A wet basement in Pittsburgh often means the outside of the foundation cannot be reached. Interior waterproofing solves this by running drainage tile along the slab perimeter, collecting water before it spreads across the floor, and pumping it away. Pittsburgh Concrete sizes and installs the complete system, from trench to sump pit to sealed wall. Free written estimate included.
Exterior waterproofing is the gold standard when you can dig around the outside of the foundation. Many Pittsburgh homes, though, sit on tight lots with decks, garages, or mature landscaping that makes exterior work impractical or too costly. Interior waterproofing is the proven alternative that stops the leak from the inside.
The system works by intercepting groundwater before it reaches the slab. We cut a trench along the basement perimeter, lay drainage tile on stone, slope it to a sump pit, and install a pump to move water out. The wall is sealed at the slab line so water drops into the tile instead of bleeding across the floor. The wall itself dries inward, and the basement becomes usable again.
We identify where water reaches the slab, measure the existing concrete thickness, locate the best sump pit position, and confirm the discharge path before cutting anything.
Cut and excavate the perimeter
The basement floor is cut along the wall line, the trench is dug to the correct depth, and any failed or clogged old drainage is removed so the new tile sits in clean stone.
Lay tile, set pit, install pump
Drainage tile is placed on a stone bed, sloped toward the sump pit at the low point, the pump and discharge line are connected, and the system is tested with water to confirm flow.
Backfill, pour, and seal the wall
Stone backfill is compacted around the tile, the slab is poured to lock the system in place, and the wall face is sealed so groundwater cannot cross the slab surface.
The right tool for the right job
Interior Waterproofing Solves a Specific Problem
Interior waterproofing is not a foundation repair. If the wall is cracking structurally or if there is a known exterior cause that can be reached, exterior foundation waterproofing is still the better choice. Interior systems excel when the outside is off-limits and the goal is a dry basement floor.
The pump is the only moving part you maintain, and it runs only when water arrives. In Pittsburgh's spring melt season, a battery backup pump keeps the basement dry even if the power goes out. The basement stays dry, finishes stay intact, and the system has been proven through decades of use in homes just like yours.
Drainage tile, sump pits, pumps and when interior is the right choice for a wet basement.
For its job, yes. The two systems do different work. Exterior keeps water from ever reaching the wall; interior accepts that water reaches the wall, intercepts it at the slab perimeter and pumps it out. When excavating outside is impractical, the interior system is the right one.
An interior system needs a sump pit and a pump to move collected water out. A battery backup pump is strongly recommended in Pittsburgh, where spring runoff and power outages can overlap. We size the pump and pit to the inflow we measure.
The perimeter has to be opened up, which means baseboards, lower drywall and any finished flooring against the wall come off in the work zone. We coordinate that carefully so the rest of the basement is undisturbed.
It will intercept the water at the slab so the floor stays dry, but a leaking wall crack itself is a separate fix; pair this with crack repair or, if the crack is structural, foundation crack repair from the engineered side.
A typical residential interior system takes about a week from cut to closed slab, depending on the perimeter length and how much of the basement has to be uncovered to reach the work. The full schedule is in the quote.
Homeowner reviews
What Pittsburgh Homeowners Say About Their Interior Waterproofing
We could not dig up the front of the house. Interior system put in, sump pit cut, dry basement two springs running. Honest about the system being the right tool here.
S. F.
Pittsburgh
★★★★★
Existing finished basement, leaks in three corners. They opened only what they had to, installed the tile and sump, closed it back up clean. The pump runs, basement is dry.
E. I.
Aliquippa
★★★★★
They explained why interior was the answer in our situation and not just upselling exterior. The system has worked through every melt since. Trust earned.
Q. P.
Monroeville
★★★★★
Battery backup pump was their recommendation and we are glad we listened. Lost power for a day this spring; basement stayed dry the whole time. Worth every dollar.
X. B.
Mckeesport
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Describe where the basement leaks, how often it happens, and what is finished around the perimeter. We visit free, measure the slab and inflow, and send a written quote within one business day.
