Combi Boiler Installation & Replacement in Greater Vancouver
Heat and endless hot water from one compact, high-efficiency unit. We size, install and warranty combi boilers across Metro Vancouver — and convert aging boiler-and-tank setups to modern condensing combis.
A combi (combination) boiler heats your home and produces domestic hot water on demand from a single wall-hung unit — no separate hot water tank. Because it only heats water when you use it, a modern condensing combi is one of the most space- and energy-efficient ways to heat a Greater Vancouver home, condo or townhouse.
Install, Replace or Convert — We Handle All Three
Every job starts with proper sizing and ends with a permitted, code-compliant installation by licensed gas fitters — backed by our workmanship warranty.
New Combi Installation
First-time combi for a new space, renovation or suite. We size the unit to your heat loss and hot-water demand, run proper venting and condensate, and commission it to manufacturer spec.
Boiler installation serviceCombi Replacement
Swapping a tired or failed combi for a current high-efficiency model. Often completed in a single day, with old-unit disposal and a full system flush included in the plan.
Boiler replacement serviceTank-to-Combi Conversion
Retire the conventional boiler and storage tank. We re-pipe heating and hot water, reclaim the tank closet, and cut standby losses — the most popular upgrade in older Vancouver homes.
Talk to us about convertingSizing: Where Combi Jobs Go Right or Wrong
A combi must satisfy two different loads at once. Heating output is matched to your home's heat loss; hot-water output is rated as a flow rate — how many litres per minute the unit can raise to shower temperature. Vancouver's cold winter mains water lowers real-world flow, so a unit that looks fine on paper can disappoint in January.
- Heat-loss calculation for the heating side — never a guess from the old boiler’s label
- Hot-water flow sized to your bathrooms and habits, at winter mains temperatures
- Honest advice when a system boiler + indirect tank fits your household better
Venting, Condensate & Code
Condensing combis vent cool, acidic exhaust through sealed plastic venting and produce condensate that must drain correctly — details that decide whether a boiler runs reliably for 15 years or fails early. In BC this is licensed gas-fitter work with a permit, and that's exactly how we do it.
- Sealed two-pipe or concentric venting routed and terminated to code
- Properly trapped, freeze-protected condensate drainage
- Gas-line sizing checked — many combis need more gas than the boiler they replace
- Permits pulled and the unit commissioned to the manufacturer’s spec, protecting your warranty
Not sure a combi is right for you? Compare all boiler types and models we install — or ask us during your free estimate. We'll also flag whether your chosen model qualifies for current utility rebate programs.
Combi & Condensing Brands We Install
Genuine manufacturer parts, supplied and installed by licensed technicians — never sold for DIY.
Brand Hubs: Service, Error Codes & Emergency Help
Deep guides for the combi brands Vancouver homes rely on.
Already Own a Combi That's Acting Up?
No hot water, leaking water or a fault code on the display? We repair every combi brand across Greater Vancouver — same-day, with priority after-hours emergency response when you're without heat or hot water.
Browse All Boiler Problems We FixOur Guarantees & Warranties
Every repair and installation is backed by genuine parts, licensed workmanship, and a promise to make it right.
Workmanship Guarantee
Every repair and installation is backed by our written workmanship guarantee. If a part we installed fails because of our work, we make it right.
Genuine OEM Parts
We fit only manufacturer-original (OEM) components so your boiler performs to spec and keeps its factory warranty intact.
Manufacturer Warranty Honoured
As an authorised service provider for the brands we work on, our installs preserve and register your manufacturer parts warranty.
Licensed & Insured
All work is completed by Technical Safety BC–licensed gas fitters. We are fully licensed, bonded and insured for your protection.
Up-Front Pricing
You approve the diagnosis and quote before any work begins. No hidden fees and no surprise charges.
Satisfaction Commitment
Backed by the full HVAC resources of CanroHeat.ca and four decades of service in Greater Vancouver since 1985.
Combi Boiler Installation Across Metro Vancouver
Local crews, local permits, local knowledge — from downtown condos to Fraser Valley acreages.
Frequently Asked Questions
Get Your Combi Boiler Estimate Today
Free in-home assessment, honest sizing, written quote up front — and warranty-backed installation by licensed gas fitters.
A Division of CanroHeat.ca · Licensed Gas Fitters · Serving Greater Vancouver since 1985