Leak Detection & Repair in North Bay, Ontario

Hidden leaks behind walls, under floors, and in ceilings can cause thousands of dollars in damage before you even know they're there. We use professional detection equipment to pinpoint leaks without tearing your home apart — then fix them right.

Non-Invasive Detection
Licensed & Insured
Emergency Available

Leak Detection — Quick Facts

Typical Cost $250–$600 (detection + repair)
Detection Methods Acoustic, thermal, camera, pressure testing
Emergency Available Yes — active leaks
Common Locations Behind walls, under slabs, ceiling cavities
Damage Prevention Catch it early, save thousands

North Bay Plumbers provides professional leak detection and repair services across North Bay, Callander, and Sturgeon Falls. Using acoustic listening equipment, thermal imaging, sewer cameras, and pressure testing, we locate hidden leaks behind walls, under concrete slabs, and in ceiling cavities without destructive exploratory cutting. Leak detection typically costs $250–$600 including the repair for most residential leaks. Early detection prevents mould growth, structural damage, and water bills that can run into thousands. Call 705-482-1253.

Signs You May Have a Hidden Leak

These warning signs often go ignored for weeks or months — but every day a hidden leak goes undetected, the damage compounds. If you're noticing any of these, call us before the problem gets expensive.

Unexplained increase in your water bill — even $20–30/month more could indicate a significant hidden leak in your system
Sound of running water when all fixtures are off — if you can hear water moving through pipes with nothing running, water is escaping somewhere
Wet spots, stains, or discolouration on walls or ceilings — visible moisture damage means the leak has been active long enough to saturate the material
Musty or mouldy smell in specific areas of the house — persistent dampness behind walls creates ideal conditions for mould growth
Warm spots on the floor (hot water line leak under slab) — if a section of your floor feels noticeably warm, a hot water line may be leaking beneath the concrete
Dropping water pressure over days or weeks — gradual pressure loss usually means water is leaking out of the system before it reaches your fixtures

How We Detect and Repair Hidden Leaks

We follow a systematic process that starts simple and escalates only as needed — so you're never paying for equipment or time that isn't necessary.

1

Visual Inspection

We start with a thorough visual check of all exposed plumbing, fixtures, water heater, and utility connections. Many leaks are found at accessible joints and valves before advanced equipment is needed.

2

Pressure Testing

We isolate and pressurize sections of your plumbing system to confirm a leak exists and narrow down which section it's in. If pressure holds, there's no leak — simple and definitive.

3

Advanced Detection

For hidden leaks, we use acoustic listening equipment to hear water escaping inside walls or under slabs, thermal imaging to detect temperature differences from moisture, and sewer cameras for drain line leaks.

4

Pinpoint & Access

Once we've located the leak to within inches, we make the smallest possible access point. No unnecessary drywall removal or floor cutting. Targeted access means less repair work after.

5

Repair & Verify

We repair the leak, re-pressurize to confirm it's sealed, and verify with a follow-up check. We'll also flag any other areas that show early signs of potential leaks.

Why Leaks Are So Common in North Bay Homes

North Bay's climate and housing stock create specific leak risks that homeowners should understand. Here's what we see in the field every week.

Freeze-Thaw Damage

North Bay's extreme temperature swings — from -35°C in January to +30°C in July — put constant stress on pipe joints and fittings through expansion and contraction. This freeze-thaw cycling loosens connections over time, creating slow leaks that may not show symptoms for months.

Slab Leaks in Older Homes

Some homes in West Ferris and downtown North Bay have water lines running under the concrete slab foundation. When these copper lines corrode or shift, they leak under the slab — invisible from above but detectable with thermal imaging and acoustic equipment.

Spring Melt Moisture vs Leaks

During March-April spring melt, many North Bay homeowners see moisture in their basements and assume it's groundwater. Sometimes it is — but sometimes it's a slow plumbing leak that's been masked by seasonal moisture. We can tell the difference.

Insurance & Mould Concerns

Ontario homeowner insurance typically covers sudden leak damage but NOT gradual damage from undetected leaks. A small leak that goes unnoticed for months can cause mould growth behind walls — a health hazard and a renovation nightmare. Early detection is the cheapest insurance you can buy.

How Much Does Leak Detection Cost in North Bay?

We believe in transparent pricing. Here's what professional leak detection and repair typically costs for residential properties in North Bay.

$250 – $600
Leak detection and repair in North Bay (CAD)
  • Leak detection (locating the leak): $250–$400
  • Detection + simple repair (accessible location): $350–$600
  • Slab leak detection (specialized equipment): $400–$600
  • Complex repair (in-wall, under slab): quoted after detection
  • Thermal imaging scan (full home): $350–$500
If we can't find the leak, you don't pay for detection

Leak Detection Questions

How do you find a leak without opening the walls?

We use three non-invasive methods: acoustic listening equipment that amplifies the sound of water escaping through pipes, thermal imaging cameras that detect temperature differences caused by moisture, and pressure testing that isolates which section of pipe is leaking. We only open walls once we've pinpointed the exact location.

How much does leak detection cost in North Bay?

Professional leak detection in North Bay costs $250–$400, with most repair-inclusive jobs running $350–$600. Complex situations like slab leaks or multi-story buildings may cost more. We quote after assessment and never charge for detection if we can't find the leak.

Can a small leak really cause serious damage?

Yes. A leak as small as one drip per second wastes over 11,000 litres of water per year and can cause mould growth within 48 hours in the right conditions. Behind-wall leaks that go undetected for months can compromise structural framing, destroy insulation, and require extensive renovation.

My water bill went up but I can't see a leak. Should I call?

Absolutely. An unexplained water bill increase is the #1 indicator of a hidden leak. Even a small increase of $20–30/month could indicate a significant leak somewhere in your system. We can usually locate the source within an hour.

Do you repair the leak or just find it?

Both. We handle detection and repair as one service. Once we locate the leak, we repair it on the same visit in most cases. For complex situations (slab leaks, main line issues), we may need to schedule the repair — but we'll give you a complete plan and quote before leaving.

What North Bay Homeowners Say About Our Leak Detection

"Water bill jumped $80 in one month with no explanation. They came out, did a pressure test, then used some kind of listening device and found a leak in the wall behind our shower. Tiny pinhole in a copper joint. Fixed it in 20 minutes. Bill went back to normal the next month."
Heather M.
Hornell Heights • Hidden Leak
"Noticed a warm spot on our basement floor. Turns out we had a hot water line leaking under the slab. They found it with thermal imaging without touching the floor, then accessed it through a small section of concrete. Minimal mess, maximum skill."
James P.
West Ferris • Slab Leak
"We kept smelling something musty in the spare bedroom. Turned out there was a slow leak from the upstairs bathroom feeding into the wall cavity. They found it, fixed it, and we caught it before mould became a serious problem. So glad we called when we did."
Maria S.
Callander • Wall Leak

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Suspect a Hidden Leak?

Don't wait for the damage to show. Call now for professional detection.

Call 705-482-1253
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