Estimated Read Time: 9 minutes
Slab leak detection should not mean tearing up floors. With modern slab leak detection, our plumbers pinpoint water line or drain leaks under concrete with precision, then make a small, targeted repair. In this guide, we explain how slab leak detection works, what tools we use, and how we keep damage to a minimum for homes in Provo, Orem, and across Utah County.
What Is a Slab Leak and Why Speed Matters
A slab leak is a pressurized water or drain line leak beneath your concrete foundation. Symptoms include warm spots on floors, the sound of running water when fixtures are off, sudden water bills, or damp baseboards. Left unchecked, a slab leak can undermine concrete, warp flooring, and feed mold growth.
Speed matters because water follows the path of least resistance. It can travel along rebar or expansion joints and appear far from the actual break. Guesswork leads to big holes, long downtime, and missed leaks. Professional slab leak detection uses layered diagnostics so we isolate the exact point before any opening is made.
The “Least‑Damage” Philosophy
Our process follows a simple rule: locate first, open last. We stack noninvasive tests in a logical order, escalate only as evidence demands, and document findings with video when appropriate. Most homes need a single, well‑placed opening or a short reroute, not a full demo.
Here is the playbook we use in Utah County homes:
- Confirm there is a leak.
- Map the plumbing paths.
- Pinpoint the source with multiple tools.
- Choose the lowest‑impact repair.
- Verify the fix and restore finishes.
Step 1: Prove the Leak With Meter and Pressure Tests
We start with simple confirmations:
- Water meter test: With all fixtures off, we watch the meter for movement. Any flow suggests a pressurized line leak.
- Static pressure test: We isolate zones and apply a gauge. A drop confirms a hidden breach. On drain systems, we perform static head tests or introduce a test ball to hold water and observe loss.
These fast checks prevent unnecessary openings by ensuring there is a real, active leak.
Step 2: Map Your Lines With Electronic Locating
We use electronic line locating to understand where pipes actually run under the slab. A transmitter is attached to a line or to a sewer camera head. A receiver traces the signal at the surface, letting us mark accurate pathways and depth. Knowing the route shrinks the search area and reduces chances of opening the wrong spot.
Local tip: Older homes in Provo and Springville often have remodels that rerouted lines without final as‑builts. Electronic locating resolves these surprises before we open a single tile.
Step 3: Acoustic Listening and Correlation
Pressurized leaks create sound signatures. Using professional acoustic microphones and ground sensors, we listen through the slab to detect the highest decibel point where water escapes. Correlating signals between two points removes echo and background noise. This method is highly effective on copper and PEX lines and often pinpoints within inches, which can mean a small 6 to 12 inch opening instead of a large trench.
Pro tip: Nighttime quieting in occupied homes can help isolate the signal further, but our gear is designed to filter common household noise.
Step 4: Thermal Imaging to Track Temperature Anomalies
Infrared cameras highlight temperature differences at the surface. A hot water slab leak often shows a warm plume as heat conducts through concrete. For cold lines, we can induce a temperature change by briefly running cold water, then look for a cool signature. Thermal imaging cross‑checks acoustic findings and helps confirm the smallest opening size that will work.
Note: Thermal imaging is a locator, not proof of pipe failure. We validate with other tests before opening.
Step 5: Tracer Gas for Hard‑to‑Find Leaks
When acoustic and thermal methods are inconclusive, we use a safe, noncorrosive tracer gas blend. The gas is introduced under low pressure into the isolated line. Sensitive sniffers detect the gas where it escapes, even through hairline cracks in concrete. This technique is valuable in noisy mechanical rooms or near appliances where acoustic signals overlap.
Step 6: Camera Inspections for Drain and Sewer Leaks
If symptoms point to drain or sewer issues, we run a high‑definition camera through cleanouts to identify fractures, root intrusion, or separated joints under the slab. Video inspections document the problem and guide a no‑dig plan when possible.
Two advantages for homeowners:
- You see exactly what we see with recorded video.
- We can compare before and after footage to verify success.
Choosing the Repair With the Smallest Footprint
Once we pinpoint the source, we select the least invasive fix that meets code and long‑term reliability standards. Common options include:
- Direct access and spot repair
- Core drill a small opening at the leak, repair or replace a short run, then patch concrete and flooring.
- Ideal for newer piping with an isolated failure.
- Overhead or wall reroute
- Bypass a compromised slab section by running new pipe through walls or attic, then drop to fixtures.
- Great for homes with multiple slab patches or corrosive soil conditions.
- Trenchless drain solutions
- For damaged sewer or drain lines, we use cured‑in‑place pipe (CIPP) lining or pipe bursting to repair or replace lines with minimal excavation.
- UV Bluelight CIPP lets us inspect the liner internally before curing, then cure rapidly for faster return to service.
Each method is designed to protect finishes and minimize time without water. We review cost, lifespan, and warranty with you before work begins.
When Trenchless Makes Sense Under a Slab
Not every slab problem involves pressurized water. If your issue is with a sewer or drain under the slab, trenchless shines:
- CIPP lining rebuilds the inside of the pipe, sealing cracks and offset joints without trenching across rooms.
- Pipe bursting replaces severely damaged or collapsed lines by pulling a new, high‑density pipe through the path of the old one.
Both options reduce mess, protect tile and concrete, and often finish in a day. Our UV Bluelight system allows a pre‑cure video check, then a controlled light cure, reducing the risk of defects that are common with traditional two‑part epoxies.
How We Keep Openings Small and Tidy
Precision is only half the job. Clean access and restoration matter too. Our practices include:
- Dust control and floor protection from the door to the work area.
