Underground
Pipe Repair
A failed underground pipe is one of the most serious pool leak scenarios. Water escapes into the soil with every pump cycle — and in DFW's clay-heavy ground, that can lead to structural movement. We locate the failure precisely and repair it the right way.
Find It First. Then Fix It.
Underground pipe failures are the hardest pool leaks to locate — and the most damaging to leave unaddressed. The pipe is buried. The leak isn't visible. And every time the pump runs, more water is pushing into the soil beneath the pool and surrounding structure.
Most underground pipe leaks aren't visible at the surface — they occur beneath the deck or soil where the pipe fails.
We don't excavate until we know exactly where the failure is. Guessing the location turns a small repair into unnecessary demolition. Using pressure testing and acoustic detection, we pinpoint the break to within inches before any digging begins. That precision matters — both to minimize disruption to your deck and yard, and to make sure we're repairing the right section of pipe.
Most underground pipe failures we see are not random. They're caused by soil movement pressing against the pipe, root intrusion, or joint failures where the pipe meets the pool shell or equipment pad. Knowing the cause determines the right repair.
With over 20,000 repairs completed across DFW, we've seen every type of underground pipe failure — and more importantly, how to fix them without unnecessary excavation.
Schedule a Service Call
The Right Repair Starts With the Right Diagnosis
Underground pool plumbing runs under the deck, through the soil, and connects to the shell at multiple points. Each section fails differently — and each requires a different diagnostic approach before any repair begins.
Pressure-Side Line Failures
Pressure-side failures occur on the lines that push water from the pump back to the pool. These are under constant pressure when the equipment runs, meaning water loss occurs every time the system is running. We pressure test the return lines to isolate the failure, then excavate precisely and repair the broken section.
Suction-Side Line Failures
Suction-side failures occur on the lines pulling water from the pool to the equipment. These leaks draw air into the system, which affects pump performance and can cause the pump to lose prime or run inefficiently. We test suction lines independently and repair the failure without disrupting the full plumbing run.
Pipe-to-Shell Joint Failures
Where the underground pipe connects to the pool shell — at the skimmer, main drain, or return fittings — is a common failure point in DFW. Soil movement pulls the pipe away from the fitting, breaking the seal. These failures will continue to worsen unless the connection is properly restored. We repair the joint and reseal the connection to the shell, restoring integrity at the point of entry.
How It Works
We locate the failure before we touch the ground.
Pressure Testing & Acoustic Detection
We isolate and pressure test each plumbing line individually, isolating the system into sections to identify exactly which line is losing pressure. When a line fails to hold pressure, we use acoustic detection equipment to listen for the leak underground. The sound of pressurized water escaping from a pipe break is distinct and can be located with the right equipment. We confirm the location through testing before excavation — not by digging to search for the leak.
Written Repair Estimate
You receive a clear written estimate before any work begins. Excavation scope, repair method, and surface restoration — all in writing. No surprises.
Precision Excavation & Repair
We excavate only where the failure is. The broken pipe section is cut out and replaced with new material, properly joined and verified under pressure before backfill. We don't disturb more of your deck or yard than necessary.
Written Warranty Issued
Every pipe repair is backed in writing. 3-year warranty on underground pipe repairs and replaced sections. Transferable to new homeowners at no additional cost.
If something isn't right, we come back. That's not a policy — it's how we operate.
Written Warranties on Every Repair & Structural Component
Every repair is backed in writing, with clear coverage and real accountability. Warranties are transferable to new homeowners at no additional cost — a documented asset at closing.
Underground Pipe Repair — FAQ
We pressure test each plumbing line individually, isolating the system into sections to identify exactly which line is losing pressure. Once we've confirmed which line is failing, we use acoustic detection equipment to listen for the leak underground. The sound of pressurized water escaping from a pipe break is distinct and can be located with the right equipment. We confirm the location through testing before excavation — not by digging to search for the leak.
In most cases, yes — some concrete removal is required to access the pipe. The extent depends on the depth and location of the failure. Because we pinpoint the break before digging, we remove only what's necessary. We can also restore the concrete surface after the repair is complete.
Most repairs are completed in one to two days. The timeline depends on the depth of the pipe, the length of the damaged section, and whether deck restoration is required. We'll give you a clear timeline in the written estimate.
Yes. Root intrusion is a common cause of pipe failure in DFW, particularly in older pools where the surrounding landscaping has matured. Roots follow moisture and can infiltrate pipe joints, causing both blockage and structural failure. We assess for root involvement during the diagnostic phase.
No. The pipe repair itself doesn't affect water chemistry. If the pool needs to be partially drained for access, we'll let you know in advance and account for refill and rebalancing in the project timeline.
Think You Have a Pipe Leak?
Tell us what your pool is doing, and we'll run a full diagnostic — pressure testing, acoustic detection, and a written report — before recommending the right repair.
Last reviewed: April 2026