Pipe leaks range from obvious gushers to hidden seepers behind walls and under slabs. STL Plumbing Pros locates and repairs pipe leaks throughout St. Louis homes — pinhole leaks in copper, corroded galvanized sections, joint failures, and slab leaks. We make minimal access cuts and repair with lasting solutions, not temporary patches.
Signs of a Pipe Leak
Higher-than-normal water bill with no change in usage.
Water meter continues to move when all fixtures are off.
Damp spots, stains, or bubbling paint on walls or ceilings.
Mold or musty smell in enclosed spaces — under cabinets, in crawl spaces.
Sound of running water when nothing is on.
Our Process
Locate the Leak
Using electronic leak detection, visual inspection, and pressure testing to pinpoint the exact location — minimizing exploratory demolition.
Repair Permanently
We repair with proper materials and techniques — soldered copper, PEX transitions, or pipe replacement. No temporary clamps or epoxy patches.
Verify and Prevent
Pressure test to confirm the repair holds, check for additional weak points, and recommend preventive measures.
Pricing
| Service | Price | Details |
|---|---|---|
| Pinhole leak repair (accessible copper) | $150–$350 | Cut and solder or compression fitting repair. |
| Pipe section replacement | $250–$600 | Replace corroded or damaged pipe section. |
| Behind-wall pipe repair | $400–$900 | Includes drywall access and pipe repair. |
| Slab leak repair (reroute) | $1,500–$3,500 | Reroute pipe above slab to bypass the leak. |
What Our Customers Say
"Found a damp spot on the ceiling. They located the leak above without tearing up the whole ceiling — small access hole, quick repair."
"Pinhole leak in a copper pipe behind the shower wall. Professional repair with minimal wall damage."
"Water bill was $200 more than normal. They found a slab leak and rerouted the pipe. Problem solved permanently."