Leak Detection & Repair Services

That Unseen Leak Is Costing You More Than Just Water

Is your water bill suddenly spiking for no reason? Are you hearing the faint sound of running water when all the faucets are off, or noticing a damp spot on your ceiling that seems to grow every day? These are classic signs of a hidden leak, a problem that won’t fix itself and can cause serious, expensive damage to your home’s foundation and structure. Mahi Plumbing is ready to find and fix it, 7 days a week.

Leak Detection & Repair

When you know there's a leak but can't see it, our first job is to pinpoint the source without tearing your house apart. A hidden leak isn't just a nuisance; it's a ticking clock. In the Houston Metro area, we see these issues pop up for all sorts of reasons—from old galvanized pipes finally giving up the ghost to the slow, steady corrosion caused by our notoriously hard water. Even minor shifts in our expansive clay soil can put just enough stress on a pipe fitting to start a slow, damaging drip behind a wall.

Our process goes far beyond a simple visual check. We use careful listening checks that can hear the specific frequency of water escaping a pressurized pipe, even through drywall or a concrete floor. This lets us zero in on the problem. For trickier situations, a surface temperature check can reveal temperature differences caused by moisture, helping us map out the extent of the water's spread. Once we find it, we can talk about the right way to fix it—whether that's replacing a small section of pipe or addressing a failing joint. Sometimes, a persistent leak is a sign of a bigger problem, making an early diagnosis for a potential Slab Leak Repair crucial.

Common signs you have a hidden leak:

• An unexpected increase in your water bill
• The sound of running water when no fixtures are on
• A water meter that spins continuously
• Warm spots on your floor
• Visible mold, mildew, or dark spots on walls and ceilings
• Low water pressure throughout the house
• Cracks appearing in your foundation

We handle all types of general leak detection and repair calls across the Houston Metro, ensuring the problem is solved at the source.

Slab Leak Repair

A leak underneath your home's concrete slab foundation is one of the most serious plumbing issues a homeowner in our area can face. The reason is simple: the "gumbo" clay soil across the Houston Metro is constantly swelling and shrinking with moisture. This movement puts incredible stress on the copper water lines buried in your foundation, eventually causing them to crack, kink, or break. If you ignore it, a slab leak can erode the soil supporting your home, leading to major structural damage that costs a fortune to fix.

This is not a "wait and see" problem. The moment you suspect a slab leak—because you feel a hot spot on the floor, hear water running, or see water seeping out from the edge of your foundation—it's time to call a professional.

How We Find and Fix Slab Leaks

Finding the exact spot of the leak is everything; you'd be surprised how many companies can't get that right and end up breaking concrete in the wrong place. We use advanced professional diagnostic methods to listen for the leak directly through the slab, pinpointing it to within a few feet. Once located, we give you clear, honest options:

• Direct Access: For isolated, accessible leaks, we can make a precise opening in the slab, repair the damaged section of pipe, and patch the concrete. This is often the quickest and most direct fix.
• Rerouting: In many cases, especially with older homes or multiple leaks, the best long-term solution is to cap the broken line at both ends and run a new, durable PEX water line overhead through the attic or around the exterior of the slab. This bypasses the problem entirely and protects you from future under-slab breaks.

A slab leak can sometimes be connected to a failing main line, so a thorough diagnosis may also involve an inspection of your primary Water Line Repair needs. For targeted solutions to this critical issue, learn more about our Leak Detection & Repair Slab Leak Repair services for homes throughout the region.

Water Line Repair

The main water line is your home's lifeline, delivering fresh water from the city's supply, and a break in it can bring your entire household to a halt. Here in the Houston area, we see main line failures from aging pipes, shifting soil that shears the line, or tree roots that slowly constrict and crush it over years. You’ll know you have a problem when you see a sudden, dramatic drop in water pressure, find a perpetually soggy patch in your yard, or get a notice from the city about an abnormally high water bill.

This is another issue that requires immediate attention to prevent water from flooding your yard, damaging your landscaping, or even undermining your driveway or foundation. Our first step is always to confirm the leak's location, often by checking the meter and performing pressure tests. Once we've isolated the break, we can get to work.

What a water line repair involves:

• Carefully excavating the area around the damaged pipe to minimize disruption to your property.
• Cutting out the compromised section of the old line.
• Replacing it with modern, durable materials like new copper or PEX tubing, which are more resistant to corrosion and ground movement.
• Ensuring the new connections are secure and up to code before backfilling the trench.

Sometimes a leak inside the home can be mistaken for a main line issue, when in fact it requires a different kind of Pipe Repair & Repiping. We'll always diagnose accurately before starting any digging. To restore your home's primary water source, see our approach to Leak Detection & Repair Water Line Repair across the Houston area.

Our Approach to Your Home

When you call Mahi Plumbing, you’re getting a local team that treats your home like it's our own. Our licensed and insured technicians (RMP 46529) arrive focused on one thing: finding the real source of your problem quickly and accurately. We show up in trucks stocked with the parts and tools needed to handle most leaks on the first visit, because we know you don’t have time for multiple appointments.

We believe in being upfront. Before any work begins, we’ll walk you through what we’ve found, explain your repair options in plain English, and give you a clear, flat-rate price for the job. There are no surprise charges or hidden fees. Once you give us the go-ahead, we get the job done right with quality parts and workmanship, and we always clean up our work area completely when we're finished.

Related Services

A leak is often a symptom of a broader plumbing issue. If a slow drain is the source of a leak under your sink, it may be time for a professional Drain Cleaning & Rooter Service to clear the entire line and prevent future backups. A sudden, catastrophic leak from a frozen or corroded pipe requires an emergency Burst Pipe Repair to prevent widespread water damage. And if the leak is coming from the base of your tank, a dedicated Water Heater Repair & Service visit is needed to diagnose whether it's a simple valve issue or a sign the tank itself is failing.

Stop Worrying and Start Fixing

A hidden leak is a source of constant stress, driving up your bills while quietly damaging your home. You don't have to live with the uncertainty of not knowing where the water is coming from or how much damage it's doing.

If you suspect a leak anywhere in your Houston Metro home, don't wait for it to get worse. Reach out to Mahi Plumbing today, and let our team reel in the problem for good.