Windows & DoorsSince 2017
L-102 Washington, DC

Doors, windows and remodeling in Washington, DC.

Rowhouses, historic districts, tight access and rear additions opening to small gardens. DC work rewards planning.

Elevation of a typical Washington DC brick rowhouse facade showing front windows and entry door subject to historic review
A typical DC rowhouse. Street-facing windows and doors in historic districts need HPO clearance; rear openings are usually easier to change.
Short answer

DDA Construction installs, repairs and maintains doors and windows in Washington, DC, including specialty systems such as lift-and-slide, multi-slide and pivot doors, and provides remodeling and painting. In DC, building permits come from the Department of Buildings, and historic properties need Historic Preservation Office clearance for permitted exterior work such as window replacement.

Key facts
Permit officeDC Department of Buildings (DOB)
Historic propertiesHPO clearance is part of the building permit
Window replacementListed among work that needs a permit on historic property
Common house typeBrick rowhouse

Historic districts

Large parts of the city are historic districts or landmarks. The DC Office of Planning explains that historic preservation review is needed when a building permit is required for work affecting the exterior appearance of a historic property, and there is no separate preservation permit: HPO clearance of the building permit is the approval. Its guidance lists window replacement among the work that needs a permit. Front facades usually get the closest look; rear walls often have more flexibility.

Working in rowhouses

Rowhouse projects bring narrow access, shared walls and deliveries through the front door. Large glass panels for a rear wall have to be planned for how they reach the back. A rear addition or a new opening to the garden is where multi-slide, bi-fold and lift-and-slide doors fit best.

Before and after elevation of a brick wall where a window opening is enlarged into a patio door with a new header, king and jack studs and a sloped sill pan
Opening a rear wall to the garden follows the same steps as any window-to-door conversion.

What we do in DC

Specialty doors and windows, repair and maintenance, new openings to the rear, remodeling and painting. DC home improvement contractors operate under a DC basic business license, so ask any contractor for theirs.

Towns and neighborhoods we serve

  • Northwest
  • Georgetown
  • Capitol Hill
  • Chevy Chase DC
  • Cleveland Park
  • Petworth
  • Brookland
  • Navy Yard
  • Shaw
  • Logan Circle

Questions

Do I need a permit to replace windows in a DC historic district?

Window replacement on historic property is listed among work that needs a building permit, with Historic Preservation Office clearance as part of it.

Can I put a large glass door on the back of my rowhouse?

Often yes. Rear walls usually have more flexibility than street facades, but check whether your property is historic and plan delivery access for large panels.

Do you work across all of DC?

Yes, including Northwest, Georgetown, Capitol Hill, Chevy Chase DC, Cleveland Park, Petworth and Brookland.

Sources

  1. DC Office of Planning: Building permits for historic property

Written and reviewed by DDA Construction · Updated September 2026

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