What Does Plumbing Leak Repair Cost?
Professional plumbing leak repair typically costs $100 to $250 for a faucet or fixture and $150 to $500 for an accessible pipe, averaging around $350 for an accessible repair. Slab leaks requiring concrete access run $500 to $4,000 or more depending on the leak location and repair method.
Faucet or Fixture Leak: $100 to $250
A dripping faucet, leaking toilet supply line, or leaking fixture connection is the simplest and least expensive plumbing leak repair. Most involve replacing a worn washer, cartridge, or supply line connection parts that cost $5 to $50 and take a plumber 30 to 60 minutes to replace. The labor rate for a licensed plumber ($75 to $150 per hour) plus the trip charge produces the typical $100 to $250 cost range for simple fixture leaks. (For more on this, see What Affects Plumbing Leak Repair Cost?.) EPA WaterSense estimates the average household wastes about 9,300 gallons a year to leaks, and a single dripping faucet more than 3,000 gallons.
Accessible Pipe Leak: $150 to $500
A leak in an exposed pipe in the basement, crawlspace, under a sink, or in an accessible utility room requires cutting out the damaged pipe section and replacing it. Cost depends on the pipe material (copper costs more than PEX for the repair segment), the pipe diameter, and the length of the repair. A 6-inch copper pipe repair in a basement costs less than a 2-foot repair requiring multiple fittings. Most accessible pipe repairs complete in 1 to 2 hours, putting the total cost in the $150 to $500 range for most residential situations. (For more on this, see Hidden Costs of Plumbing Leak Repair.)
Slab Leak: $500 to $4,000
A slab leak a leak in supply or drain lines beneath the concrete foundation requires leak detection to pinpoint the location before any repair can begin. Once located, repair options include: spot repair (cutting through the slab at the leak point, $500 to $1,500), rerouting the line through the walls above the slab ($800 to $2,000), or pipe lining/epoxy lining as a non-invasive alternative ($2,000 to $4,000). The right method depends on the leak severity, pipe material, and the plumber’s assessment of the line’s overall condition.
Plumbing Leak Repair Cost at a Glance
Professional leak repair ranges from simple fixture fixes to complex slab access. The cost depends primarily on where the leak is and how accessible it is. (For more on this, see How to Find the Best Plumber for Leak Repair.)
| Cost Factor | Typical Range | Notes |
|---|---|---|
| Faucet or fixture leak | $100 to $250 | — the simplest and cheapest repair type |
| Pipe leak (accessible) | $150 to $500 | — depends on pipe material and exact location |
| Slab leak | $500 to $4,000 | — requires professional detection and concrete access |
| Overall range | $100 to $4,000 | , averaging $350 for an accessible repair, not a slab leak |
Cost figures on this page were checked against published pricing on August 23, 2026. How we source cost data.
Planning Your Project Budget
The cost ranges in this article are based on industry data and are intended as planning benchmarks, not fixed prices. The actual cost for your project depends on your specific home, your local labor market, the current price of materials, and the scope the contractor confirms after a site inspection.
Always get at least two written quotes on equivalent defined scope before committing to any home services project. Wide price variation between quotes usually reflects differences in material quality, scope completeness (what is included and what is not), or contractor overhead and experience level rather than simple price competition.
Use the cost data in this article to ask better questions during the quoting process: What material is included? What does that per-square-foot or per-linear-foot rate include and exclude? Are permits, cleanup, and disposal included? What is the warranty on labor? These questions turn a quote into a comparable basis for decision-making.
Working With a Contractor on This Project
Getting the right outcome on any home services project starts before the work begins. A few consistent practices make the difference between a smooth project and a frustrating one.
Get at least two or three quotes. A single quote gives you no basis for comparison. Two or three quotes reveal the market rate for the work, expose scope differences between bidders, and let you assess contractor communication quality before any commitment is made. The lowest bid is not automatically the best value if the scope is thin or the materials are underspecified.
Ask for licenses and insurance before work starts. Verify current general liability insurance and, for any work involving workers on your property, workers compensation coverage. Licensing requirements vary by state and trade; confirm the specific requirements in your jurisdiction. A licensed contractor who carries appropriate insurance protects both parties if something goes wrong during the project.
Get the scope in writing. A written proposal that specifies materials, labor scope, timeline, what is included (permits, cleanup, disposal), and warranty terms is the foundation of a professional engagement. Verbal agreements on any of these points invite misunderstanding. For any project over $500, written scope is non-negotiable.
Clarify the payment schedule upfront. A reasonable payment schedule ties major payments to project milestones: a deposit at signing, a payment at material delivery or project start, and a final payment at completion after a walkthrough confirms satisfaction. A contractor who requires full payment upfront before work begins is a red flag in any trade.