Electric On-Demand Water Heater Installation in Kitchener-Waterloo | Power KW

Looking to upgrade to an electric on-demand water heater in Kitchener, Waterloo, Guelph, or Cambridge? Power KW's Master Electrician installs tankless electric water heaters for homeowners who want endless hot water, lower energy bills, and a space-saving unit. Here's everything you need to know.

What Is an Electric On-Demand Water Heater?

An electric on-demand water heater (also called a tankless or instantaneous water heater) heats water directly as it flows through the unit — with no storage tank. Instead of keeping 40–60 gallons of water hot 24/7, it only uses energy when you actually turn on the tap. The result is virtually unlimited hot water on demand, and significantly reduced standby energy losses.

Benefits of a Tankless Electric Water Heater

• Endless hot water — no more running out mid-shower

• Energy savings — only heats water when you need it

• Space savings — compact wall-mounted unit frees up valuable floor space

• Longer lifespan — tankless units typically last 20+ years vs. 10–12 years for tank heaters

• No risk of tank leaks or flooding

What Electrical Work Is Required?

Electric tankless water heaters are high-draw appliances — whole-home units typically require 150–200 amp dedicated circuits. Most Ontario homes will need a panel assessment and potentially a service upgrade before installation. Point-of-use units (for a single sink or bathroom) require a smaller 30–50 amp circuit and are often a simpler retrofit. Power KW handles the full electrical scope: panel assessment, circuit installation, ESA permit and inspection, and final connection of the unit.

Why Hire a Licensed Master Electrician for This Job?

In Ontario, all new circuits and electrical connections must be installed by a licensed electrical contractor and inspected by the ESA. Improper wiring of a high-amperage appliance like a tankless water heater is a fire and safety risk. Jordan Hale is a Master Electrician (ESA Licence #7015811) with 14+ years of experience — the highest licence level in Ontario. Power KW pulls all required permits and ensures your installation passes ESA inspection.

Serving Kitchener, Waterloo, Guelph & Cambridge

Power KW provides electric on-demand water heater installation across the Kitchener-Waterloo Region and surrounding areas. Whether you're in a condo in Waterloo, a single-family home in Guelph, or a rental property in Cambridge — we've got you covered. Call or text 519-573-9889 or fill out our online quote form to get a free estimate.