Your Alexandria waterproofing and foundation specialists
Alexandria straddles the Fall Line, which makes it one of the trickiest cities in the region for water. Old Town and the waterfront sit on flat Coastal Plain ground with a high water table just feet below the surface, while the West End climbs onto firmer Piedmont uplands. The right repair in one part of the city is often the wrong one in another.
Alexandria's soils and the Fall Line
Near the Potomac — Old Town, Del Ray, and the waterfront — homes sit on sandy, silty Coastal Plain deposits and historic fill with a water table that can rise within a few feet of the surface after rain or high tide. Farther west, soils transition to denser Piedmont clay. Both extremes push moisture into crawl spaces and the brick-and-stone cellars common in Alexandria's older homes.
Common crawl space & foundation problems in Alexandria
Alexandria has some of the oldest housing in the region. Federal-era and Victorian rowhomes have shallow brick foundations and damp cellars, while postwar West End homes have block crawl spaces. High groundwater near the river means hydrostatic pressure and standing water are common, and tight Old Town lots leave little room for exterior drainage.
- Standing water and high water table near the waterfront
- Damp brick cellars under Old Town rowhomes
- Hydrostatic pressure pushing through foundation joints
- Limited exterior drainage on tight historic lots
- Persistent crawl space humidity in West End homes
Popular services in Alexandria
Neighborhoods we serve in Alexandria
We serve every part of Alexandria, including: Old Town · Del Ray · Rosemont · Beverley Hills · Seminary Hill · Landmark · Eisenhower East · Cameron Station · Arlandria · Parkfairfax. Don't see your neighborhood? We cover the surrounding area too — just ask.