Leak Detection & Repair in Largo, FL
Find the leak before it finds your drywall. Contact Positively Plumbing today to schedule leak detection and get straight answers from a licensed Pinellas County plumber.
Accurate Leak Detection From Pinellas County’s Plumbing Pros
A water leak rarely announces itself. It shows up as a stain on the ceiling, a warm spot on the slab, a high water bill that jumped for no reason, or the sound of running water when every fixture is off. Left alone, even a small leak soaks baseboards, warps floors, and feeds mold inside the wall before anyone sees a drop. Undetected leaks are how a cheap fix becomes costly damage.
The same hands that framed custom homes earlier in his career now find hidden leaks across the plumbing system and repair them cleanly. Written estimate, financing available, no surprises on the invoice. When the pattern of leaks across the house means a repipe is the smarter call, we tell you that honestly — we don’t sell you another spot fix that won’t hold.
Common Signs You Have a Hidden Leak
High Water Bill With No Obvious Cause
A hidden leak behind walls or under the slab often shows up on the bill before it shows up on the drywall. An unexplained spike is one of the most reliable signs of water loss somewhere in the plumbing lines.
Running Water When Everything is Off
If you hear the sound of water moving with every fixture and appliance shut off, water is escaping somewhere it shouldn’t be — and more water is lost every hour it runs.
A Warm Spot on the Floor
A hot-water line leaking under the slab heats the floor above it. It’s one of the clearest signs of a slab leak.
Damp Baseboards, Warped Flooring, or Staining
A soaked baseboard, wet spots on the floor, or a stain on the ceiling trace back to a pinhole somewhere upstream. The visible damage is downstream of the actual plumbing leak.
Low Water Pressure Throughout the House
A leak upstream bleeds off pressure before it reaches your fixtures. Corrosion and mineral buildup do the same. Either way, dropping pressure is worth a look.
Mold, Mildew, or a Musty Smell
Moisture inside a wall cavity from a slow leak grows mold and mildew you can smell before you can see it. Sudden growth after a humid stretch is a red flag.
Leaks We Find and Repair
Slab Leaks
Water lines running under the foundation. We locate the leak acoustically before we open anything, so the repair is targeted, not exploratory. When a slab leak is found alongside a larger repipe, we combine the costs on one estimate.
Hidden Wall Leaks
The soaked baseboard, hairline cracks in the drywall, or damp patches that trace back to a pinhole upstream. We isolate the failed section and open the wall where the leak actually is — minimal disruption, not exploratory demolition.
Pinhole Leaks in Copper
Common in older Pinellas homes, where original copper corrodes from the inside out and starts weeping at multiple points. Once you see one, you usually see another within months, so we tell you honestly when a repipe beats another patch.
Supply and Fixture Leaks
Leaks at shut-off valves, supply lines, and connections behind toilets, sinks, and water heaters. We cut out the failed section, install fresh pipe, and pressure-test before we leave.
Underground and Yard-Line Leaks
The wet patch in the yard, soft ground over the line, or the meter that keeps spinning when the house is quiet. We trace the buried line to its exact location and address the failed section, giving you a clear repair-versus-reroute recommendation.
Water Leak Detection Technology That Protects Your Home
Our water leak detection uses acoustic listening equipment, pressure testing, and thermal imaging cameras to isolate the failed section, so the wall or slab gets opened where the leak actually is — not in three places while we guess.
Thermal imaging detects temperature variations that reveal hidden moisture behind a surface, while pressure testing confirms which line is losing water and acoustic gear pinpoints the exact spot. Moisture meters confirm damp areas without removing any material, and where a buried or slab line needs it, tracer gas testing uses a safe gas to trace water flow to the break underground.
For drain-side problems, a drain line video camera inspection identifies cracks and blockages inside the pipe so we address the real fault, not a guess.
Our Leak Detection & Repair Process
Active Leak Right Now? We Answer Day or Night
An active leak soaking your home is an emergency, and it doesn’t wait for business hours. Positively Plumbing runs 24/7 emergency response across Pinellas County with reliable services and an expert team. A licensed plumber picks up, walks you through shutting off the water while we’re on the way, and gives you a written price before any work begins.
While you wait for the truck: shut off the main water valve at the meter or where the line enters the house, cut power at the breaker if water is near outlets or the panel, and move belongings away from the wet area. Can’t find the shut-off? Stay on the line — we’ll walk you through it.
Why Pinellas County Homeowners Choose Positively Plumbing
Family-Owned and Locally Operated
We are a Largo-based company that values community and personalized service. Kevin runs the trucks — the plumber who finds your leak is the same plumber on the next call, not a rotating roster of techs working off commission. We know the Largo area and the homeowners in it.
Licensed and Insured Professionals
Our plumbers are fully licensed and insured, carrying both general liability and workers’ compensation. Code-compliant work on the first pass from a professional who does it right.
Transparent Pricing
We give you upfront, honest estimates with no hidden fees or surprise charges. Diagnostic, repair options, and the total cost in writing before any work starts, and we account for every line — so you fix the problem without wondering where the money went.
Pinellas Housing Stock Specialists
Polybutylene, galvanized, original copper, and cast iron pipes. We know which 1970s and ’80s Pinellas homes leak in which patterns, and that knowledge finds the source faster and more efficiently.
Service Areas
We provide leak detection and repair services across Largo, Clearwater, Pinellas Park, Palm Harbor, and local properties
throughout the greater Tampa Bay area.
Not sure if you’re in our service area? Call (727) 625-0603 — we’ll tell you straight.
What Customers Say About Us Online
Frequently Asked Questions
Get Your Leak Detection Estimate
Suspect a hidden leak? Contact Positively Plumbing today for accurate leak detection and a repair that holds. You’ll get a straight answer, a written estimate, and work you’ll be glad to recommend.