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For more than 150 years GSW has provided innovative products to Canadian homes, a claim few water heater brands can make. We continue to evolve and strive to provide the safest, most reliable and energy efficient water heaters available.

Hours of Operation

Technical Support
Monday to Friday 8:00 am to 5:00 pm EST

Warranty Validations
Monday to Sunday 8:00 am to 5:00 pm EST

Customer Service
Monday to Friday 7:00 am to 5:00 pm EST

Our Location

GSW Water Heaters
599 Hill Street West
Fergus, Ontario, Canada N1M 2X1
T 1.888.479.8324
F 519.787.5500

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Please contact us as we need to ask you some additional questions in order to make sure your water heater is properly sized for your needs.

GSW builds its water heaters to be safe, energy efficient and reliable.

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Hours of Operation

Our Location

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Gas

High-Efficiency Gas

Tankless

Electric