Historic foundations in Washington, DC range from rubble stone to soft brick — materials that require compatible repair methods very different from modern concrete work. The specialists below understand how these systems were designed to breathe and flex.
Tip: Modern hydraulic cement is not compatible with historic brick and stone foundations. Ask specifically about material compatibility.
Modern hydraulic cement and polyurethane foam are frequently used in historic foundations — and frequently cause long-term damage by trapping moisture in stone or brick that was designed to breathe.
Read the foundation guide →20 yrs · 91/100 historic score · Washington, DC
Old City Foundation Specialists repairs stone and brick foundations on historic DC properties without compromising their structural integrity or historic character. Our engineers are experienced in the unique soil conditions of the DC metro area.
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Historic homes in Washington, DC require specialists who understand period-appropriate materials and methods. Our foundation specialists have been vetted for experience with pre-1940 construction techniques.
Washington, DC has a rich architectural heritage. When hiring for historic work, always ask about experience with your specific home type, local historic district requirements, and whether they use period-appropriate materials.