A LITTLE WATER. A LOT OF QUESTIONS.
LEAKS
LEAVE CLUES.
WE FOLLOW THEM.
The puddle is the beginning of the story. We find where the water starts, explain the repair, and help you get your home back.
Visible pipes. Hidden leaks. Fixture connections.
Clear answers before the repair.
Where is it wet?
When does it happen?
The timing helps us follow the water. A supply leak may continue between uses, while a drain or enclosure leak usually appears when that fixture runs.
Answer from what you have already noticed. Leave a leaking fixture off while waiting for repair.
YOUR NEXT USEFUL STEP
Start with the wet spot.
Choose the area and timing. We’ll explain the possibilities, what to avoid and where to look in the model.
Water actively spreading? Use the call option above.
Explore this part of the house ↗Book help with this leakOne house.
A lot of places to leak.
Pick an area and inspect its plumbing. See what can leak, when you might notice it, and how we distinguish the possible causes.
IN THIS EXAMPLEShower supply connection
Opening the house cutaway…
Choose a source in the list.
CHOOSE AN AREA
The small orange dot marks the connection described above. Copper-colored supply lines are hot; blue supply lines are cold. The toilet connects only to cold water; drain pipes are pale and dry vents are sage green.
UPSTAIRS / PRESSURIZED SUPPLY
The wet spot can be downstream of the leak.
Damp drywall, a ceiling stain or the sound of water when the fixtures are off.
A leaking supply connection can keep releasing water while the system is pressurized—even with the faucet off.
HOW WE NARROW IT DOWN
Compare the leak’s timing with water use, then trace moisture toward the source. Controlled isolation helps narrow the pipe or fixture involved before access is opened.
WHAT THE REPAIR MAY INVOLVE
Repair the confirmed pipe or connection, check support and nearby damage, then test before the opening is closed.
How leaks are located ↗Avoid the wet area. If water is actively spreading and the house shutoff is safely accessible, close it. Do not force a stuck valve.
Get help hereExplore the supply lines, individually vented fixtures and sloping building drain. The cutaway exposes connections normally hidden by walls and floors. Repair planning uses the measurements and access in your home.
Why those vents matter. Each trap holds a water seal. The vent lets air move so draining water does not siphon that seal away. Select Drains & vents to see the trap arms, separate vent risers and downstream-facing connections. ICC’s illustrated venting guide ↗
Read all 10 leak explanations without using the model
Inside a wall
A leaking supply connection can keep releasing water while the system is pressurized—even with the faucet off.
Compare the leak’s timing with water use, then trace moisture toward the source. Controlled isolation helps narrow the pipe or fixture involved before access is opened.
How leaks are located ↗Toilet & floor
This example shows a seal/flange leak during flushing. A supply or tank leak can appear at other times; tank-to-bowl leakage may leave no puddle.
Inspect the supply and tank first. Where indicated, remove the toilet to examine the seal, flange and floor support. A tank dye test checks a different, internal leak.
Toilet repair ↗Tub & shower
This example starts only when a high bath reaches the overflow. A drain shoe, valve, shower arm or enclosure can produce similar evidence under different conditions.
The plumber checks the supply, drain, overflow and enclosure one at a time. Watching which check produces water below locates the escape path.
Bathroom fixture repairs ↗Bathroom sink
A trap or drain joint usually leaks as the sink empties. Supply hoses and shutoffs remain under pressure when the tap is closed.
Dry accessible surfaces, then isolate supply, faucet, drain and sink-seal sources. Water on the trap may have dripped from above.
Inside a faucet & sink ↗Kitchen & disposal
Watch whether it follows faucet use, draining, disposal operation or a dishwasher cycle. A pressurized connection can leak between uses.
Trace the wet point from the faucet and basket through the disposal, trap and dishwasher hose. The source determines which connection needs repair.
Garbage disposal help ↗Laundry & hoses
The example is an inlet-hose connection under pressure. Water during pump-out may instead involve the drain hose or an overflowing standpipe.
Match the leak to the cycle. Filling directs attention to the inlet hoses and valves, while discharge directs attention to the drain hose and standpipe.
Laundry plumbing ↗Water heater
The cold inlet on this electric tank is leaking. Water runs down the jacket from that fitting and collects at the base.
Trace wet connections back toward the source. Check inlet/outlet fittings, pressure and expansion conditions, drain valve, relief outlet and tank separately.
Water heater guide & cutaway ↗Main shutoff & PRV
Supply-side faults can leak with every fixture off. Measure pressure and inspect the affected connections to guide the repair.