- Compact core drilling to create the smallest access needed.
- Targeted wall cuts aligned to stud bays when rerouting.
- Moisture checks around the repair site before closing.
- Concrete patching and subfloor prep ready for finish materials.
Many Utah County homes have hard water that accelerates pinhole leaks. If we find systemic corrosion, we will suggest a proactive reroute or repipe to prevent repeat openings.
Documentation, Pricing, and Guarantees You Can Trust
We believe in clarity before the first cut:
- Set pricing, not open‑ended hourly charges, so you know the cost of detection and repair.
- Video documentation for drain work, with before and after proof.
- A 100% satisfaction guarantee and a one‑year warranty on repairs. If a repair fails in the first year, we fix it at no charge.
- 30‑day guarantees for Hydro‑Jet, Mainline, and standard drain cleaning services that support leak cleanup and maintenance.
We also offer financing for larger repairs so you can move forward without delaying critical fixes.
Safety and Compliance Matter
You should never accept guess‑and‑check demolition. Our work is performed by Utah‑licensed Journeyman Plumbers who follow local codes and manufacturer specs. Pressure testing, gas handling, and concrete access each have safety steps that protect your family and property.
What to Do If You Suspect a Slab Leak
Act quickly to limit damage:
- Turn off fixtures and listen for running water.
- Check your water meter for movement.
- Feel for unexplained warm spots on floors.
- Look for damp grout lines or baseboards.
- Call a licensed plumber for professional slab leak detection.
If water is actively surfacing indoors, consider shutting off the main at the meter or curb box until we arrive.
Real‑World Results in Utah County
Homeowners from Provo to Spanish Fork choose precision detection to avoid ripping up floors. We have located leaks in single visit appointments and restored water service the same day. In many cases, a tight reroute through a cabinet or wall solved the problem with almost no visible changes.
Our team is known for clear options and prices before work begins, rapid response, and careful cuts that are easy to patch. For drain issues, we bring trenchless tools that save driveways, patios, and landscaping.
Preventing the Next Leak
Prevention saves money and stress. Consider these upgrades:
- Pressure regulating valve set to 60–70 psi to reduce line stress.
- Softening or conditioning to reduce hard water scale that can pit copper.
- Annual wellness checks to spot early warning signs, like meter creep or valve corrosion.
- Camera inspections on older drains to catch root growth or shifts before they leak.
Members of our Plumbing Wellness Program receive routine maintenance checks, including water heater inspections and priority scheduling, which helps us catch issues sooner and keep systems healthy.
Service Area and Local Insight
We proudly serve Provo, Orem, Saratoga Springs, Spanish Fork, Pleasant Grove, Springville, Payson, Santaquin, Vineyard, and Mapleton. Utah County’s mix of older copper systems and newer PEX installations means no one‑size‑fits‑all solution. We tailor detection and repair to your home’s age, materials, and layout for the smallest footprint and the best long‑term result.
What Homeowners Are Saying
"After doing a yearly check, a large leak was found under my sink, going into the foundation... Chris quickly identified the leak and took care of all the details. I got a great price quote... and stopped all future damage."
–Rebekah L., Leak Repair
"He was also very through in diagnosis the source of the leak before he cut into the wall so as to minimize the wall hole. Thank you for fixing our leak."
–SA L., Leak Repair
"We discovered a leak in our main water line early Friday... They sent a team out by 10:30am, evaluated the problem, gave me a quote, and had it fixed that day!"
–David M., Main Water Line Repair
"We had a recurring water leak, after several failed attempts by other plumbers, Eric's team was able to correctly diagnose the problem and fix it."
–Wendy O., Leak Detection
Frequently Asked Questions
How do plumbers find a slab leak without tearing up floors?
We stack tests: meter and pressure checks, electronic line locating, acoustic listening, thermal imaging, and sometimes tracer gas. These methods pinpoint the leak so we can open a small, precise access point instead of large demolition.
Can you repair a slab leak without breaking concrete?
Yes, often. We can reroute lines through walls or attic to bypass the slab. For drains, trenchless lining or pipe bursting can fix or replace pipes with minimal or no interior demolition.
How long does slab leak detection take?
Most homes take 1 to 3 hours to diagnose, depending on complexity and noise levels. Same‑day repairs are common for isolated leaks. Larger reroutes or trenchless drain projects may take one to two days.
Will my flooring be saved?
In many cases, yes. Pinpoint locating allows a small core hole or a discreet wall opening. We protect surfaces, control dust, and plan restoration so finishes return to normal quickly.
What warranties do you provide on slab leak repairs?
We provide a one‑year warranty on repairs and a 100% satisfaction guarantee. Hydro‑Jet, Mainline, and standard drain cleanings carry 30‑day guarantees. We review warranty details before work begins.
Slab leaks do not require messy demolition. With precise slab leak detection and minimally invasive repairs, we protect your floors and fix the source fast. If you need slab leak detection in Provo or anywhere in Utah County, we are ready to help today.
Call Eric's Plumbing & Drain Cleaning at (801) 852-5651 or schedule at https://ericsplumbinganddrain.com/ for precise slab leak detection and repair. Ask about financing and our Plumbing Wellness Program for ongoing protection.
Eric's Plumbing & Drain Cleaning is a local, family‑owned team serving Utah County for 25+ years. We pair advanced diagnostics with honest, upfront pricing and set rates. Our licensed Utah Journeyman Plumbers use video inspections, UV Bluelight CIPP for trenchless lining, and proven repair methods. We back repairs with a one‑year warranty and a 100% satisfaction guarantee. Expect fast response, clean workmanship, and solutions that protect your home and yard.