About Us

Who We Are

We Are a Leading Internal & External Renovations Company in Bowie, MD

We are based in Maryland and service Annapolis, Arnold, Bowie, Crofton, Davidsonville, Edgewater, Harwood, Millersville, and surrounding areas. Our most popular and highest demand service is roofing installations and repairs.

However, a large part of our business also works in external renovations such as siding replacement, windows & skylights, deck projects and fencing projects.

Roof Installation & Repair

Your roof is your first defense against the elements and should last a long time. Make sure you know what to look for when replacing.

Decks & Fencing

Decks are an extension to your home & a space to host, entertain, relax or celebrate. We specialize in creating these spaces.

Exterior Renovation

Siding, windows, sunlights and more – we specialize in renovation projects on the exterior of your home.


Successful Projects


Team & Counting


Years of experience


Our Core Values


If we say we will do something, we will do it. If we say we will be there, we will be there. Too often this isn’t the case, and it’s a non-negotiable for our team in all the projects we do with each of our clients.

Attention to Detail

The details matter, not just aesthetically, but functionally. Our team takes pride in the details of their work, seen and unseen. We believe that the quality of our work speaks for itself, and we’re confident you’ll agree.


We know that it can be difficult to undertake big projects. We also know how frustrating it can be when companies don’t respond. Our commitment is to be responsive before, during and after your project is complete. 

Our Expert Exterior Renovation Team

home roof repair expert bowie md

Henry Tuck


Henry has over a decade of experience with a wide variety of home improvement projects. He used to build houses from the ground up, and he has passed this expertise on to his team. The GRB Roofing team is second to none in Bowie, MD

expert home roofing contractor

Daniel Zeriselassie


Daniel has worked with Henry since Day 1 helping build GRB Services into what it is today. Like Henry, Daniel has a wide range of exterior home renovation specialties which makes him well-versed to handle any home improvement project!


Marcus Goerdt

Project Manager

Marcus is one of our newest project managers. Welcome him to the GRB Services team!

Mike roof contractor crofton md

Mike O’Connell

Project Manager

Mike is another one of our expert project manager. He will typically be one of the first people on site to help clients with their project of any shape & size!


Crew Leader

Juan has over 25 years of roofing experience!