Business Details
33 Years
experience
Emergency
services
Trusted Roofing & Home Exterior Solutions in Maryland
RJ Grimes has been a trusted name in home exterior remodeling for over three decades, serving Maryland and Southern Pennsylvania. As a locally-owned, MHIC-licensed contractor (MHIC #87834), we specialize in roofing, siding, window, and gutter installations with a focus on quality craftsmanship and premium materials. Our team holds certifications from industry leaders like GAF, DuPont Tyvek, and WOLF PVC Decking, ensuring expertise in both residential and commercial projects.With a commitment to transparency, competitive pricing, and customer satisfaction, we prioritize clear communication and timely execution. Our 24/7 availability and proven track record of completing projects efficiently have earned us consistent five-star reviews and long-term client relationships.
Services
Roofing
Siding Replacement
Replacement Windows
Seamless Gutters
Deck Construction
Details
- Year established: 1993
Highlights and features
- Certified experts with GAF, DuPont Tyvek, and WOLF PVC credentials
- Over 30 years of local experience in Maryland and Southern Pennsylvania
- 24/7 emergency service for urgent roof and gutter repairs
- Lifetime warranties on select roofing and siding installations
- Transparent pricing with no hidden fees or unexpected costs
Associations and certifications
- GAF
- DuPont Tyvek
- WOLF PVC Decking
What people say
Fantastic job
Professional and responsive
Great service
Highly recommend
Excellent workmanship
Services
Roofing
Our roofing specialists provide expert installations, repairs, and replacements using premium materials like GAF shingles. We address storm damage, leaks, and aging roofs while ensuring energy efficiency and enhanced curb appeal. With lifetime warranties available, our team prioritizes durability and protection for residential and commercial properties.
Siding Replacement
We install energy-efficient vinyl, Hardiplank, and composite siding that reduces maintenance costs and improves insulation. Our Tyvek-certified installations create weather-resistant barriers while enhancing aesthetic appeal with customizable colors and finishes for long-term durability.
Replacement Windows
Our energy-efficient window upgrades lower utility bills and improve home comfort. We offer low-maintenance, insulated frames with tilt-in convenience, ensuring optimal performance and aesthetics tailored to your property's architectural style and budget requirements.
Seamless Gutters
Custom-fitted seamless aluminum or copper gutters prevent water damage through proper drainage solutions. Our installations include gutter protection systems and repair services to maintain structural integrity and prevent foundation issues caused by improper runoff.
Deck Construction
We build durable WOLF PVC and Trex composite decks designed for Maryland's climate. Our custom designs maximize outdoor living space while using premium materials that resist fading, cracking, and weather-related wear for long-term enjoyment and property value.
People
Robert Grimes
Partner
Robert Grimes founded RJ Grimes Inc. after a decade managing over 250 home construction projects. With a Construction Management degree and hands-on expertise, he oversees project execution and quality control.
John Hanna
Partner
John Hanna brings 20 years of remodeling industry experience, specializing in project design and estimation. A University of Maryland graduate, he manages client consultations and ensures tailored solutions for roofing and exterior projects.
Questions
What areas do you serve?
We provide exterior remodeling services throughout Maryland, including the Eastern Shore, and Southern Pennsylvania counties.
Do you offer emergency services?
Yes, our team is available 24/7 for urgent roof, gutter, and storm damage repairs to protect your property immediately.
Are your contractors certified?
Our team holds certifications from GAF, DuPont Tyvek, and WOLF PVC, ensuring industry-leading expertise in all installations.
What payment methods do you accept?
We accept major credit cards and checks. Payment plans may be available for larger projects upon approval.
How long does a typical project take?
Most roofing or siding projects complete within 1-2 days, while deck installations typically require 3-5 days depending on complexity.
Do you provide warranties?
Yes, we offer lifetime warranties on select roofing and siding products, with workmanship guarantees on all installations.
Reviews (1)
Jake Window
Jun 01, 2015
Report
They did a big job for us roofing, siding, and windows. It was done in a timely matter and the job was great. I would recommend them to anyone.
