Water Leak Under a Pier and Beam House? Signs and Fixes in Arlington

In a pier and beam home, the water and drain pipes run through a crawl space under the floor. A leak there can drip for weeks without showing inside. Common signs are a musty smell, soft or sagging floors, a high water bill, and a running water meter with everything off. Because the pipes are reachable, the fix is often simpler than a slab leak. Call (817) 285-5426 for help.

For hidden leaks in any older home, our leak detection Arlington TX team checks crawl spaces, walls and yard lines.

Which Arlington homes are on pier and beam?

Many homes built before the 1960s in Arlington sit on pier and beam foundations, especially near Downtown, the UTA area and parts of East Arlington. Some later homes and additions use it too. If you have a crawl space access door on the outside wall or in a closet floor, your home is likely pier and beam.

Most homes built since the 1970s in North, Southwest and South Arlington sit on concrete slabs instead. For those, see our slab leak detection Arlington service.

What are the signs of a leak under the house?

1. A musty, damp smell in rooms or closets.
2. Floors that feel soft, bouncy or cupped near a bathroom or kitchen.
3. A water bill that keeps climbing.
4. The water meter moving with all fixtures off.
5. Standing water or wet soil seen through the crawl space door.
6. More bugs, such as termites or roaches, drawn to the moisture.

A musty smell is often the first clue. Our guide to musty smells and hidden leaks explains why.

Why are crawl space leaks a problem?

Water in a crawl space raises humidity under the home. Wood joists, beams and subfloor soak it up, which leads to rot, mold and sagging floors. In Arlington's clay soil, a constant leak can also soften the ground around the piers and make them settle. That shows up as sloped floors and cracks in walls, much like foundation trouble.

How is a leak under a pier and beam house found?

The tech starts with a meter test to confirm a leak, then isolates the hot and cold lines with pressure tests. In the crawl space, they look for wet soil and drips, use a moisture meter on wood, and use acoustic tools to follow the sound along the pipe. Thermal cameras help find hot water leaks. The goal is to mark the exact spot so the repair is quick.

Basic leak detection in Arlington runs about $150 to $400. A buried line from the meter to the house runs about $200 to $500.

How are crawl space leaks fixed?

Most crawl space leaks are fixed by cutting out the bad section of pipe and adding a new piece with proper fittings. Older homes often have galvanized steel, cast iron drains or polybutylene supply lines that fail in many places. In those cases, replacing a full run of pipe, or repiping the house, can be cheaper over time than fixing leak after leak.

• Dry out the crawl space after the repair, with fans or a dehumidifier.
• Check joists and subfloor for rot near the leak.
• Insulate pipes before winter to prevent freezes.
• Keep the crawl space vents and access door in good shape.

Gray plastic pipe is a warning sign. Read about polybutylene pipes before you decide on a spot repair.

Can I check the crawl space myself?

You can look through the access door with a flashlight for standing water, wet soil and drips. Going all the way in is safer for a pro, since crawl spaces can have wiring, sharp debris, pests and very tight spaces. If you see water, shut off the main valve and call. Our main water shut-off valve guide shows where to find it.