A new entry door is an investment in the safety, comfort, and enjoyment of those inside your home, and an opportunity to create a more welcoming entry experience while increasing curb appeal.

Common Questions

What types of doors do you install?

We install entry doors, patio doors, and storm doors in Maryland and Washington DC.

What materials are your doors made of?

We work with multiple manufacturers to offer you doors that fit your needs. Steel, Fiberglass, Stainable Fiberglass, and Premium Wood-Clad Aluminum Doors are all available.

A custom wooden stained half-round hobbit front entry door.
We installed a custom historic front entry door in Washington, DC.
A pre-finished fiberglass front entry replacement door installed in Bowie, MD.
A wooden 3/4 lite front entry door installed in Annapolis, MD.
A realistic wood looking fiberglass front entry replacement door installed in Rockville, MD.
A painted fiberglass front entry replacement door installed in Annapolis, MD.

Door Features

Quality Brands

We offer quality entry doors from Provia and Jeld-Wen, and custom milled doors depending on the application.

Versitile Options

Deciding on options like material, style, color, jamb size, and energy rating can be fun, but also overwhelming. We'll help you find the right door for your home and budget.

High ROI

Doors provide your home with the highest return on investment for a home improvement project. Improve curb appeal and total value with a single change.

A pre-finished fiberglass front entry door.

Let's get your new door installed.

Get a Door Quote

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.
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.
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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