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Crawl Space Encapsulation in Capitol Hill

Victorian rowhouses with brick foundations that breathe moisture.

☎ Call (301) 679-9193

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Tell us what you are seeing — damp smells, mold, high bills, bouncy floors. We come out, look under your home, and give you a straight answer.

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(301) 679-9193
Serving Washington, DC and the DC metro area
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Brick Foundations Were Not Built for DC Humidity

Capitol Hill's Victorian rowhouses sit on old brick foundations with lime mortar. That mortar is softer and more porous than modern materials — it wicks ground moisture straight into the crawl space. Add the neighborhood's low elevation in spots, and you get the classic Hill problem: a crawl space that smells musty from April through October.

The English Basement Complication

Many Hill homes have an English basement with a crawl space section tucked beside or behind it. Moisture moves between the two freely. We treat them as one system — sealing the crawl space while making sure the basement's drainage and humidity are handled too, so you do not fix one side and leave the other feeding it.

What We See Most Here

Mold on floor joists above dirt-floor sections. Crumbling mortar at the base of brick foundation walls. Old, thin plastic sheeting doing nothing. And sump pits from previous owners that were never hooked up right. We sort all of it out.

Call (301) 679-9193 for a free Capitol Hill crawl space inspection.

Nearby areas we also serve

We serve Capitol Hill and these nearby areas:

Frequently Asked Questions

My rowhouse shares walls with neighbors. Does that matter?

Party walls are actually a plus — less exterior wall means fewer moisture entry points. We focus on the front and rear foundation walls and the ground, which is where the moisture comes from.

Can you work around my finished English basement?

Yes. We protect finished areas on the way in and out, and the crawl space work stays contained to the crawl space.

☎ Call (301) 679-9193