How Much Does Leak Detection Cost?

This guide covers typical leak detection rates, the factors that affect them, and how to compare quotes for your home.

$150 - $600 per visittypical range
Most homeowners pay about $150 - $600 per visit for leak detection. A straightforward visible plumbing leak may cost $75 - $200 to locate, while a hidden slab or underground leak can run $500 - $1,500 or more.
Updated Oct 2026

Typical prices by job

JobWhat it involvesTypical range
Visible fixture leakBasic inspection and tracing$75 - $200
Hidden wall or ceiling leakMoisture checks and tracing$150 - $500
Slab leak detectionAcoustic or thermal equipment$300 - $1,000
Underground water line leakLine tracing and pinpointing$400 - $1,500

Ranges are typical, not quotes - the price for your job depends on scope and location, so always confirm with the provider.

What affects the price

The location and accessibility of the leak matter most. A suspected drip near a fixture is usually simpler to trace than a leak beneath concrete, behind finished walls, or in a buried line. Specialized acoustic, infrared, or pressure-testing equipment can add to the charge.

Rates also depend on local labor costs, travel, urgency, and whether the provider is a plumber or a dedicated leak detection specialist. Detection usually does not include opening walls, repairing the pipe, or restoring finishes, so confirm what the visit covers.

How to pay less

Ask whether the diagnostic fee is credited toward repairs, and get the scope, equipment charges, and any after-hours fees in writing. Share when the problem began and where you have noticed moisture so the technician can prepare.

Compare a few itemized quotes and avoid authorizing repairs until you understand the findings. Collecting quotes through Reedleys means every number comes from a real, checked listing.

Cost questions

Do leak detection companies charge for an estimate?

Some offer a no-cost phone estimate, but locating a hidden leak usually requires a paid diagnostic visit. Ask whether the fee covers testing and a written report.

Does leak detection include the repair?

Usually not; detection identifies or narrows down the source, while repair and finish work are billed separately. Confirm whether the provider can quote both services.

Why do leak detection quotes differ so much?

Quotes can cover different testing methods, visit lengths, equipment, and reporting. Check whether travel, access work, and follow-up testing are included before comparing totals.

Recognized Leak Detection businesses

Zuniga's Plumbing

Chicago plumbing company offering gas leak, water heater, and plumbing repair services.

Home Services Chicago, United States
Miracle Rooter

Los Angeles plumbing contractor offering residential plumbing, drain cleaning, sewer work, leak detection, and emergency repairs.

Home Services Los Angeles, United States
Repipe & Replumb

Houston plumbing company specializing in whole-home PEX-A repiping and residential plumbing services.

Home Services Houston, United States
Emory Plumbing

Plumbing, HVAC, and damage restoration services in San Diego, including drain work, leak detection, and water damage remediation.

Home Services San Diego, United States
Z Plumberz of North Dallas

Residential and commercial plumbing, sewer, and drain services in North Dallas, including emergency repairs and installations.

Home Services Dallas, United States
Phantom Plumbing

Dallas plumbing business offering residential and commercial repairs, installations, and 24-hour emergency service.

Home Services Dallas, United States
Service Company Plumbing

A Fort Worth plumbing company offering residential and commercial repairs, installations, maintenance, and new construction plumbing.

Home Services Fort Worth, United States
Larry Stinson Plumbing

Fort Worth plumbing company serving Tarrant County and nearby areas since 2008.

Home Services Fort Worth, United States
Water Quality Plumbing

Full-service plumbing firm serving San Jose and the Santa Clara Valley since 1970.

Home Services San Jose, United States
Scaran Oil Service Co Inc.

Staten Island HVAC, plumbing, heating, water heater, and oil delivery contractor serving homes and businesses since 1930.

Home Services Staten Island, United States
See all Leak Detection businesses →