Navien Specialists · Toronto & GTA

Navien Combi Boiler Installation Toronto

Navien NCB combi boiler installation and service across Toronto and the GTA — high-efficiency heat and on-demand hot water from one compact unit. Installed by a licensed gas technician and TSSA-registered contractor.

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Why Navien

Why Homeowners Choose Navien

The NCB series is one of the most installed combi boilers in Ontario — and one we work with every week.

High Efficiency

Condensing technology reaching up to 95%+ efficiency, venting through PVC. Less gas burned for the same comfort, and lower bills through the long Ontario heating season.

Strong Hot-Water Flow

The NCB line delivers robust on-demand domestic hot water, so a properly sized unit keeps up with everyday household use without a storage tank.

Compact & Well-Supported

A small wall-mounted footprint frees up floor space, and because Navien is so common here, parts and service are easy to source across the GTA.

Navien NCB

About the Navien NCB Series

The Navien NCB is a wall-mounted condensing combination boiler — it provides both your home's hydronic heating and your domestic hot water from a single appliance. For heating, it circulates hot water through radiators or in-floor loops; for hot water, it fires on demand the instant you open a tap, so there's no tank standing by and losing heat.

Its popularity in Ontario means two practical advantages for you: installers know the platform well, and replacement parts are widely stocked — both keep long-term ownership simple and affordable. Paired with correct sizing, clean near-boiler piping, and annual descaling, an NCB is a dependable, efficient heart for a modern home heating system.

Transparent Pricing

Navien Combi Boiler Costs

Fixed written quotes including the unit, applicable permits and inspections.

SystemPrice Range (Installed)
Navien NCB combi boiler installed$6,000 – $10,500
Combi conversion (remove old boiler + tank)$6,500 – $12,000
Annual maintenance & descale$180 – $350
Boiler diagnostic$150 – $250
Written quote before any work begins. All gas work TSSA-registered and with required approvals coordinated.

Free Navien Quote

We size the right NCB model for your home and hot-water demand, then give you a fixed written price.

416-316-1616
TSSA-Registered · with required approvals coordinated · Navien & Rinnai
FAQ

Navien Combi Boiler Questions

A Navien NCB combi boiler typically runs $6,000–$10,500 installed in the GTA. The price depends on the model and output, whether we're removing an old boiler and tank, and any near-boiler piping, gas, or venting changes. The quote includes the unit, labour, applicable permits and inspections, with a fixed written price before we start.
Navien's NCB series is among the most widely installed condensing combis in Ontario for good reasons: high efficiency (up to 95%+), strong domestic hot-water flow, a compact wall-mounted footprint, and excellent parts availability across the GTA. Because they're so common here, service and replacement parts are easy to source, which keeps long-term ownership simple. We install and service them constantly, so we know their quirks.
It depends on your home's heat-loss and your peak hot-water demand — how many fixtures might run at once. Navien offers several outputs in the NCB line, and choosing correctly matters: undersized and you run short on hot water, oversized and you pay more than needed. We size based on your actual fixtures and heating load, not a rule of thumb.
Yes — when sized correctly, installed to spec, and maintained annually, Navien combis are dependable workhorses. Most issues we see on older installs trace back to poor near-boiler piping or skipped maintenance (especially descaling in hard-water areas), not the unit itself. We install them properly and recommend an annual service to keep the warranty and performance intact.
Yes, once a year. Annual service includes flushing/descaling the heat exchanger, checking combustion and pressure, and inspecting the condensate and venting. In the GTA's moderately hard water, descaling matters for keeping hot-water output and efficiency up. Regular maintenance also keeps the manufacturer warranty valid.
Yes — we're based in Thornhill and install and service Navien combi boilers throughout Toronto, North York, Scarborough, Richmond Hill, Markham, Vaughan, Mississauga, Aurora, and Newmarket. Navien conversions are a frequent job for us in the area's older homes.

Considering a Navien Combi Boiler?

One call gets you proper sizing and a fixed written quote. TSSA-registered and with required approvals coordinated.

Call 416-316-1616 Request a Quote Online