Plumbing leak or groundwater?
| Clue | Points to plumbing | Points to groundwater or runoff |
|---|---|---|
| Timing | Wet in dry weather too | Wet after rain or snowmelt |
| Water meter | Moves with everything off | Doesn’t move |
| Where it appears | Near pipes, fixtures or where the water line enters | Along the base of walls, cove joint or floor cracks |
| Sump pump | Runs even in dry spells | Runs after storms |
Clay soil around Franklin holds water against foundations after heavy rain, and homes near Youngs Creek and Hurricane Creek know what high water can do. Groundwater is a waterproofing or drainage job, not a plumbing one, and it’s worth knowing which you have before paying for either. See water in the basement or crawl space.
Check before you call
- Meter testTurn off all water and watch the leak indicator for 15–30 minutes. Movement means a plumbing leak somewhere.
- Dry the spot and watchMop or towel the wet area, then check it after a dry day. Water returning in dry weather points to plumbing.
- Look where the line entersDamp or wet concrete where the water service comes through the wall points to the buried line or its entry seal.
- Listen to the sump pumpA pump that runs constantly in dry weather can be pumping leak water. See sump pump running constantly.
Think you have a leak? Call and tell us what you’re noticing in your Franklin home.
(877) 729-0265What we find in Franklin crawl spaces
Split supply lines
Lines that froze near vents or the rim joist, especially on the north and west sides of the house.
Drain leaks
Cracked cast iron or loose joints on drain lines from bathrooms and the kitchen, which only leak when fixtures are used.
Water heater and softener
Leaks from a water heater’s relief line, a softener’s brine line or their connections, often in a basement corner.
The service line entry
Water from a leak in the buried line running along the pipe and through the foundation wall.
How we pinpoint it
- Meter and valve tests to separate supply, drain and the buried service line.
- Moisture readings on joists, subfloor, walls and soil to find where water is concentrated.
- Thermal imaging to trace hot-water lines and wet areas across the crawl space ceiling.
- Fixture tests for drain leaks: running water through each fixture while watching the lines below.
- Acoustic listening on pressurized lines that can’t be seen.
You get a report that says whether the water is from plumbing and, if so, where it’s coming from, with photos.
Don’t let it sit
Standing water in a crawl space raises humidity under the whole house, softens subfloors and feeds mold. Wood floors above can cup, and insulation gets heavy and falls. A slow plumbing leak can do all of that without ever showing upstairs.
Once the source is found, our plumbing partner can repair it, often without opening anything in the living space. See leaking pipe repair in Franklin.
Basement & Crawl Space Leak Detection: questions from Franklin homeowners
How do I know if water in my basement is from plumbing?
Watch the meter with all water off, and see whether the water comes back in dry weather. A moving meter, or water that returns without rain, points to plumbing. Water only after storms points to groundwater or runoff.
Do you fix groundwater problems?
No. Groundwater and runoff are drainage or waterproofing jobs. We tell you whether the water is from plumbing, and if it isn’t, you know to call a waterproofing contractor instead.
Why is my crawl space wet near the front of the house?
The water service line often enters on the street side. A leak in the buried line can follow the pipe to the foundation and seep in there.
Can a drain leak cause a wet crawl space?
Yes. Drain leaks only happen when water is used, so the meter won’t show them. We test fixtures one at a time and watch the drain lines below.
Guides that go deeper
Sources: Indiana American Water; Town of Bargersville Water Utility; Indiana 811; Indiana Administrative Code, Title 327. Updated October 1, 2026.