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(314) 604-0019

SINCE 1958

Family-owned.
Built on trust.

Third-generation roofers serving St.
Louis homeowners with the care and craftsmanship your home deserves.

Get a Free Quote Today
Roof Installation

WHO WE ARE

Roofing built on relationships

We don't take on more than we can handle, because your roof deserves our full attention, not a spot in a queue.

See Our Process

Our Services

From detailed inspections to full storm recovery, we're with you every step of the way.

Storm Recovery

Skip the headache of coordinating repairs and fighting insurance. We’ll handle your entire claim.

We Can Help
Residential Roofing

Full roof replacements, repairs, and upgrades backed by warranties you can count on. Owens Corning and Malarkey Preferred Contractor.

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Commercial Roofing

Reliable commercial roofing, including single-ply membrane systems, for property managers who need the job done right, without the oversight headache.

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RECENT WORK

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Hear From Our Neighbors

At all times, Alex's communications were prompt and professional.

"Started by requesting a bid through their website over the weekend. Alex reached out Tuesday morning and by Friday we had a signed contract. At all times, Alex's communications were prompt and professional. On installation day, the crew arrived at 7am and completed the job that day. They worked very hard and did an excellent job cleaning up. The materials used were first-rate. Based on our experience, RGS Roofing should be your preferred supplier!"

Jeff

HOME OWNER

Highly recommend!

"Three years ago they did my entire roof, gutters and downspouts also coordinated a contractor to do new siding. It looks amazing! Alex is attentive to any follow up questions and handled everything with the insurance company. It was a smooth and easy transaction!
When we decided we needed to reroute one of the downspouts this week. Alex was again very helpful to get the part needed and make the change quickly. Highly recommend!"

Cheryl P

HOME OWNER

It was honestly a breath of fresh air working with someone so dedicated and skilled.

"I had an excellent experience with Ray Gilbert & Sons! Alex, the owner. He responded quickly to all of my questions and was eager to get the job done right. It was honestly a breath of fresh air working with someone so dedicated and skilled. I was so impressed that I even referred my neighbor to him. Supporting small businesses like this one is always a win in my book. Highly recommend Alex and his team for any roofing needs!"

Brent

HOME OWNER

RGS is the most honest, straight forward contractor I’ve ever dealt with.

"They do exactly what they say and they give you multiple options. From my experience (2 full exterior renovations by them and 2 from others) they do not cut corners and build better than code. I have them to many friends, family and neighbors, and have never had anyone say a bad thing about them or their work. I won’t ever use another contractor for any work on my home. Highly recommend Alex and his team."

Richard

HOME OWNER

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EVERY PROJECT TELLS A STORY

Delaney and Drew had just bought their first home and welcomed their first baby. The roof was in rough shape, but between a new mortgage and a newborn, a replacement wasn't in the cards. So in January 2026, we gave them a brand-new, upgraded roof at no charge. Because being part of a community means showing up when it counts.

Certified Pro Contractor - Malarkey Roofing
3M Smog-Reducing Roof Specialist
Better Business Bureau
Shingle Sales Specialist - 3M ScotchGard Protector
Fortified Wise Professional
National Roofing Contractors Association Member
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