Boiler & Tankless Water Heater Service in Whitby & Durham Region

Durham Boilers & Tankless Hot Water Heaters

Whether you're dealing with a boiler that's lost pressure, a tankless water heater that's stopped keeping up, or you're ready to upgrade an old tank system, Walchuk Heating & Cooling installs, repairs, and maintains both across Whitby and Durham Region, with two Whitby locations and licensed, insured technicians.



Boiler Repair & Installation

The problem:

Uneven heat across your home, strange noises, leaks around the unit, or a pilot light that won't stay lit are the most common signs a boiler needs attention, and left alone they tend to get worse, not better, especially heading into winter.

The fix:

We diagnose and repair existing boiler systems, and install new high-efficiency units for homes that use hydronic (hot water) heating instead of forced air. Every installation is backed by our one-year workmanship guarantee and 100% satisfaction guarantee, and our technicians are licensed (TSSA #000229172, HRAI #114449) and fully insured (WSIB #5318422).

Tankless Water Heater Repair & Installation

The problem:

Running short on hot water, a unit that's cycling on and off, error codes on the display, or an aging tank system that's costing more to run every year are the usual reasons homeowners call us about tankless water heaters.

The fix:

We install and service tankless systems, which heat water on demand instead of storing and reheating a tank, giving you a steady hot water supply and typically lower standby energy costs than a conventional tank. We repair existing tankless units and help homeowners weigh whether upgrading from an aging tank system makes sense for their household.

Which Is Right for Your Home?

Boilers and tankless water heaters solve different problems: a boiler heats your home, a tankless unit heats your water, and plenty of homes in Durham Region have one, the other, or both. If you're not sure what your home currently has or what makes sense to upgrade, our technicians can walk through your options as part of a free in-home estimate.

Maintenance

Regular maintenance extends the life of both systems and catches small problems before they become a mid-winter emergency call. Ask about our maintenance plans when you book a service visit.

Financing

We offer lease-to-own financing on new boiler and tankless water heater installations. See our lease-to-own breakdown for how it works.

Frequently Asked Questions

What's the difference between a boiler and a furnace?

A furnace heats and distributes warm air through ductwork. A boiler heats water and circulates it through radiators, baseboard heaters, or an in-floor radiant system. Homes across Durham Region use both, and which one you have usually comes down to how your home was originally built.

Is a tankless water heater worth it for a Durham Region home?

For most households, yes. A tankless system heats water on demand instead of continuously keeping a tank hot, which typically lowers standby energy use and means you won't run out of hot water mid-shower. The main trade-off is a higher upfront equipment and installation cost than a standard tank, which is worth weighing against your household's actual hot water use.

How long do tankless water heaters last compared to a tank system?

Tankless systems are generally built to last longer than a standard storage tank water heater, though the real lifespan depends on your home's water quality, usage, and how consistently the unit is maintained. Our technicians can give you a realistic estimate based on your specific home.

Do boilers need regular maintenance?

Yes. Annual maintenance, including checking system pressure, bleeding radiators, and inspecting for leaks or corrosion, catches small problems before they turn into a mid-winter breakdown, and is one of the simplest ways to extend a boiler's life.

Can a tankless water heater be installed in an older Durham Region home?

In most cases, yes, though your home's existing gas line and venting may need to be assessed or upgraded to support a tankless unit. A technician can confirm exactly what your home needs during an in-home estimate.

Is Walchuk Heating & Cooling licensed to install and repair boilers and tankless water heaters?

Yes. Walchuk Heating & Cooling is TSSA licensed (#000229172), HRAI registered (#114449), and WSIB insured (#5318422), and has served Durham Region homeowners for close to 15 years.

How much does it cost to install a boiler or tankless water heater in Ontario?

It depends on your home's current setup, the equipment you choose, and whether any gas line or venting work is needed, so there isn't one number that applies to every home. The most accurate way to get a real figure is a free in-home estimate.

Does Walchuk service boilers and tankless water heaters outside Whitby?

Yes. We service Whitby, Oshawa, Ajax, Courtice, Bowmanville, Port Perry, and Port Hope, with two Whitby locations for faster response across Durham Region.

Boiler & Tankless Water Heater Service Across Durham Region

We serve homeowners in Whitby, Oshawa, Ajax, Courtice, Bowmanville, Port Perry, and Port Hope, with two Whitby locations for faster response across the region.

Why Durham Region Homeowners Choose Walchuk

4.8 stars across 136 Google reviews and 5.0 stars across 30 HomeStars reviews, close to 15 years in business, and a one-year workmanship guarantee on every job. Read what your neighbours are saying in our customer testimonials.

Call 905-622-5435 or contact us for boiler or tankless water heater service in Whitby and Durham Region.