Flat Roof St. Louis & St. Charles County
Flat Roof Installation & Repair
Donnelly Brothers Roofing specializes in expert flat roof installation and repair for residential and light commercial buildings. From garages to additions to full-scale roof replacements, we deliver durable, weather-resistant systems built to handle Missouri’s toughest conditions.
Smart, strong solutions for flat and low-slope roofs.
Donnelly Brothers Roofing specializes in expert flat roof installation and repair for residential and light commercial buildings. From garages to additions to full-scale roof replacements, we deliver durable, weather-resistant systems built to handle Missouri's toughest conditions.
Weather-Resistant & Watertight
Midwest weather is no joke—so we build flat roofs that hold up. We ensure every roof is sealed tight, properly sloped, and built to resist pooling and leaks.
Reliable Flat Roof Repairs
Whether it’s a puncture, blistering, or water intrusion, we act fast to identify the issue and deliver lasting repairs that restore your roof’s integrity.
No Shortcuts, Just Solid Work
Every project gets the same commitment to quality and detail. No rushed jobs. No corner-cutting. Just roofing done right the first time.
What Our Customers Are Saying. Our Reviews
Our work speaks for itself. Read what our customers have to say about our exceptional mulching and resurfacing work.
More ReviewsI couldn’t be happier with my experience working with Donnelly Brothers Roofing. From the moment I reached out for an estimate, Matt was prompt, professional, and incredibly knowledgeable. They walked me through every step of the process, answered all my questions, and made sure I felt confident in the work being done.
The crew showed up on time, worked efficiently, and left my property spotless when they were done. The new roof looks amazing—top-notch quality and craftsmanship. You can tell they take pride in what they do.
If you’re looking for a trustworthy, reliable, and skilled roofing company, look no further. I highly recommend Donnelly Brothers Roofing and would absolutely use them again!
Matt handled our roof and siding years ago, did a fantastic job!
Estimate Request Form
To request an estimate, please fill out the form or call (636) 487-7727.
