Basement waterproofing
Interior drainage systems
An interior drainage system (interior drain tile or French drain) is a perforated pipe installed in a trench along the inside perimeter of the basement floor. It collects water that seeps through the walls and floor-wall joint and carries it to a sump pump, relieving hydrostatic pressure without digging outside.
- Typical time
- One to three days.
- Repair or replace
- Install when water enters at the floor-wall joint.
The concrete floor along the walls is cut out, a trench is dug down to the footing, pipe and stone are laid, and a dimple membrane directs wall seepage into the drain before the floor is patched.
It's the most common fix for older Mahoning Valley basements because it avoids excavating around porches, driveways and neighbors' lots.
Interior Drainage Systems at a glance
- What it is
- An interior drainage system (interior drain tile or French drain) is a perforated pipe installed in a trench along the inside perimeter of the basement floor.
- Service category
- Basement Waterproofing
Signs you need water at the floor-wall seam help
- Water at the floor-wall seam
- Water rising through floor cracks
- Seepage along several walls
- Old clay drain tile that has failed
Quick answers
Interior Drainage Systems: the short version
How long interior drainage systems takes
One to three days.
When water at the floor-wall seam can wait, and when it can't
Planned; before wet season.
Fix or replace water at the floor-wall seam?
Install when water enters at the floor-wall joint.
Why water at the floor-wall seam happens
Hydrostatic pressure, failed clay tile.
The work
How interior drainage systems is done
- 1
Plan
Map where water enters and where the sump goes.
- 2
Trench and install
Pipe, washed stone and wall membrane along the perimeter.
- 3
Sump
Sealed sump basin and pump, often with battery backup.
- 4
Restore floor
Concrete patched and cleaned up.
What moves the price of interior drainage systems
Driven by linear feet and sump.
- Linear feet
- Obstacles (stairs, furnaces, finished walls)
- Sump and backup
- Floor thickness
Interior Drainage Systems: common questions
Does interior drain tile stop water from coming in?
It manages water that reaches the wall and floor rather than keeping it out entirely, directing it to the sump before it spreads across the floor.
How long does installation take?
Many homes take one to three days depending on size and obstacles.
Service area
Interior Drainage Systems across the Mahoning Valley
Related
Services often paired with interior drainage systems
Sump Pump Installation & Repair
Sump pump service installs a sealed pit and pump where groundwater collects, replaces failed pumps and switches, adds battery or water-powered backups, and routes the discharge line well away from the house so it doesn't freeze or recirculate..
Learn more
Exterior Foundation Waterproofing
Exterior waterproofing excavates soil down to the footing, cleans and repairs the wall, applies a waterproof membrane and drainage board, and installs new footer drains before backfilling.
Learn more
Leaking Wall Crack Repair
Leaking crack repair seals non-structural cracks in poured concrete walls, usually by injecting flexible polyurethane that expands to fill the crack through the wall's full thickness.
Learn more
Call about water at the floor-wall seam
Hydrostatic pressure, failed clay tile.