Asphalt Roofing

Asphalt shingles provide long-lasting value. With a variety of styles and colors, we’re able to refresh your existing style with high quality materials and lifetime warranties.

A Leak-Proof Roof

Your roof is more than just shingles. We carefully inspect and install the entire roofing system that exceeds local building code to keep your home insulated, beautiful, and secure.

Each part of a roofing system is designed to bolster a weak point of your roofing architecture, reinforcing areas which are susceptible to leaking.

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01
Wood Deck

A solid wooden base is needed for nailing and creating a strong foundation for the layers of your roof. Removing old roofing materials allows us to address problems such as rotten wood or cracked boards, leaving a strong deck to install your new roof onto.

02
Flashing

Flashing is used to seal and protect joints in a building from water penetration by directing the flow of water away from vulnerable areas. Varieties of flashing which may be used include step, apron, and counter flashing.

03
Leak Barrier

Ice & Water Shield is a 100% watertight membrane that protects your home from extreme weather events that try to drive rain into your home. It is installed at the eaves, valleys, chimney, vents, and skylights, ensuring your roof is completely sealed and protected.

04
Deck Protection

Synthetic underlayment provides an extra layer of protection between your shingles and roof deck. This water resistant layer is lighter and stronger than traditional felt, keeping your roof durable as it wicks moisture away.

05
Drip Edge

Drip edge is an added layer of waterproofing installed around the roof line. This piece of aluminum ensures no damage occurs beneath shingles by sealing and protecting the roof deck from water rollback and driving rains.

06
Starter Shingles

Pre-cut starter strip shingles speed up installation while helping prevent shingle blow-off. These shingles include factory-applied adhesive strips, which ensure enhanced wind resistance and a uniform finish to your roof.

07
Lifetime Shingles

Shingles are vital and the first line of defense in keeping your home protected from the forces of nature. All of our shingles are covered by a Lifetime Warranty, so you can have peace of mind knowing your home is protected.

08
Attic Ventilation

A ridge vent along with ridge cap shingles are installed to help remove excess heat and moisture from your attic. These variables could cause premature aging of your roofing system, but attic ventilation works to prevent this.

Lifetime warranties from the best.

We meet the highest standard in continual training to offer you manufacturer backed warranties. All our roofing projects include a transferrable lifetime warranty.

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GAF Roofing
50 Year Material & Labor
25 Year Workmanship
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Atlas Roofing
50 Year Material & Labor
7 Year Workmanship

The Industry’s Best 2 Shingles

We’ve simplified the selection process for you. These are the two shingles we recommend to our customers everyday.

Atlas Pinnacle Pristine

With 3M Scotchgard Protector
Scotchgard Streak Proof
Best Quality & Long-term Aesthetic
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GAF Timberline HDZ

(INCLUDING TIMBERLINE UHDZ)
LayerLock™ Technology
Best Lifetime Warranty
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GAF Designer Shingles

Interested in a more distinct look? We offer Designer shingles from GAF, covered by the best Lifetime Warranty.

Get a Free Roofing Quote
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Financing made easy.

You won't pay a dime until the project is completed, with payments as low as $99/month.1 Getting approved is quick and easy.

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Take the next step, we’re here to help.

30+ Years’ Experience

Thousands of satisfied home owners across Maryland and DC.

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Lifetime Warranties

Highly certified with Atlas, GAF, Mastic, James Hardie & more.

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Value Focused

A family team proud to deliver excellence at a fair price.

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Trusted by local homeowners.

My husband and I met with Pat Jewell and he was such a pleasure to work with. Very knowledgeable and kind. We felt comfortable with this company.
We are very pleased with the work that Capitol Improvements did and we would highly recommend and use them again in the future.
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Carlos, Yelp Reviews
They had the most competitive prices and did not try and upsell. Their teams are efficient, professional, very clean, and on time.
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Veronica, Google Reviews
Seth and install team were organized and project went smoothly. Entire team was responsive and kept in touch throughout the process.
They replaced my roof including skylights in April 2023 and I am very satisfied. Melinda as my first contact was very professional and got me on the schedule quickly.
It was easy to work with Pat to get a quote. We did both a roof on our house and our shed, we also had new gutters put on our den. The crew was very hardworking and efficient.
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Common Questions

How long do asphalt shingles last?

Most shingles installed now are Architectural shingles. They will come with a manufacturer backed 50yr material and labor warranty if installed by a certified installer that can register your warranty with the manufacturer. View Warranties

What warranty and financing do you offer?

We offer the best manufacture backed warranties for all of our services. Up to 50-year transferrable warranties for roof replacements. View warranties

Our partnership with EnerBank USA lets us offer our clients no money down financing as low as $99 per month. View financing

How long does it take to get my roof?

After an in-home visit and the project quote is accepted, most roofs are installed within 1-2 weeks. A roof replacement in maryland is no different than one in Virginia. the only difference is a roof replacement in Washington DC takes more time due to the specialty roofing normally associated with row homes in the District. The installation of your roof generally takes 1 day. View Gallery