Water Heater Repair & Tankless Installation in Toronto & GTA — Same-Day Service
A cold shower at 6 AM in a Toronto January is not a minor inconvenience — it's an emergency. We diagnose water heater failures fast, repair what can be saved, and install new tank or tankless systems same-day when replacement is the smarter call.
Get Same-Day Hot Water ServiceTank vs. Tankless — Which Is Right for Your Home?
Standard Hot Water Tank
- Lower upfront installation cost ($800–$1,400 installed)
- Simple repair, widely available parts
- Works well for 1–2 person households with predictable demand
- Keeps a tank of hot water heated around the clock (standby heat loss)
- Typical lifespan: 10–12 years in Toronto's hard water
- Good choice when budget is the primary consideration
High-Efficiency Tankless System
- Higher upfront cost ($2,000–$3,500 installed), lower operating cost
- Heats water on demand — never runs out, even with multiple showers running
- Up to 30–40% more energy-efficient than a standard tank
- Compact wall-mounted unit frees up floor space
- Typical lifespan: 20+ years with annual descaling maintenance
- Ideal for families of 3 or more, and homes with high peak demand
Our Full Range of Water Heater Services
Emergency Repair — Same Day
No hot water, water pooling around your tank, or a pilot light that won't stay lit? We diagnose fast and carry common replacement parts on every truck — thermocouples, pressure relief valves, heating elements, ignitors — for same-visit repairs on most makes and models.
New Tank Installation
We right-size the replacement unit to your household's actual hot water demand — not just the closest unit on the truck. We remove and dispose of your old tank, install the new one to code, and commission it before we leave. Full TSSA-compliant installation documentation provided.
Tankless System Installation
Navien, Rinnai, Rheem, Bradford White — we install and commission all major tankless brands. This includes gas line sizing, venting configuration, condensate management, and flow-rate calibration for your home's fixture count. We explain optimal settings before leaving. Read our full tankless maintenance guide →
Calcium Descaling & Flush
Toronto's hard water builds calcium scale inside tank elements and tankless heat exchangers, choking efficiency and cutting lifespan short. Our annual flush service circulates descaling solution through the system to dissolve scale and restore full heating capacity — highly recommended every 12–18 months.
Anode Rod Replacement
The sacrificial anode rod inside your tank protects the steel lining from corrosion. When it's depleted, the tank itself starts rusting from the inside — leading to brown water and eventual failure. We inspect and replace anode rods as part of our maintenance service to extend tank life by years.
Expansion Tank Installation
Ontario building code requires an expansion tank on closed-loop plumbing systems. Without one, pressure spikes from the water heater can damage your plumbing fixtures and tank components. If your home doesn't have one, we identify this during our assessment and install it correctly.
Hot Water Tank Repair in Toronto
Most tank problems come down to a short list of causes. Knowing the symptom helps you tell us what is going on when you call.
- No hot water at all: on a gas tank, the pilot or igniter has gone out, the thermocouple or flame sensor has failed, or the gas valve is faulty. On an electric tank, it is usually a tripped breaker, a failed element or a failed thermostat.
- Hot water runs out quickly: sediment has built up in the bottom of the tank, the dip tube has broken, or on an electric tank the lower element has failed.
- Rumbling or popping sounds: sediment on the bottom of the tank. A flush can help if the tank is not too old.
- Rusty or rotten-egg smelling hot water: the anode rod is used up. Replacing it can add years to a tank that is otherwise sound.
- Water around the base: check the relief valve pipe and the fittings on top first. If the tank itself is leaking from the bottom, it cannot be repaired and has to be replaced.
Hot Water Tank Replacement: Repair or Replace?
A tank water heater in Toronto usually lasts 8 to 12 years. As a rule of thumb, a part failure on a tank under about 8 years old (pilot assembly, thermocouple, element, thermostat, anode rod or relief valve) is worth repairing. Replacement makes more sense when the tank itself leaks, when it is past 10 to 12 years and needs a major part, or when it no longer keeps up with your household. A replacement includes removing and disposing of the old tank, new connections and a shut-off valve, and venting checked to code. Read signs your water heater needs replacing and how long a water heater lasts.
Tankless Water Heater Repair in Toronto
- Error code on the display: write it down before you call. It tells us whether to look at ignition, venting, water flow or the condensate drain.
- Hot water turns cold mid-shower: often a blocked condensate drain, a dirty inlet filter or a heat exchanger scaled up by Toronto's moderately hard water. It also happens when a tap is opened so little that the unit cannot fire.
- Lukewarm water or slow to heat: scale in the heat exchanger. A descale usually fixes it.
- Unit will not fire at all: the gas supply, igniter or flame sensor, or a blocked intake or exhaust vent, which in winter is often snow or ice.
We repair Navien, Rinnai, Noritz, Rheem, Bradford White and A.O. Smith tankless units. Yearly service prevents most of these calls; see our tankless water heater maintenance guide.
Why Toronto Homeowners Call ED Plumbing for Water Heaters
- TSSA-certified for natural gas appliance work in Ontario
- We right-size units — no overselling unnecessary capacity
- Same-day emergency service for water heater failures
- Transparent flat-rate quotes before any work begins
- Experienced with all major brands including Rheem, Bradford White, Navien, Rinnai
- Full permit and code documentation provided on request
- Annual maintenance reminders — we keep your system running longer
How Our Water Heater Service Works
Diagnose the Problem
We test the unit thoroughly — element, thermostat, anode, gas valve, venting — to identify the exact failure point.
Repair or Replace Quote
We tell you honestly whether repair or replacement is the better financial decision, then give you a firm price for both options.
Same-Day Installation
We carry common tank sizes and parts on our trucks. Most repairs and new installs are completed in the same visit.
Commission & Explain
We test hot water flow at every fixture, walk you through the new unit's controls, and document the install for your records.
Frequently Asked Questions
Request a Free Estimate
Licensed plumbers available 24/7. We respond to every request within 45 minutes.
- No hidden fees — written quote before we start
- Licensed & insured master plumbers
- 45-minute emergency response across the GTA
Get a Free Estimate
We will reach out within 15-30 minutes to confirm dispatch.
Emergency? Call (437) 260-6342
No Hot Water? We'll Have It Back Today.
Same-day water heater repair and replacement across the GTA. Call now — our dispatcher picks up immediately.
Call (437) 260-6342 — 24/7