Boiler Specialists · Toronto & GTA

Boiler Installation Toronto & GTA

High-efficiency gas boiler installation and replacement across Toronto and the GTA — combi, condensing, and conventional systems. Installed by a licensed gas technician and TSSA registered contractor. Free written quotes.

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Boiler Services

What We Install

From space-saving combi units to dedicated condensing boilers for radiant heat — sized and installed properly, with honest advice on what your home actually needs.

Combi Boilers

One wall-mounted unit for both heating and on-demand hot water — no separate tank needed. Navien and Rinnai condensing models reaching 95%+ efficiency. Ideal for space-tight Toronto homes and townhouses.

High-Efficiency Condensing Boilers

For homes with radiators or in-floor hydronic heating. Condensing units vent through PVC and recover heat that older atmospheric boilers send up the chimney — meaningfully lower gas bills.

Boiler Replacement & Conversions

We swap aging cast-iron and atmospheric boilers for modern high-efficiency units, redo the near-boiler piping to code, and update venting and controls. Honest advice on the right size — not the biggest upsell.

Warning Signs

Signs You Need a New Boiler

A failing boiler wastes gas every month and tends to quit on the coldest night. Know when to plan ahead.

Transparent Pricing

Boiler Installation Costs

Fixed-price written quotes before work begins. Equipment, permit, and TSSA inspection included.

SystemPrice Range (Installed)
Combi boiler installed$6,000 – $11,000
High-efficiency condensing boiler$7,000 – $13,000
Conventional / system boiler replacement$5,500 – $9,500
Boiler diagnostic & repair$150 – $1,500
Written quote before any work begins. All gas work TSSA-licensed and fully permitted. Near-boiler piping and venting changes included where required.

Free On-Site Boiler Quote

We assess your system, sizing, and venting in person, then give you a fixed written price — no pressure, no surprises.

416-827-8676
TSSA-Licensed · Fully Permitted · Navien & Rinnai
Equipment

Boiler Brands We Install

We install and service all major boiler brands and match the unit to your home, heating system, and budget.

Navien

The NCB series is among the most popular condensing combi boilers in Ontario — high efficiency, compact, and strong hot-water output. A reliable workhorse we install and service constantly across the GTA.

Rinnai

Rinnai combi boilers are known for durable stainless-steel heat exchangers and steady performance. A strong choice for homeowners who want long service life and dependable hot water.

Viessmann, IBC & NTI

For dedicated hydronic and radiant systems, these premium boilers offer excellent modulation and efficiency. We match the unit to your heating design and tell you when the upgrade is worth it.

FAQ

Boiler Installation Questions

A new high-efficiency boiler in the GTA typically runs $5,500–$13,000 installed, depending on type and size. A combi boiler (heat plus hot water) usually lands in the $6,000–$11,000 range, while a dedicated condensing boiler for a radiator or in-floor system runs higher. The price includes equipment, near-boiler piping redone to code, venting, the gas permit, and TSSA inspection. You get a fixed written quote on-site before any work starts.
A combi (combination) boiler heats your home and makes domestic hot water on demand from a single wall-mounted unit, so there's no separate tank. A conventional or system boiler handles space heating only and pairs with a hot-water tank. Combis save space and suit Toronto's smaller homes and townhouses, while conventional boilers can make sense for larger homes with high simultaneous hot-water demand. We recommend the right type after seeing your home and heating setup.
A straightforward boiler replacement usually takes one full day. If we're re-piping the near-boiler connections, upgrading venting, or converting from an old atmospheric system to a modern condensing unit, it can run one to two days. We confirm the exact timeline when we quote, and in winter we never leave you without heat overnight without telling you first.
Yes. Any gas boiler installation or replacement in Ontario requires a gas permit and TSSA inspection. We handle the permit application and arrange the inspection — it's part of your quote, not something you chase yourself. Never hire anyone who skips permits on gas work: it voids your home insurance and creates serious liability if something goes wrong.
A well-maintained boiler typically lasts 15–25 years, often longer than a forced-air furnace. Annual servicing — checking pressure, flushing, and inspecting the heat exchanger and combustion — is the single biggest factor in lifespan. If yours is past 15 years and needing repeated repairs, leaking, or kettling (banging from scale buildup), it's usually smart to plan a replacement before it fails mid-winter.
Yes — our office is in Thornhill and we install and service boilers across the entire GTA, including Toronto, North York, Scarborough, Richmond Hill, Markham, Vaughan, Mississauga, Brampton, Etobicoke, Ajax, Pickering, Aurora, and Newmarket. Many older homes in these areas run on hot-water boiler and radiator systems — work we do every week.

Ready for a New Boiler?

One call gets you an on-site assessment and a fixed written quote. TSSA-licensed, fully permitted, all major brands.

Call 416-827-8676 Request a Quote Online