Residential Roofing
Energy Efficient

We Have Your Home Covered.

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When it comes to the protection of your family, nothing is more important than the integrity of your roof – expertly installed with quality materials. 


Siding is a great investment for your home, protecting and beautifying, while adding character to your home’s exterior. 


Upgrading to energy efficient, easy to operate windows increases the value of your home, provides a clear view of property, and lower energy cost.

We believe that your home deserves our commitment to deliver the highest quality workmanship and the finest materials.

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GAF Certified Roofing Contractor

CertainTeed Certified ShingleMaster™


RJ Grimes has been improving the value of homes throughout Maryland and Southern Pennsylvania for a quarter of a century. As a locally-owned and operated home improvement contractor, RJ Grimes is a fully bonded, insured and MHIC licensed contractor (MHIC #87834). We take pride in our solid record of providing residential roofing, siding, window and gutter installations and repairs. Read More

We Are a GAF Certified Roofing Contractor

We are honored to be included in the roofing contractors that have earned the prestigious GAF Certified Roofing Contractor designation. To become and maintain our factory-certified status, RJ Grimes has certified that we are: • Properly licensed in the states that we perform roofing work • Fully insured for the protection of our customers. • Have a proven reputation for providing quality roofing services • Committed to Ongoing Professional Training to ensure quality installation Choosing RJ Grimes as a GAF Certified Roofing Contractor is your assurance that you’re working with a quality, reputable, and dependable professional contractor.

We are a CertainTeed Certified ShingleMaster™

As a ShingleMaster™ Contractor, we are focused on superior workmanship and customer satisfaction. This is certified CertainTeed roofing credential, and represents the highest standards of excellence, quality and knowledge in the shingle roofing industry. The ShingleMaster credential assures: • Employing a Master Shingle Applicator-qualified workforce • Eligible for the SureStart PLUS extended warranty coverage • Your ShingleMaster™ has shown extensive knowledge of shingle installation When selecting RJ Grimes for your roofing needs you can be assured that you’re working with a company that is professional and knowledgeable.


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