GRB Services – A Division of Golden Ratio LLC, is your local commercial and residential roofing and home improvement expert. We are located in Bowie, and service cities across Maryland!

Build on Experience

A Roof Contractor with Decades of roofing installation repair and service experience.

Protect your home and family from the elements! We are available 24/7 to help with any roofing or home improvement project.


Projects Successfully Completed.


Years of collective experience.


Team members and growing


Counties and cities in the DMV area

Our Proud Roofing Suppliers

We Are a Certified Contractor
We Are a Certified Contractor

GRB Roofing

Roofing Is Our Specialty

Roof Installation Crofton, MD

Roof Installations & Repairs

Your roof is your first defense against the elements. Don’t push off necessary repairs, schedule your FREE estimate today!

Deck Contractor Crofton, MD

Decks & Fencing

Decks are an extension of your home. Let us help you build the perfect deck! 

Siding Company Annapolis, MD

Exterior Renovations

We specialize in siding, gutters, soffits, windows and skylights, and can help with your next exterior renovation project. 

Company Value Spotlight


With decades of experience and 24/7 availability, GRB is the top local roofing contractor near you!

GRB Roofing & Insurance

GRB Works With ALL Major Insurance Companies

GRB Roofing

Check Out Our Most Recent Projects

We are A+ Rated with the BBB
grb roofing is a five start company on Google
Over 80 positive reviews on Google alone!

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Ready to Work Together? Lets build a project together!

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