Baltimore CityS-01
Basement Waterproofing in Baltimore City
Rowhome basements have no side yard to dig from, and often a shared party wall. Interior drain tile and a sealed sump basin work with that, not against it.
Most requestedBefore you call anyone else
- From 44 verified Google reviews.
- MHIC #147538
- Licensed and insured in Maryland — verify it before we start.
- Since 2014
- Ten-plus years on the same clay soil and block foundations.
- 7 Counties
- Baltimore, Howard, Anne Arundel, Carroll, Harford, PG, Montgomery.
- Free Estimates
- On site, in writing, no obligation and no pressure.
What's included
- Interior perimeter drain tile — no exterior excavation or alley access needed
- Sealed sump basin with a primary pump
- Party-wall-safe vapor barrier installation
- Battery backup pump available on request
- Discharge line routed to the street or rear alley, code-compliant
- Full cleanup — patched concrete, hauled debris
Signs you need this
- Water tracking along a shared party wall
- A musty smell in a rowhome basement that never fully airs out
- Efflorescence on old fieldstone or rubble foundation walls
- Water entering at the front or rear wall after heavy rain
How this works
Same process,every service.
- 01
Inspect
Someone walks the site and finds where the problem is actually coming from — not just where it shows up.
- 02
Diagnose
We name the root cause and explain it in plain language, including what happens if you do nothing.
- 03
Written scope
A specific price for a specific fix, in writing, before anyone picks up a tool. No sight-unseen numbers.
- 04
Do the work
Licensed crew executes exactly what was scoped. If something changes behind the wall, you get a call first.
Questions
Straight answers.
- Can you waterproof a rowhome with no side yard?
- Yes — nearly all our Baltimore City work is interior drain tile for exactly this reason. Everything happens from inside the basement.
- Will this affect my shared wall or my neighbor?
- No. The drain system runs along the interior perimeter of your own foundation footing — it doesn't touch the party wall structure itself or require access to the neighboring property.
- My foundation is old fieldstone — is that a problem?
- It changes the diagnosis, not the fix. Fieldstone and rubble foundations move water differently than poured concrete, and we account for that before pricing anything.
Free estimate · No obligation
Tell us what you are seeing.We will tell you what it takes.
Standing water, a hairline crack that keeps growing, a smell that will not leave — describe it and we will schedule someone to look at it. Most estimates go out within a few days of the call.