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Basement Waterproofing in Marietta, PA

In Marietta the water comes up through the floor

River-town brick and stone from the 1800s, with a water table that rises in spring and pushes water up through the slab as readily as in through a wall.

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Interior waterproofing at the footing, in cross-sectionCutaway through soil, a concrete block foundation wall, and the basement floor and framing beside it. Water seeps down through the soil on the left and gold arrows show it pressing against the wall. A green wall vapor barrier runs down the inside face of the block and turns into a sealed cove joint where the floor meets the wall, with a gold wedge marking the joint water would otherwise enter through. Below the floor slab, a green perforated drain pipe sits in a gravel bed at the footing and runs right into a sealed green-lidded sump basin, whose discharge line rises and carries water off to the right, away from the house.GradeWall vapor barrier over blockCove joint, sealedPerforated drain in a gravel bed at the footingDischarge, routed away from the house
Basement Waterproofing in ZIP 17547 · Marietta Borough · Lancaster County, PAOffice: 2348 Harrisburg Pike, Lancaster, PA 17601 · Mon–Sat 7AM–8PM

Waterproofing in Marietta

Susquehanna river terraces

Marietta water comes up. That catches people out after they have spent a season sealing every crack they can find in the wall while the middle of the floor stays damp anyway. In a river town the Susquehanna sets the water table, and through a wet spring that table can sit above the level of your basement slab.

The housing stock makes it more interesting. Much of Marietta Borough is 1800s brick and stone, and those foundations are field stone laid up in lime mortar that has been washing out of the joints for a century and a half. Water under pressure finds exactly those joints. The mortar is usually as much of the problem here as the drainage is, and a system dropped in without touching the wall is half a job.

What goes in on a Marietta property is sub-slab drainage with a sealed high-capacity basin and a battery backup, because a pump three blocks from the river runs many times more often than one three miles inland. Where the stone calls for it we repoint before the drain goes in. In the unfinished spaces we encapsulate as well, so the damp stops migrating up into the first floor.

What we install in Marietta

Sub-slab drainage with a high-capacity sealed sump and battery backup, mortar repointing on stone walls, and encapsulation where the space is unfinished.

Most common call here

  • Damp slab in the middle of the floor, not just at the walls
  • Water rising through the floor rather than running down a wall
  • Crumbling mortar or loose stone in the foundation wall
  • Standing water that stays for weeks in spring
Everything we do in Marietta →

The actual scope

What a Marietta job includes

Every basement waterproofing we install in Marietta, PA follows the same checklist, and you get it in writing before the crew arrives. A dry basement is a drainage problem, not a paint problem. We relieve the water pressure under and beside your foundation and give the water somewhere to go, so the room stays dry through the wettest spring Lancaster County can produce.

  • Interior French drain at the footing
  • Sealed sump basin with battery backup
  • Wall vapor barrier over block
  • Cove-joint and crack sealing
  • Discharge routed away from the house

More of what we do in Marietta

One crew, one warranty, all of it out of the Lancaster office.

How a Marietta waterproofing job runs

Start to warranty

  1. Free inspection and water-path diagnosis

  2. Written scope and fixed price

  3. Install in 1–3 days, most jobs

  4. Lifetime warranty and a wet-season check-in

Dylan and crew were absolutely as professional as I could ask. From the consultation estimate to the completed basement was very quick. They were on time every day complete with a call before they would arrive.
Rob D., Lancaster

Questions from around Marietta

Straight answers

The middle of my floor is damp but the walls are dry. How does that happen?

That's water coming up through the slab, and it's the standard Marietta pattern. When the river sets a high water table the pressure comes from underneath, so it shows up in the middle of the floor and at the joints. Sealing the walls does nothing for it, and sub-slab drainage does.

How high does the Susquehanna have to get before my basement takes water?

It's less about a flood stage and more about the season. A steadily wet spring lifts the water table under Marietta whether or not the river ever leaves its banks, and that's when we get most of these calls. Homes three blocks from the water and homes eight blocks up both see it.

The mortar between the stones in my foundation is crumbling. Can you still waterproof it?

Yes, and the pointing is part of the same job. On the 1800s stone foundations in Marietta Borough we repoint what's washed out, then install the drainage, because putting a system against a wall that's still losing joints just delays the conversation.

My pump runs constantly through spring. Is it undersized or is that normal down here?

Down by the river a lot of run time is normal, but constant is worth checking. We look at the basin size, the pump's actual flow rate and whether the discharge is fighting a check valve that's failing. A sealed high-capacity basin with a battery backup is what we'd size for this ground.

Is it worth encapsulating an old cellar or should I just drain it?

Drain it first, always. Once the standing water and the pressure are handled, encapsulation is what stops the damp from migrating up into the first floor, and in a river-town house that's usually the difference people actually notice upstairs.

Basement Waterproofing near Marietta

Same crew, same routes, same week.

Basement Waterproofing across Lancaster County →

Get a real price on basement waterproofing in Marietta.

Free estimate, no money down, and a lifetime warranty that transfers when you sell the house.

(800) 834-6584