Leaking heat exchanger
Water inside the cabinet or corrosion on the exchanger usually means the core is failing.
Replacing a tankless unit
Tankless Water Heater Replacement Without Surprises
When a heat exchanger leaks or error codes keep coming back, it may be time for a new unit. We check what can be reused and replace it cleanly.
- Repair versus replace advice
- Existing venting assessed
- Old unit removed
No heat, no hot water or a gas smell? Call any time, day or night.
GAS WATER HEATER · Schematic
- 24/7 emergency service
- Tri-Cities, Burnaby, Surrey, Pitt Meadows, Maple Ridge
- Clear quote before work starts
- Tidy, respectful work
- Furnaces and boilers
- Air conditioning
- Heat pumps
- Water heaters
- Book online in about a minute
Overview
When tankless water heater replacement makes sense
Many on-demand units installed in the late 2000s and early 2010s are now reaching the age where repairs become frequent. Tankless water heater replacement is usually the better choice when the heat exchanger is leaking or corroded, when parts are discontinued, or when repair costs approach a significant share of a new unit. A unit that keeps showing ignition or flame-failure codes after service is another common reason.
Replacing an existing tankless is often simpler than a first-time install because the gas line and venting are already in place. That does not mean everything can be reused. Older non-condensing units used stainless vent pipe that a new condensing model does not need, and vent materials are specific to each manufacturer. We check the gas pipe size, vent condition and isolation valves so the new unit performs as it should.
Signs it is time to replace
Repair is often possible, but these point toward replacement.
Recurring error codes
Ignition and flame errors that return after cleaning point to worn components.
Fluctuating temperature
Hot-cold swings that persist after flushing can mean failing sensors or a scaled exchanger.
Unit nearing two decades
Aging units become harder to source parts for and less efficient than modern models.
Loud fan or burner
Rough combustion noise or a failing combustion fan can signal deeper wear.
Repairs adding up
Several costly repairs in a short period make a new unit better value.
Included
What we check before quoting a replacement
- Model, age and failure history of the current unit
- Gas pipe size and pressure at full fire
- Vent material and compatibility with the new model
- Condensate drain and neutralizer condition
- Isolation valves and pressure relief valve
- Recirculation setup and whether it still makes sense
- Whether your hot water needs have changed
How it works
Replacement made straightforward
- 1
Diagnose honestly
We confirm the fault and tell you if a repair is still a reasonable option.
- 2
Match the new unit
We select a model that fits your demand and works with existing services where possible.
- 3
Swap and update
The old unit is removed and the new one installed with any required vent or valve updates.
- 4
Test and hand over
Full-flow testing, temperature setting and a walkthrough of maintenance needs.
Why replace with Able Pro
Repair advice first
We will not push replacement if a reasonable repair will keep your unit going.
Most brands handled
We remove and replace a wide range of tankless makes and models.
No hot water? Call any time
Technicians are on call 24/7 when your water heater quits completely.
Clean finish
The old unit leaves with us and the work area is cleaned.
Near you
Tankless Water Heater Replacement in your city
Questions homeowners ask us
Still unsure? Call (236) 222-2222 and talk it through with us.
Can I replace my tankless with a tank instead?
Yes. Some owners go back to a tank for simplicity or because of power outage concerns. A tank needs floor space and different venting, which we would assess.
Will my new tankless unit use the same vent?
Sometimes, but not always. Vent systems are often specific to a manufacturer and model, and switching from non-condensing to condensing changes the vent material. We confirm compatibility before quoting.
How long do tankless water heaters last?
Well-maintained units often run fifteen to twenty years. Units that were never flushed or that were undersized and overworked can fail sooner.
Is it worth fixing a leaking heat exchanger?
Replacing the heat exchanger alone is possible on some models, but the part is a large portion of the unit's value. On an older unit, replacing the whole heater is usually the better decision.
Can I upgrade to a larger unit during replacement?
Yes, if the gas supply and venting support it. If your household has grown or you added a bathroom, this is a good time to resize.
Book your visit
Ready for a dependable new unit?
Call (236) 222-2222 or book online for a tankless water heater replacement assessment.
Call or text, 24/7 for emergencies(236) 222-2222Request a visitTakes about a minute
We only use your details to arrange your visit.
Request received
Thanks! We will call you to confirm a time. Need us sooner? Call (236) 222-2222.