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.

Common Questions

What kind of roof do I have?

Most people in our service area have an asphalt shingle roof. If you can see your roof you'll be able to distinguish if it's either asphalt or metal. If you can't see your roof and you live in a row home, you likely have a flat roof.

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. The installation of your roof generally takes 1 day.

Done photo of new roof.
Photo of a completed shingled roof from GAF installed in Bowie, MD.
Installation photos of a new GAF Timberline HDZ Shakewood color roof.
Drone photo of new roof installation in Germantown, MD.
Photo of a mixed shingled and flat roof in DC.
Photo of finished atlas asphalt shingled roof.

Roofing System

Your roof is more than just shingles. We carefully inspect and install the entire roofing system 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.


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. 



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.


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.


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.


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.


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.


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.


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.

Roofing System photo.

Top shingles for your home.

Atlas Pinnacle Pristine shingles with 3M Scotchgard Lifetime Stain Warranty.

Atlas Pinnacle Pristine

Atlas Pinnacle Pristine with Scotchgard Protector is the only architectural shingle to offer a lifetime warranty against streaking. No more ugly streaking, plus strong wind performance at a good value makes this a great choice for many homeowners.

GAF Timberline HDZ roofing shingles.

GAF Timberline HDZ

Supplied by GAF, Timberline HDZ Architectural shingles are built to last and America’s #1 selling shingle. These shingles feature a  unlimited wind warranty and GAF's material, labor, and workmanship warranty coverage.

GAF Designer Shingles.

GAF Designer

Replicate the look of hand-cut cedar shakes or a natural slate roof, these shingles make your home distinct from any other.

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 Master Elite logo signifying our certified installer status.
GAF Roofing
50 Year Material & Labor
25 Year Workmanship
Atlas Pro+ Gold Select logo signifying our certified installer status.
Atlas Roofing
50 Year Material & Labor
7 Year Workmanship

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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.
Kelly, Google Reviews
We are very pleased with the work that Capitol Improvements did and we would highly recommend and use them again in the future.
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.
Veronica, Google Reviews
Seth and install team were organized and project went smoothly. Entire team was responsive and kept in touch throughout the process.
R Mayo, Google Reviews
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.
Yasmin, Google Reviews
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.
Ariana, Google Reviews