Number 1: Home Additions in Northern Va
on GoogleMcLean, VA
Ideal Construction builds home additions in McLean and across Northern Virginia.
(703) 241-1411 8200 Greensboro Dr Ste 900, McLean, VA 22102
Home addition contractors in Washington, DC
The 10 home addition contractors from Google's results for Washington, DC, District of Columbia, ordered by Google rating weighted by review count. No firm pays to be listed or ranked.
Last updated
- Bump-out
- $26,500 – $63,500small single-room extension
- Room addition
- $85,000 – $212,000ground floor, finished
- Second-story addition
- $159,000 – $424,000whole or partial floor
- Washington, DC vs US
- +6%above the US median
Licensing in District of Columbia. DC requires a home improvement contractor license from the Department of Licensing and Consumer Protection (DLCP).
Number 2: Discover The Best Home Remodeling Addition Ideas in ...
on GoogleSilver Spring, MD
A Silver Spring, Maryland remodeling company handling bathroom renovations and home additions for homeowners in and around Washington, DC.
(301) 933-5070 9329 Georgia Ave, Silver Spring, MD 20910
Number 3: Home Remodeling and Renovation Services
on GoogleWashington, DC
Home Remodeling and Renovation Services builds home additions for houses in the Washington, DC area.
(202) 528-2108 623 5th St NE #6, Washington, DC 20002
Number 4: Cost Considerations for House Extensions in Washington ...
on GoogleHighland, MD
Winthorpe Design & Build plans and constructs house extensions for homeowners in Washington DC and Maryland. Working from Highland, Maryland, the firm handles both the design and the building phases of projects that add living space to existing homes.
(301) 854-2092 13050 Wainwright Rd, Highland, MD 20777
Number 5: Moore Construction Group
on GoogleAlexandria, VA
Moore Construction Group remodels bathrooms in Brookland and other parts of Washington, DC, working from Alexandria, Virginia. Bathroom projects often aim for a spa-style space, and the company also builds home additions.
(703) 960-0253 913 Duke St, Alexandria, VA 22314
Number 6: Zen Renovations
on GoogleWashington, DC
Zen Renovations is a design-build firm in Washington, DC operating design studios on Capitol Hill and in Takoma Park. Designers, project managers and trade crews on staff handle whole-home renovations, additions, kitchens and bathrooms, including projects subject to DC permits and historic-district review.
(202) 643-1889 117 Carroll St NW, Washington, DC 20012
Number 7: ABC Design and Build
on GoogleSpringfield, VA
ABC Design and Build is a home addition contractor in Springfield, Virginia.
(703) 912-4244 6715 Backlick Rd #204, Springfield, VA 22150
Number 8: Are Home Additions Worth The Investment?
on GoogleChevy Chase, MD
Wentworth is a home addition contractor serving Chevy Chase, Maryland.
(240) 395-0705 8401 Connecticut Ave Ste 310, Chevy Chase, MD 20815
Number 9: Home Additions That Add Value
Washington, DC
Blue Collar Scholars builds home additions across Maryland, Virginia and Washington DC. Projects include kitchen expansions, new bathrooms and primary suite additions, each designed to match the style of the existing house.
Number 10: home additions dc
Washington, DC
We Design Build is a Washington DC design-build company that carries home additions from first concept through construction. Its work centers on adding rooms and space to existing houses for growing families and homeowners who want more room without moving.
What home addition contractors charge in Washington, DC
In Washington, DC, a bump-out typically costs $26,500 – $63,500. Remodeling labor in Washington, DC runs about 6% above the US median, which accounts for most of the difference from the same project elsewhere.
How to choose between them
- Check the license yourself. Where District of Columbia or Washington, DC licenses this work, the licensing board's own lookup confirms a license number in a minute. Do it before you sign, not after.
- Get three bids on the same scope. Written down, split into labor, materials, allowances and anything structural. Most people compare a total against a total and end up choosing between two different projects.
- Ask what is not included. Permits, debris removal, fixture and finish allowances, and repairs after demolition are the four that turn a cheap bid into an average one.
- Never pay a large deposit up front. A deposit to order materials and hold a start date is normal. Half the total before anyone shows up is not.
How this list is ordered
These are the firms from Google's results for "home additions washington dc", with directories, chains and suppliers removed. They are ordered by Google rating weighted by review count, and the ratings shown are Google's. No firm pays to be listed or ranked. The list was last updated in October 2026.
Home addition contractors in Washington, DC: common questions
Do I need an architect for a home addition?
Usually yes, or a design-build firm with in-house design. Additions need stamped structural drawings for the permit in most places, and zoning review on setbacks, height and lot coverage.