Most wet basement calls in Dunmore fall into three buckets: water pushing up through the cove joint where floor meets wall, water seeping through a hairline vertical crack in a poured wall, or a sump that is failing because of sediment and PPL power cuts. On a Bucktown or Hilltop stone-foundation house, water is almost always the cove joint because the mortar bed between the stones and the floor has washed out decades ago. On the postwar block foundations down toward Smith Park, it is usually a crack. We flashlight the full perimeter, chalk-mark the active wet lines, and give you a plain-English cause before we price anything.
Lackawanna County is a hundred percent mine country. From downtown Dunmore up through the Monsignor McHugh neighborhood and across to Jessup and Olyphant, you are sitting on top of abandoned anthracite workings. Subsidence drops the ground, cracks slab-on-grade floors, and shifts the water path under your footings. Add pyrite shale fill, which was dumped in a lot of the 1950s and 1960s subdivisions around Dunmore Corners, and you get a chemical reaction that heaves the concrete floor. Our interior perimeter drain is designed for that: 3 inch perforated SDR pipe, 8 to 10 inches deep in washed 3/4 inch stone, bedded under the slab so it moves with the floor instead of fighting it.
Winter here runs in the teens to low 20s from December into March and we average 50 inches of snow. Spring thaw and heavy February rain back up against footings because the ground stays frozen 36 inches down and water has nowhere to go but your basement floor. The failure pattern we see most is a sump pump that handled things fine in October seizing up in late March when the discharge line freezes and the pit overflows. We install the discharge line pitched at 1/4 inch per foot with a freeze guard fitting so it keeps running through the freeze-thaw cycle.
The mistake we see most from cheap contractors in NEPA is skipping diagnosis and jumping straight to an exterior excavation quote. An exterior dig in Dunmore runs 15,000 to 30,000 dollars because of depth and access, and it is the right call maybe 1 time in 10. The other 9 times, an interior perimeter drain tied to a quality sump stops the water for half that money. We quote what actually fixes it. Every system we install gets water-tested with a garden hose against the footings before we backfill the trench, and you get a transferable workmanship warranty in writing.
What we handle
Interior Perimeter Drain System
The core fix for most Dunmore wet basements. Saw-cut the perimeter, trench 8 to 10 inches deep, install 3 inch perforated pipe in washed stone, tie it to a sump pit and discharge line. Relieves hydrostatic pressure at the cove joint.
Exterior Excavation Waterproofing
Full dig to the footing, exterior wall cleaning, hydraulic cement repair, Delta-MS dimple membrane, new drain tile and washed stone backfill. The right call when an exposed basement wall is cracked or bowed on the outside and the grade cannot be fixed another way.
Cove Joint Water Control
The number one leak point in older NEPA stone foundations. Water pushing up where the floor slab meets the wall. We install a WaterGuard-style channel system that captures the water before it hits the floor and routes it to the sump.
Wall Vapor Barrier and Dimple Board
Ten mil poly or 10 mm dimple board hung from the top of the wall to the drain system. Stops wall seepage from blackening finished drywall and keeps the basement humidity down below 55 percent year-round.
Emergency Flooded Basement Response
Same-day pump-out and inspection for actively flooding basements in Dunmore, Scranton and Clarks Summit. We pull the water, locate the entry point, and give you a repair scope on the first visit.
Commercial Basement and Crawl Space Waterproofing
Light commercial drain systems for Dunmore storefronts, Keystone Industrial Park outbuildings, rental properties and multi-unit basements across Lackawanna County. Scalable linear foot pricing for larger perimeters.
Sump Pit Rebuild
Old sumps were often a 5 gallon bucket set in the corner. We pull the old pit, excavate a proper 18 by 24 inch basin, set it in washed stone, tie in the drain lines, and install a sealed airtight lid to keep radon and moisture out of the basement air.
How the job goes
1. Free Phone Intake
You call, we ask 4 or 5 quick questions. Age of the house, neighborhood, where the water is coming in, what you have tried. You get a likely cause, a price band, and an inspection slot, usually inside 48 hours for Dunmore and the immediate 18512 and 18510.
2. On-Site Inspection
Foreman walks the full perimeter, flashlights every wall, chalk-marks active seepage, checks the sump pit and the exterior grading. Full inspection runs 45 to 90 minutes and you get a plain-English diagnosis before we leave.
3. Written Scope and Quote
Linear feet of drain, discharge points, sump model, backup battery, wall vapor barrier. All in writing, flat-rate, no verbal estimates that drift. Most quotes land in your inbox or on paper before we pull out of the driveway.
4. Install and Water-Test
Saw-cut the perimeter, trench 8 to 10 inches, bed 3 inch perforated pipe in washed stone, patch concrete. Set the sump pit, plumb the discharge, install the backup battery. Water-test with a garden hose against the footings before cleanup. Full 1,200 square foot basement finishes in 2 to 3 working days.
5. Cleanup and Warranty Paperwork
Shop vac over every surface, dust-mopped twice, waste concrete and old drain tile hauled off. Written transferable workmanship warranty and a photo set of what is behind the wall in your hand or your inbox before we leave.
What's included
- Free on-site inspection and chalk-marked seepage map
- Written flat-rate quote before any work starts
- 3 inch perforated SDR drain pipe in washed stone, not undersized flex tubing
- Proper sump pit excavation with sealed airtight lid
- Water-test with a garden hose against the footings before cleanup
- Transferable workmanship warranty in writing
- Haul-away of waste concrete, old drain tile and old sump
- Photo documentation of every linear foot of installed drain
What it costs
Most Dunmore basement waterproofing jobs run 5,000 to 15,000 dollars for a full interior perimeter drain system. Exterior excavation jobs are a separate conversation at 15,000 to 30,000 dollars. Free inspection and written quote every time.
| Job | Typical price | Notes |
|---|---|---|
| Interior Perimeter Drain System | $5,000 to $15,000 | Flat rate by linear foot of basement perimeter. Partial-perimeter jobs land at the low end, full 150-foot perimeters with a backup battery sump at the high end. |
| Exterior Excavation Waterproofing | $15,000 to $30,000 | The right call when a wall is cracked on the outside or the yard grade cannot be fixed another way. Access and dig depth around NEPA foundations drive the spread. |
| Sump Pump with Battery Backup Install | $1,400 to $2,500 | AC primary plus DC backup battery combo. Covers PPL power cuts, which hit every big NEPA storm and are exactly when the pump is needed. |
| Cove Joint Water Control System | $3,500 to $7,000 | Captures water at the floor-wall joint and routes it to the sump. Shorter install than a full perimeter drain, usually a 1 day job. |
| Wall Vapor Barrier and Dimple Board | $1,200 to $4,000 | Hung on the interior wall from the top of the foundation down to the drain system. Priced by linear foot. |
| Free On-Site Inspection and Written Quote | Free | Full perimeter walk-through, chalk-marked seepage map, and a flat-rate quote in your hand before we leave. No service call fee and no deposit to lock in the price. |
Ranges are typical for Basement Waterproofing jobs in Dunmore and confirmed with an exact written quote before any work starts.