Capitol Hill Window Repair. Row House Expertise. Historic Glass Done Right.

Yes. The Capitol Hill Historic District is one of the largest in the District of Columbia and is administered by the DC Historic Preservation Office. Window alterations on contributing structures in the district are subject to review, and the guidelines generally prioritize repair over replacement, historic glass character over modern float glass, and maintaining the original light pattern and sash configuration. We are familiar with these guidelines and can advise on what approval, if any, is required for your specific project. For interior-only changes — replacing glass in an existing sash without changing the exterior appearance — approval is typically not required. We confirm the applicable rules during our estimate visit. See also our <a href="/services/window-glass-repair">window glass repair page</a> or get a <a href="/photo-estimate">free photo estimate</a>.

To a significant degree, yes. Original single-pane glass in Capitol Hill homes from the 19th and early 20th century is often cylinder-blown glass with a characteristic waviness and slight distortion that modern flat float glass does not replicate. We stock restoration glass — reproduction antique glass available in several distortion levels — that approximates the appearance of historic glazing. For windows facing a public right-of-way where historic appearance matters most, restoration glass is a much better match than standard float glass. We can show you the options at your estimate visit.

We dispatch the nearest available crew as soon as you call. Board-up service runs 24/7 — if you have a broken window from a break-in, storm, or accident, call our emergency line and we dispatch immediately. We carry plywood and polycarbonate sheeting for temporary board-up, and we schedule permanent glass replacement as quickly as the glass can be sourced and fabricated. For standard Capitol Hill row house glass sizes, permanent replacement is often same-day or next-day.