Inspect the valve body, handle stem and pipe connections. Pressure readings before and during water heating can reveal excess supply pressure or expansion.
Pressure regulator help ↗Slab & buried lines
A buried supply leak may run continuously. Irrigation, groundwater and a drain fault can create other wet-area patterns.
Meter checks, isolation, pressure observations and location tools help distinguish the house supply, service line and other sources.
Water service line help ↗Outdoor faucet
A split frost-resistant faucet barrel may leak inside the wall only during use. Stem, seat and vacuum-breaker faults behave differently.
Check the stem, outlet, vacuum breaker, body and indoor connection. Confirm the barrel length and connection before replacement.
Outdoor faucet help ↗Find the cause.
Then choose the fix.
See how moisture readings, isolation and inspection help trace water through a home. Choose a tool below to learn what it measures.
WHERE IS IT WET?
Moisture mapping
Checks accessible surfaces to map moisture and narrow the affected area. Comparing readings helps guide the next inspection.
How to interpret itCompare readings on similar materials and follow the moisture pattern to the next inspection point.
FLIR: confirming moisture patterns ↗Quiet house.
Moving meter?
First account for toilets, irrigation, ice makers, softener cycles and other automatic uses. If you have a safely readable customer meter or utility display, compare readings during a period with all water use stopped.
EPA suggests comparing meter readings during two hours with all water use stopped. Movement during that interval means water passed through the meter. For an active leak, call for help promptly and close a safely accessible working shutoff.
EPA’s household leak checks ↗Found it.
Put it right.
Explore local leak repairs, valve replacements and the connections behind the finished wall. These are projects from our past-work feed.
Recent Leak Repair Jobs
Sometimes a connection.
Sometimes a bigger conversation.
LOCAL LEAK REPAIR / FIND YOUR CITY
Leak repair in Sandy & across the valley.
Based in Sandy, we help homeowners across the Salt Lake Valley and nearby communities. Choose your city for local plumbing information and completed work.
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Read verified reviewsQuestions about leak detection & repair
Questions Homeowners Ask About Our Leak Repair
What counts as leak repair?
We repair leaking pipes, valves, supply hoses, fixture connections and outdoor faucets, including leaks concealed by walls or ceilings. For a buried water-service line in the yard, we refer the excavation and replacement work to Bumble Bee Plumbing. The water-service guide explains that route and the repair options.
Do you give pricing before starting leak repair work?
Yes. Once we locate the leak, we explain the repair and price, including the access needed to reach it. If opening the area reveals additional damage, we show you what changed and discuss the cost before doing more work.
Can I text photos of my leak before booking?
Yes. Send a wide view, a close-up of the wet area and any safely visible connection. Tell us when the water appears. Take photos from dry, stable ground and keep clear of wet electrical equipment.
How fast can you come out for an active leak?
Call for current availability when water is actively spreading. Same-day help depends on the schedule and location. Online booking is useful for a contained problem; an active leak is better discussed by phone so we can understand the urgency and next step.
What should I do RIGHT NOW if I have an active leak?
Stop using the affected fixture. If a working shutoff is safely accessible, close it without forcing it; for a supply leak you cannot isolate at the fixture, use the house main if safe. Keep clear of wet electrical equipment, contaminated water and a sagging ceiling. Call for help. Move dry belongings only when safe and document the damage without delaying water control. A house valve does not isolate an upstream service-line leak; call your water provider or plumber if you cannot stop the water safely.
What is a slab leak and how is it found?
The term usually describes a leak in plumbing below a concrete slab. Supply leaks and drain leaks need different tests. Moisture, unexplained water use and floor temperature help guide the investigation. The affected system and location are confirmed before comparing access through the slab, a reroute or replacement of the affected piping.
What's the most common cause of pinhole leaks in copper pipe?
Copper corrosion can involve water chemistry, installation conditions, flow and other factors. We consider the failed section, the condition of accessible piping, pressure observations and leak history before recommending a focused repair or a larger replacement.
Should I repair a leak or repipe?
A damaged fitting or short pipe section can often be repaired while keeping sound piping in place. Widespread corrosion or recurring failures may make a new branch or reroute more worthwhile. We show you the condition and compare the access and cost of those options.
Do you do whole-home repipes?
Yes. We can compare replacement of an affected branch with a whole-home repipe. The proposal names the pipes being replaced, their route, the access openings and who restores the walls and finishes.
