The Best Leak Detection & Repair in Las Cruces

Affordable Plumbing and Heating leads Las Cruces leak detection and repair for fast response and trying the simplest fix first.

By The Scoop Editorial Team · How we pick · Updated July 2026

Editor's Pick

Affordable Plumbing and Heating

★★★★★ 4.9 · 302 reviews

Open 9 AM–5 PM most days, closed Sun

Affordable Plumbing and Heating earns its top spot for leak work through speed and a practical approach to the fix. One customer describes a hard-to-trace main line leak that the crew worked through methodically until they found it. A backyard faucet leak was resolved in ten minutes flat, and a technician arrived within the hour on another call and left with the leak fully stopped. On a trickier faucet issue, the crew first tried a simpler quick-connect hose repair before recommending a full faucet replacement, saving the homeowner an unnecessary cost when the smaller fix would do.

"The pricing was explained before they came out which was helpful since we manage a rental property and won't be on site at time of visit."Verified review
Best for: a leak that has been hard to pin down or track to its source
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Affordable Plumbing and Heating, Leak Detection & Repair in Las Cruces
Affordable Plumbing and Heating
TOP OF THE TOWN LAS CRUCES, NM THE SCOOP LEAK DETECTION & REPAIR
2No. 2 in Las Cruces

Maddox Plumbing

★★★★★ 4.9 · 953 reviews

Open 24/7

Maddox Plumbing Inc is repeatedly credited with thorough, whole-house leak checks rather than a narrow look at the reported symptom. One customer had every water source in the house checked and was reassured that a feared slab leak was not actually present, a diagnosis that avoided a much larger repair. Beyond diagnosis, the crew has repaired numerous leaks across a single property in one engagement, installed a leak-free replacement faucet, and paired a toilet leak fix with a gas shutoff valve install in the same visit, showing comfort moving between water and gas lines.

"Maddox is the best, and JD did great work fixing our plumbing leak."Verified review
Best for: ruling out a slab leak or checking a whole house at once
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Maddox Plumbing, Leak Detection & Repair in Las Cruces
Maddox Plumbing
3No. 3 in Las Cruces

One Call Plumbing

★★★★★ 4.6 · 68 reviews

Open 8 AM–5 PM, closed Sun & Sat

One Call Plumbing LLC moves fast on significant leaks and leaves the property as they found it. A major main line leak just inside a garage was identified and repaired promptly, and a separate leak under a washroom went from estimate to completed fix in under four hours, with the homeowner appreciating how directly the crew communicated during the visit. Customers specifically note the crew's care in leaving the yard undisturbed after digging to reach a line, a detail that matters when leak repair involves excavation near landscaping, irrigation, or a driveway close to the house.

"We had a leak under our washroom and they came out and did the estimate and fixed the leak in just under 4 hours."Verified review
Best for: a bigger leak that requires digging without wrecking the yard
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One Call Plumbing, Leak Detection & Repair in Las Cruces
One Call Plumbing
4No. 4 in Las Cruces

Sun City Plumbing & Heating

★★★★★ 4.9 · 1597 reviews

Open 24/7

  • NATE Certified
  • Trane Comfort Specialist
  • Since 1984
  • Warranty

Sun City Plumbing & Heating goes beyond stopping the drip on leak calls. An outdoor faucet leak was fixed with minimal disruption to the surrounding landscaping, and a separate leak repair included adding a support brace and treating for mold that had started to develop, addressing the consequence of the leak and not just its source. The crew has also responded to a leaking water softener issue and arrived late on a Friday night to stop an active leak rather than making the homeowner wait for the next business day.

"Got right to the task at hand and fixed the leaky outdoor faucet in short order with minimal disruption."Verified review
Best for: a leak that has already caused secondary damage like mold
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Sun City Plumbing & Heating, Leak Detection & Repair in Las Cruces
Sun City Plumbing & HeatingPhoto: Sun City Plumbing & Heating
5No. 5 in Las Cruces

Las Cruces Plumbing & Gas

★★★★★ 4.5 · 132 reviews

Open 8 AM–5 PM, closed Sun & Sat

  • Licensed
  • Warranty

Las Cruces Plumbing & Gas LLC is consistently mentioned for repairing leaks with minimal collateral damage. A ruptured pipe that was sending water down the street toward a garage was found and repaired quickly, and a separate bathroom leak was fixed without tearing out the flooring, sparing the homeowner a much larger repair bill. The office side gets credit too, with a dispatcher understanding the described problem clearly over the phone before a technician was even sent out, and a same-day fix for a leaking hot water heater.

