Call (416) 555-0199

Advanced Non-Invasive Leak Detection

A hidden water leak can silently damage your home for weeks or even months before you notice the signs. By the time you see a stain on the ceiling or smell mould behind a wall, thousands of dollars in structural damage may have already occurred. At Toronto Pro Plumbing, we use state-of-the-art non-invasive leak detection technology to locate hidden leaks accurately and quickly — without tearing apart your walls, floors, or ceilings.

Our licensed technicians are equipped with acoustic leak detection sensors and thermal imaging cameras that allow us to pinpoint the exact source of a leak with precision. Whether it is a slab leak beneath your foundation, a leaking pipe joint inside a wall cavity, or a slow drip under your kitchen sink, we find it and fix it right the first time.

Our Leak Detection Methods

We employ multiple proven technologies to ensure no leak goes undetected, regardless of its location or severity.

  • Acoustic leak detection — sensitive microphones and ground sensors listen for the sound of water escaping from pressurized pipes, even through concrete and soil
  • Thermal imaging — infrared cameras detect temperature variations caused by moisture behind walls, under floors, and above ceilings
  • Water pressure testing — we pressurize your plumbing system to identify drops that indicate a leak in the supply lines
  • Moisture meters — handheld instruments measure moisture levels in building materials to confirm the presence and extent of water damage

Types of Leaks We Detect and Repair

Our team handles every type of residential and commercial water leak. No leak is too hidden or too complex for our equipment.

  • Slab leaks beneath concrete foundations
  • Pipe joint leaks inside walls and ceilings
  • Faucet and fixture leaks (kitchen, bathroom, laundry)
  • Supply line leaks and water main breaks
  • Radiator and heating system leaks
  • Toilet base and wax ring leaks
  • Water heater tank and connection leaks
  • Underground and outdoor pipe leaks

Signs You May Have a Hidden Leak

Many leaks remain hidden for long periods before they are discovered. Watch for these common warning signs that indicate a concealed water leak in your home:

  • Unexplained increase in your monthly water bill
  • Sound of running water when all taps and fixtures are turned off
  • Damp, discoloured, or bubbling spots on walls, ceilings, or floors
  • Musty or mouldy odours in rooms, closets, or crawl spaces
  • Warm spots on the floor (a common sign of a hot-water slab leak)
  • Reduced water pressure throughout the home
  • Foundation cracks or shifting that may indicate long-term water erosion

The Cost of Ignoring a Leak

Even a small leak can waste thousands of litres of water per year and lead to serious consequences if left unrepaired. Ignoring a leak can result in structural wood rot, mould and mildew growth that poses health risks, damage to drywall, flooring, and insulation, foundation erosion and settlement, and significantly higher water and utility bills. Early detection and prompt repair saves you money and protects the integrity of your property.

If you suspect a hidden leak or have noticed any of the warning signs above, do not wait. Call us at (416) 555-0199 or request a free estimate online. We will locate the problem quickly and provide an upfront quote for the repair.

Book Leak Detection

Frequently Asked Questions

How does non-invasive leak detection work?

Non-invasive leak detection uses advanced acoustic sensors and thermal imaging cameras to locate hidden leaks without cutting into walls, floors, or ceilings. Acoustic equipment listens for the sound of water escaping from pipes, while thermal cameras detect temperature differences caused by moisture behind surfaces. This allows our technicians to pinpoint the exact location of a leak with minimal disruption to your property.

What are the signs of a hidden water leak?

Common signs of a hidden water leak include an unexplained increase in your water bill, the sound of running water when all fixtures are off, damp or discoloured spots on walls, ceilings, or floors, musty or mouldy odours, reduced water pressure, and warm spots on the floor (which may indicate a slab leak). If you notice any of these signs, call (416) 555-0199 for a professional inspection.

How much does leak detection and repair cost in Toronto?

Leak detection costs in Toronto typically range from $200 to $500 depending on the complexity and location of the leak. Repair costs vary based on the type of leak and the work required, ranging from $150 for a simple faucet fix to $2,000 or more for slab leak repairs. We provide a free, upfront quote before starting any work so you know exactly what to expect. Call (416) 555-0199 for a free estimate.

Other Services We Offer

Toronto Pro Plumbing handles all your residential and commercial plumbing needs.

Emergency Plumbing

Burst pipe? Flooding basement? Our emergency team is available 24/7 across Toronto and the GTA.

Learn More →

Drain Cleaning

Clogged drains slowing you down? We use professional-grade equipment to clear any blockage fast.

Learn More →

Water Heater Repair

No hot water? We repair and install all major brands of tank and tankless water heaters.

Learn More →

Toilet Repair

Running, leaking, or clogged toilets repaired same-day. We fix all makes and models.

Learn More →

Pipe Repair & Replacement

Old or damaged pipes? We offer trenchless repair and full pipe replacement services.

Learn More →

Suspect a Hidden Leak?

Our leak detection experts use non-invasive technology to find and fix leaks fast. Free estimates, no hidden fees.