Leak Detection in the Niagara Region: How to Find and Fix Hidden Leaks
- Alex M
- Mar 27
- 3 min read

Leaks in your plumbing system can cause serious damage if left undetected. Even a small leak can lead to mold growth, water damage, and high water bills. In this blog, we’ll explore how to detect leaks in your home, common causes, and how to fix them. This guide is tailored for homeowners in the Niagara Region, including St. Catharines, Niagara Falls, Welland, Thorold, Fort Erie, Port Colborne, Grimsby, Beamsville, Lincoln, and Pelham.
Common Signs of a Plumbing Leak
1. Unexplained Increase in Water Bills
If your water bill has suddenly spiked without an obvious reason, a hidden leak could be wasting water. Comparing past water bills can help identify unusual increases.
2. Low Water Pressure
A drop in water pressure can indicate a leak in the plumbing system, as water is escaping before it reaches your faucets and fixtures.
3. Water Stains and Discoloration
Yellow, brown, or dark stains on walls, ceilings, or floors may signal water damage from a hidden leak.
4. Mold and Mildew Growth
Leaks create damp environments where mold and mildew thrive. If you notice a musty odor or see mold growth, a leak could be the cause.
5. Pooling Water or Damp Spots
If you find unexplained puddles of water near sinks, toilets, or appliances, it could indicate a slow leak.
6. Sounds of Running Water
Hearing water running when no faucets or appliances are in use is a strong indication of a hidden leak.
How to Locate a Hidden Leak
1. Check Your Water Meter
Turn off all water fixtures and appliances.
Note the reading on your water meter.
Wait for an hour and check if the meter has changed. If it has, you likely have a leak.
2. Inspect Common Leak Areas
Under sinks: Look for moisture, dripping water, or corrosion.
Toilets: Drop food coloring into the toilet tank. If color appears in the bowl without flushing, you have a leak.
Water heater: Check around the base for standing water.
Walls and ceilings: Look for soft spots or discoloration.
3. Use a Leak Detection Tool
Leak detection devices, such as infrared cameras or moisture meters, can help locate hidden leaks behind walls or under floors.
How to Fix a Plumbing Leak
1. Fix Leaky Faucets and Showerheads
Worn-out washers or seals are common causes of leaks. Replacing them is a simple DIY fix.
2. Replace Worn-Out Toilet Flappers
A faulty flapper in the toilet tank can waste significant water. Replacing it is inexpensive and easy.
3. Seal Pipe Joints with Plumber’s Tape
If pipe joints are leaking, using plumber’s tape or pipe sealant can stop minor drips.
4. Patch Small Pipe Leaks with Epoxy Putty
Temporary fixes like epoxy putty can stop leaks until a permanent repair is made.
5. Replace Damaged Pipes
For larger leaks or corroded pipes, replacing the damaged section is the best long-term solution.
When to Call a Professional
If you suspect a hidden leak or have a major plumbing issue, calling a licensed plumber is the best course of action. A professional can quickly identify and fix the problem before it causes extensive damage.
For homeowners in St. Catharines, Niagara Falls, Welland, Thorold, Fort Erie, Port Colborne, Grimsby, Beamsville, Lincoln, and Pelham, reliable plumbing services are essential to maintaining a leak-free home.
Conclusion
Leak detection is crucial to preventing water damage and keeping your plumbing system in top shape. By knowing the signs of a leak and taking proactive steps to fix them, you can avoid costly repairs and protect your home. If you ever need assistance, don’t hesitate to contact a professional plumber in the Niagara Region for expert leak detection and repair services.
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