Anta Plumbing

06/03/2026

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02/16/2026

Why Is My Water Bill Higher This Winter? Hidden Plumbing Causes

Many homeowners across Ontario — including Toronto, Barrie, and Orillia — are surprised by higher water bills during the winter months. While increased indoor water use plays a role, hidden plumbing issues are often the real cause.

One of the most common problems is a silent toilet leak. A worn flapper can allow water to continuously flow into the bowl without noticeable sound. Over weeks, this can waste hundreds of litres. Another frequent issue is small pipe leaks in basements or crawl spaces, especially after temperature drops. Even a slow drip can significantly increase monthly costs.

Winter appliances also contribute. Humidifiers, which are essential during Ontario’s dry heating season, run more frequently and use more water than many homeowners realize. Additionally, sump pumps connected to municipal systems may cycle more often due to fluctuating groundwater levels.

A simple test can help: turn off all fixtures and check your water meter. If it continues moving, you likely have a leak.

Addressing small problems early prevents costly repairs later. A professional inspection ensures your system is efficient, safe, and ready for the rest of winter.