Exterior waterproofing is the right call on a Girard home when the interior drain fix will not solve the real problem. That usually means a bowing block wall pushing in more than 2 inches, an active hydrostatic push on a poured wall, or a finished exterior where the landscaping is already due for a full redo. On the inspection we scope what is driving the water in. If the water is pushing through mortar joints on the north side of a 1950s block ranch off Churchill Road, interior French drain is the cheaper, honest fix. If the wall is actively failing, exterior is the one that fixes it.
The dig itself is where most exterior failures happen on cheap jobs in the Mahoning Valley. We excavate to the full footer depth, usually 7 to 9 feet on a Girard basement. Wall surface gets cleaned with a wire wheel back to sound concrete or block, old parging chipped off, every mortar joint repointed where it has popped. Hot-applied rubberized asphalt membrane or a 60-mil peel-and-stick sheet goes on the wall full-height, overlapped at seams. Then dimpled HDPE drainage board gets fastened over it so hydrostatic pressure routes down to the drain tile instead of pushing on the membrane.
The new exterior drain tile is 4-inch rigid perforated pipe on washed stone wrapped in filter fabric, set below the footer top and tied into either daylight or a dedicated catch basin. Clean stone backfill the first 2 feet above the drain, then native soil above that compacted in lifts. The mistake we see most from other outfits is skipping the drainage board, dumping the dirt back in loose, and calling it done. Two freeze-thaw winters later the membrane is scraped off by shifting clay and you are back where you started.
Snow-belt winters in Girard are hard on exterior work. We schedule excavation jobs between April and mid-November because frozen clay cannot be dug properly and membrane will not stick to a cold wall. Late February snowmelt is when most calls come in for exterior quotes because water is actively running down the inside of the wall. We walk you honest on whether to wait for April or run an interior drain now and plan the exterior next year.
What we handle
Full Perimeter Exterior Excavation
Dig to the footer around the full foundation perimeter. Wall exposed, cleaned, parged, and prepped. The full-commitment exterior fix for actively failing walls.
Single-Wall Exterior Dig
Excavation of just the affected wall when the inspection shows only one side pushing. Cuts cost by 50 to 70 percent versus full perimeter. Common on Girard corner lots.
Hot-Applied Rubberized Asphalt Membrane
Industrial-grade hot-applied membrane sprayed full-height on the exterior wall. Self-sealing at seams. The spec most general contractors run on new construction.
60-Mil Peel-and-Stick Sheet Membrane
Cold-applied sheet membrane on cleaner retrofit jobs. Overlapped at seams, mechanically fastened at the top terminator strip.
Dimpled Drainage Board
HDPE board fastened over the membrane. Routes hydrostatic water down to the new drain tile and protects the membrane during backfill. Non-negotiable on every exterior job we do.
Exterior Drain Tile Replacement
New 4-inch rigid perforated pipe on washed stone, wrapped in filter fabric, tied to daylight or a catch basin. Standalone service if the membrane is still sound but the drain tile has collapsed.
How the job goes
1. Phone Intake and Scope
You call. We ask about wall type, visible bowing, where you see water inside, and what the exterior landscape looks like now. You get a price band and an inspection window within 48 hours.
2. On-Site Inspection
Interior walk with wall deflection measurement. Exterior walk tracing grade slope, downspout outlets, driveway relationship to the foundation. We honest-check whether exterior is the right call or whether interior saves you $8,000. Inspection runs 60 to 90 minutes.
3. Written Quote and Schedule
Full written scope with excavation footage, membrane spec, drainage board, and new drain tile line-itemed. Schedule set for a weather-stable stretch between April and mid-November.
4. Excavation and Wall Prep
Excavator opens the trench to the footer. Spoil piled on tarp. Wall cleaned, parged, every popped joint repointed. Day 1 and 2 of a standard job.
5. Membrane, Board, Drain Tile, Backfill
Membrane applied full-height. Drainage board fastened over it. New drain tile laid on washed stone, tied to daylight or catch basin. Clean stone backfill the first 2 feet, native soil compacted in lifts above that. Standard job runs 4 to 8 days. Photos of every stage before dirt goes back.
What's included
- On-site inspection with wall deflection measurement
- Written flat-rate quote with excavation footage and membrane spec
- Excavation to full footer depth with spoil on tarp
- Wall cleaning, parging, and mortar joint repointing
- Hot-applied or 60-mil peel-and-stick membrane full-height
- Dimpled HDPE drainage board over membrane
- New 4-inch rigid drain tile on washed stone with filter fabric
- Clean stone backfill above drain, native soil compacted in lifts
- Rough grading restoration
- Photos of every stage before backfill
- Transferable written workmanship warranty
What it costs
Full exterior perimeter excavation and waterproofing in Girard runs $10,000 to $25,000 all-in. Single-wall digs run $4,500 to $11,000. Exterior drain tile replacement alone is $6,000 to $14,000.
| Job | Typical price | Notes |
|---|---|---|
| Full Perimeter Exterior Waterproofing | $10,000 to $25,000 | Based on linear feet of foundation and dig depth. 7 to 9 feet typical in Girard. Deck or porch removal adds cost. Finished landscape restoration priced separately. |
| Single-Wall Exterior Dig | $4,500 to $11,000 | One wall only. Most common on corner lots where only the north or east wall shows water pressure. |
| Exterior Drain Tile Replacement | $6,000 to $14,000 | New 4-inch rigid drain tile on washed stone, filter fabric, daylight or catch basin tie-in. Standalone when the membrane is still sound. |
| Mortar Joint Repointing on Exposed Wall | $800 to $2,500 | Added to exterior dig cost. Prices by linear feet of joint needing repointing. Required prep before membrane goes on. |
| Free On-Site Inspection and Written Quote | Free | Full interior and exterior walk, wall deflection measurement, honest interior-versus-exterior recommendation. No obligation. |
Ranges are typical for Exterior Foundation Waterproofing jobs in Girard and confirmed with an exact written quote before any work starts.