The Street Drained Into the Front Yard: A French Drain for a Below-Grade Home in North Potomac

A North Potomac home sat below road grade and the front yard flooded every storm. See the French drain that intercepted the water and carried it to the rear.

Exterior drain tile in clean stone alongside the drain board — Ashburn, VA

Jun 2026

By S. Altan Atasoy, Civil Engineer Case Studies No Comments

Wet Carpet in a Basement Bedroom: Sealing an Ashburn Foundation From the Outside

An Ashburn basement bedroom had a wet carpet from freeze-cracked CMU walls. Here's how we sealed it from the outside with a full WallShield exterior system and drainage.

Dried, reinforced large basement with wall vapor barrier and steel support posts — Manassas, VA

Jun 2026

By S. Altan Atasoy, Civil Engineer Case Studies No Comments

When You Can’t Cut the Whole Slab at Once: A High-Water-Table Basement off I-66 in Manassas

A very large Manassas basement off I-66 had water on three corners from a high water table. Here's how we staged the slab cut, reinforced it, and added dual sump pumps to dry it out.

Finished, dry basement with restored slab and wall vapor barrier — Silver Spring, MD

Jun 2026

By S. Altan Atasoy, Civil Engineer Case Studies No Comments

Cracks in the Corner, Mold in the Air: Drying a Silver Spring Townhouse From the Inside

A Silver Spring townhouse basement had a strong mold smell, corner cracks, and high-water-table seepage. Here's how our FootingShield interior drain and sump pump dried it out in nine days.

A DMV Waterproofing crew member excavating along a brick foundation wall down to the footing in Northwest DC

Jun 2026

By S. Altan Atasoy, Civil Engineer Case Studies No Comments

Worn Mortar, Wet Floor: Sealing a 1930s Brick Foundation From the Outside on Connecticut Avenue

A 1930s brick foundation on Connecticut Ave NW had wet floors, mold and worn mortar. Here is how we sealed and drained the whole wall from the outside.

A DMV Waterproofing crew member in the excavated trench beside a foundation wall sealed with a cementitious waterproofing coat in Bethesda, MD

Jun 2026

By S. Altan Atasoy, Civil Engineer Case Studies No Comments

Water on Three Sides: Sealing a 1940s Block Home From the Outside on Massachusetts Ave

A 1940s block-foundation home on Massachusetts Ave had water on three sides. How we sealed two walls from the outside and why the third needed a different fix.

The Street Drained Into the Front Yard: A French Drain for a Below-Grade Home in North Potomac

Wet Carpet in a Basement Bedroom: Sealing an Ashburn Foundation From the Outside

When You Can’t Cut the Whole Slab at Once: A High-Water-Table Basement off I-66 in Manassas

Cracks in the Corner, Mold in the Air: Drying a Silver Spring Townhouse From the Inside

Worn Mortar, Wet Floor: Sealing a 1930s Brick Foundation From the Outside on Connecticut Avenue

Water on Three Sides: Sealing a 1940s Block Home From the Outside on Massachusetts Ave

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