"The technician was knowledgeable, friendly, and respectful of my home."Verified review
Best for: fixing a leak without tearing out flooring or walls
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Las Cruces Plumbing & Gas, Leak Detection & Repair in Las Cruces
Las Cruces Plumbing & Gas

How Las Cruces's Top Leak Detection & Repair Compare

How Las Cruces's top leak detection & repair providers compare
Business Hours Known for
Affordable Plumbing and Heating Top Pick 9 AM–5 PM a leak that has been hard to pin down or track to its source
Maddox Plumbing Open 24 hrs ruling out a slab leak or checking a whole house at once
One Call Plumbing 8 AM–5 PM a bigger leak that requires digging without wrecking the yard
Sun City Plumbing & Heating Open 24 hrs a leak that has already caused secondary damage like mold
Las Cruces Plumbing & Gas 8 AM–5 PM fixing a leak without tearing out flooring or walls

What People Are Saying

★★★★★
AP is prompt, professional, efficiently, clean and friendly.
Affordable Plumbing and Heating
★★★★★
Very professional installation of new parts and fittings for our water meter and connections.
Maddox Plumbing
★★★★★
Service was amazing barely heard him cool people thank you javier the one who did it immediately cooled down it was great thank you guys…
One Call Plumbing

Leak Detection & Repair in Las Cruces

A hidden leak in Las Cruces can run for weeks before it surfaces, quietly raising a water bill or softening drywall behind a wall. Between aging supply lines, hard water accelerating corrosion, and outdoor faucets exposed to wide temperature swings, leaks show up in more places here than homeowners expect. We read the leak-specific feedback across every plumbing company in this market and ranked the crews Las Cruces homeowners trust most to find the source quickly and repair it right the first time.

Why hidden leaks are harder to catch in a Las Cruces home

Dense caliche soil holds water differently than looser ground, which means a leak underground can travel sideways along a compacted layer before surfacing far from its actual source. That makes visual inspection alone unreliable for slab or yard leaks, and it is a major reason experienced local leak specialists rely on acoustic listening equipment or moisture mapping rather than digging based on where water first appears on the surface.

Indoor leaks present their own detection challenge. A slow leak behind a wall or under a slab foundation, common in homes built during the region's mid-century growth, can run for months without an obvious sign beyond a gradually rising water bill. Catching these early depends on homeowners paying attention to water usage patterns and calling for a professional check when a bill jumps without an obvious explanation like a new appliance or extra guests.

Outdoor faucets and irrigation lines: a Las Cruces-specific leak risk

Outdoor hose bibs and drip irrigation lines see heavy, near-constant use across the Mesilla Valley's long growing season, and that use combined with wide day-to-night temperature swings accelerates wear on fittings and connections. A slow drip at an outdoor faucet is easy to dismiss, but left alone it can undermine a foundation edge or feed water into soil against a home's exterior wall, turning a minor fixture leak into a structural concern over time.

Freeze events during winter add another risk specific to outdoor plumbing. A hard freeze that catches an unprotected outdoor line off guard can crack a fitting that then leaks steadily once temperatures rise again, sometimes not becoming obvious until weeks after the freeze itself. Insulating exposed outdoor lines before the coldest stretches of winter is a small step that prevents a much larger leak repair later.

What separates a real fix from a temporary patch on a leak

Stopping the visible drip is the easy part of leak repair; confirming the underlying cause will not simply resurface elsewhere is what separates a complete repair from a temporary one. A corroded fitting replaced without addressing the water chemistry that corroded it, for instance, may fail again within a similar timeframe unless something about the underlying condition changes.

A thorough leak repair also accounts for any damage the leak already caused before it was found: developing mold, weakened drywall, or a brace needed to support a fixture that was compromised by sustained moisture exposure. A repair that addresses only the pipe or fitting and ignores the secondary damage leaves the homeowner with a second, separate problem to solve on their own.

What to Know Before You Choose

Questions Las Cruces Locals Ask

Who is the best leak detection company in Las Cruces?

Affordable Plumbing and Heating is our top pick for leak detection and repair in Las Cruces. Service-specific feedback points to methodical work on hard-to-trace leaks, fast within-the-hour response, and a habit of trying the simplest fix before recommending a full replacement. Maddox Plumbing is a strong runner-up, especially for a whole-house leak check that can rule out a slab leak.

How do I know if I have a slab leak?

Common signs include an unexplained rise in your water bill, a warm spot on the floor if the leak involves the hot water line, the sound of running water when no fixtures are in use, or damp carpet and flooring without an obvious source. Because caliche soil can mask how a leak spreads, a professional check with proper detection equipment is the most reliable way to confirm one.

Can a small leak really cause serious damage?

Yes. A slow leak that seems minor can lead to mold growth, weakened drywall or subflooring, and even structural concerns near a foundation if the water travels into surrounding soil over an extended period. The damage tends to accumulate quietly, which is why catching a leak early matters more than the size of the drip itself.

Why does my outdoor faucet keep leaking?

Outdoor faucets in this region see heavy seasonal use and are exposed to significant temperature swings between summer heat and winter freezes, both of which wear down washers and fittings faster than indoor fixtures experience. A freeze event that catches an unprotected line can also crack a fitting that only starts leaking once temperatures warm back up.

Will fixing a leak require tearing out my floor or wall?

Not always. Many leaks can be accessed and repaired through a small access point once the source is accurately located, and several Las Cruces plumbers specifically prioritize minimizing demolition. Ask directly whether a less invasive repair option exists before agreeing to any flooring or wall removal.

How quickly should I call a plumber after noticing a leak?

As soon as possible. Even a leak that looks minor can be actively causing damage behind the wall or under the flooring that is not yet visible. Same-day or next-day response is available from several plumbers in this market for an active, visible leak, and calling early generally limits both the damage and the eventual repair cost.

Still deciding? You can't miss with Affordable Plumbing and Heating, our top pick. Call Affordable Plumbing and Heating
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