No hot water, a leaking tank or a heater that is past its tenth birthday. We diagnose the problem and give you the repair or replacement price in writing before any work starts.
Water heater service covers repair and replacement of tank-style hot water heaters, both gas and electric, including power-vent units. Most tanks last 8 to 12 years, and Durham Region hard water shortens that unless sediment is flushed. Hayes Plumbing repairs electric water heaters and installs replacement tanks across Oshawa, Whitby, Ajax, Pickering and Clarington, with written quotes before any work begins.
“We had a leak in our basement due to an old water tank. Hayes plumbing had a new tank installed perfectly within 6 hours of my orinal call. Their guys were professional, friendly and worked after hours to get us up and running. I would definitely recommend this company to anyone.”
If you notice any of these, it is time to call a licensed plumber.
Call (905) 576-3043We check the tank, the controls, the venting and the water quality to find the actual problem.
Elements, thermostats and valves can be repaired. A leaking tank cannot. We explain both paths with prices in writing.
The new tank is installed to code with proper venting, relief valve and drain, and the old unit is removed.
We confirm temperature and operation and explain the maintenance that will extend its life.
Call to book a visit or a free in-home estimate.
Licensed plumbers, WSIB certified, BBB accredited and members of the Greater Oshawa Chamber of Commerce.
Free in-home estimates and the price in writing before any work starts.
Founded in Oshawa by Brian Hayes in 1961, with seven fully stocked service vehicles across Durham Region.
A real person answers emergency calls around the clock and dispatches from Oshawa.
Our article on hot water tank replacement in Oshawa places a standard 40 to 60 gallon tank at $1,200 to $3,500 installed depending on brand, venting type and fuel, a power-vent tank at $1,800 to $3,800 installed and a tankless unit at $3,000 to $6,000 installed. Our 2026 cost guide lists water heater installation at $500 to $1,500, tank or tankless, depending on the model and installation complexity. Repairs are quoted after diagnosis, and we confirm the price in writing before we start.
We are your plumber in Oshawa, and we dispatch from our shop at 448 Ritson Rd. South to:
Common questions about water heater service in Oshawa and Durham Region.
A standard tank typically lasts 8 to 12 years. Hard water and skipped flushing shorten that, and a tank that is leaking from the body needs replacement rather than repair.
Elements, thermostats, relief valves and gas controls can be repaired. If the tank itself is leaking or the unit is more than about 10 years old and needs a costly part, replacement usually makes more sense.
Not on the same visit. Under Ontario's rules for in-home sales, a business you call for a repair or maintenance can leave you information about a new water heater, but cannot sign a contract for one on that visit. If you want a replacement, call us to book it: we quote it in writing and schedule the installation with you.
About $1,200 to $3,500 installed for a standard tank and $1,800 to $3,800 for a power-vent unit, per our 2026 hot water tank replacement guide.
Yes. See our tankless water heater page for sizing, venting and cost details.
Not a gas one. Ontario law requires gas work, including connecting a gas water heater, to be done by a TSSA-registered contractor using TSSA-certified gas technicians. An electric tank still involves the water connections, the temperature and pressure relief valve and its discharge line, and the electrical connection, so check with your municipality's building department about permits first. If your tank is a rental, the rental company owns it: check your agreement before replacing it.
If your morning showers have turned cold or your hot water tank is showing its age, you may be researching hot water tank replacement cost in Oshawa. Replacing a hot water tank is one of the most common plumbing projects for Durham Region homeowners, and understanding pricing, warning signs, and your options will help you
Step-by-step instructions for flushing a water heater, plus when Oshawa homeowners should call Hayes Plumbing instead of DIY.
Why closed plumbing systems in Oshawa need a water heater expansion tank, warning signs it’s missing, and what a proper install involves.
Call (905) 576-3043 for friendly service from Oshawa's plumbers since 1961.