Will my homeowners insurance cover the leak repair?
Ask your insurer how your policy handles the cause of the leak, resulting water damage and the repair. Keep photos, dates and invoices. We can document what we found and the plumbing work performed.
Can you patch a leak in PEX?
A damaged PEX section or fitting can often be replaced using a connection system compatible with that tubing and installation. The pipe markings, fittings, support and cause of damage matter. We repair the affected section and test the completed connections.
Can you repair galvanized pipe?
Sometimes a limited repair is practical. Corrosion, restricted flow, the condition of adjacent threads and the risk of disturbing old piping affect the decision. We explain whether repairing a connection, replacing a section or planning more extensive work makes sense for the pipe we actually find.
What about SharkBite fittings — do you use those?
We choose fittings to match the pipe material and location. Listed push-to-connect fittings can be suitable for permanent repairs, including approved concealed uses. The pipe preparation, insertion depth and support need to follow that fitting’s instructions.
Will you need to cut my drywall to fix the leak?
If the failed pipe is inside a finished wall, we may need to open it. We explain the location and size of the opening first, allowing enough room to reach the damage, make the connection and support the repaired pipe.
Do you do the drywall repair too?
No — Mountain Man Plumbing focuses on the plumbing. Access cuts get left clean, square, and ready for a drywall person. If you don't have one, I can refer to a trusted local drywaller who handles patch-and-paint work.
Can you repair a leaking outdoor hose bib or sillcock?
Yes. Leaks can involve the stem, seat, vacuum breaker, body or indoor connection. A freeze-split frost-resistant body may leak into the wall only while the faucet runs. The exact model, barrel length and access determine whether it can be repaired or needs replacement.
My toilet keeps "phantom flushing" or running — is that a leak?
Water escaping from the tank into the bowl can cause the fill valve to restart between flushes. A worn flapper or flush-valve seal is a common cause. Water rising into the overflow tube points to the fill level or fill valve. A dye test in the tank helps reveal water slipping past the flush seal.
What about a leak under the slab — do I have to dig up the floor?
A supply line can sometimes be rerouted through an accessible wall or ceiling. Another option is a local opening through the slab to repair the damaged section. Pipe condition, the available route and the disruption to the room help decide which is practical.
Do you offer second opinions on leak repair or repipe quotes?
Yes. Send the estimate and any photos or test results. We can explain the work included and compare a local repair, a new branch or a larger replacement where those options fit.
What should I do before the plumber arrives for leak work?
Stop using a fixture that is leaking and isolate water only if its shutoff is safely accessible and works normally. Keep people clear of wet electrical equipment or damaged ceilings. Note when the water appears and take photos from a safe location. Clear dry access where practical; do not move wet electrical equipment or enter an unsafe crawlspace.
Can you help if I do not know where my main water shutoff is?
Yes. We can help identify the house shutoff, check its operation and explain how to use it. Its location varies by home. Do not force a seized valve or operate utility-owned valves or meter equipment yourself; call for help if you cannot safely isolate an active leak.
Are you licensed and insured in Utah?
Mountain Man Plumbing is licensed and insured. Utah plumbing contractor license #12992295-5501 can be checked through the Division of Professional Licensing public lookup.
What areas do you service for leak repair?
Mountain Man Plumbing serves Sandy, Draper, South Jordan, West Jordan, West Valley City, Murray, Cottonwood Heights, Millcreek, Taylorsville, Herriman, Riverton, Holladay, Midvale, and the broader Salt Lake County area. We also handle Park City (Summit County), Alta, and Lehi (Utah County).
What makes Mountain Man Plumbing different from larger plumbing companies on leak work?
We show you where the water starts, explain how we can reach and repair it, and give you the price before the work. If opening the area reveals additional damage, we discuss the options with you before expanding the job.
References behind this guide
- ICC: individual fixture venting principles
- Charlotte Pipe: DWV fitting patterns
- EPA WaterSense: meter checks and common household leaks
- Fluke: thermal imaging and moisture investigation
- Copper Development Association: corrosion and installation factors
- Woodford: frost-resistant faucet troubleshooting
- SharkBite: listed applications and installation requirements
- Utah Insurance Department: home claims information
- Red Cross: water and electrical hazards
- Utah DOPL: verify a license
LOCAL PEOPLE / OUR SANDY OFFICE
Right here.
Close to home.
Mountain Man Plumbing
688 East Union Square, Suite 204Sandy, UT 84070
Serving homes across the Salt Lake Valley.
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