Plumber in Keswick

Keswick was cottage country until the late 1980s and was built mainly as a cottage community, before major development opened it up, including the Simcoe Landing subdivision, still growing in 2017. Across the Town of Georgina, a fifth of homes were built before 1961 and a third between 1981 and 2000. Keswick has municipal water and sewer: Lake Simcoe water treated at York Region's Keswick plant, at 150 mg/L of hardness, which York Region rates as hard. The town sits between the Holland Marsh and Lake Simcoe, and high water is a real risk: in April 2026 the lake stood about 30 cm above average, the Town handed out sandbags, and the Keswick polder dike was at high risk of overtopping.