF SERVICE

Flat Roofing Services


We install, repair, and maintain flat roofing systems with attention to drainage, seams, and vulnerable roof areas.
Flat roof with parapet edge and shadows, flat roofing services

FLAT ROOF SERVICE

Emergency Commercial Roofing Services

When urgent roof damage threatens your building, we respond to assess the problem and address immediate concerns.

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Our Portfolio

VIEW FULL GALLERY

COMMERCIAL ROOFING

Keep Your Building Covered

From a persistent leak to a roof that’s nearing the end of its service life,
we’ll help you identify the work your building needs and plan the next steps.
DISCUSS YOUR ROOF

OUR PROCESS

How We Work

1

Roof assessment

We inspect the roof and discuss your concerns.
2

Clear proposal

We explain the recommended work and materials.
3

Roofing work

Our crew completes the agreed installation or repair.
4

Final review

We check the work and walk you through the result.

Testimonials

What Clients Say

We had several questions about the condition of our roof, and the team took the time to explain what they found. The proposal was clear, and we knew what to expect before work began.
— Michael
Our flat roof needed attention, but we weren’t sure how extensive the work would be. The team walked us through the options and kept us updated as the project moved forward.
— Sarah
Communication made a real difference for us. We received clear answers, knew when the crew would be on-site, and had a chance to review the completed work together.
— Daniel