Most Toronto homeowners don't think about their water service line until something goes obviously wrong — a flooded yard, a water bill that doubles overnight, or no water pressure at all. By then, the damage is usually worse and the repair more expensive than it needed to be.
Here are the seven warning signs worth paying attention to before things get that far.
1. Consistently Low Water Pressure
If the pressure throughout your home has dropped over time — not just in one fixture — and you've ruled out a municipal main issue, the water service line is a likely suspect. A partially blocked or corroded line restricts flow before water even reaches your interior plumbing.
2. Discoloured or Rusty Water
Brown, orange, or reddish water — especially when you first run a tap after it's been sitting — suggests corrosion inside the pipe. This is common in older galvanized steel and lead lines, and it's worth treating as a health concern, not just an aesthetic one.
3. Unexplained Wet Patches in the Yard
A soft, perpetually wet spot in the lawn — particularly in a straight line from the street to your house — is a classic sign of an underground leak. The water is escaping through a crack or failed joint and saturating the surrounding soil.
4. A Sudden Spike in Your Water Bill
If your usage habits haven't changed but your water bill has jumped, you're probably losing water somewhere underground. Toronto Water bills by consumption — a leak that runs continuously adds up fast.
5. Visible Corrosion or Staining Near the Water Meter
Check where the service line enters your home. If you see green or white mineral deposits on the pipe, or rust staining on the floor nearby, the pipe is corroding from the outside in or showing stress at the connection point.
6. Frequent Leaks at Different Points
One leak can be bad luck. Multiple leaks appearing at different locations over a few years means the pipe itself is in general decline — spot repairs are buying time, not solving the underlying problem.
7. Your Home Was Built Before 1960
This one isn't a symptom — it's a risk factor. Lead service lines were the standard in Toronto from the late 1800s through approximately 1955. Galvanized steel and early copper ran through the 1960s. If your home predates 1960 and you don't know what your service line is made of, it's worth finding out.
A camera inspection takes less than an hour and answers the question definitively. Call Toronto Water Line Replacement to schedule one.