Installing or replacing a Navien NCB-H combi boiler in Metro Vancouver runs a wide range, and venting, gas line work, and access are why.
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Quick answer
Installing a Navien NCB-H combi boiler as a new-condition project in Metro Vancouver generally runs $6,500 to $14,000 or more, while replacing an existing boiler with one runs $7,500 to $15,000 or more, both 2026 public-market ballparks and not a quote. Where a specific job lands in that range depends mainly on venting complexity, gas line sizing, condensate drainage, access to the mechanical room, and whether the local permit process turns up code upgrades that weren't part of the original plan.
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A combi boiler installation is not just mounting a box on the wall. It's a coordinated gas fitting and mechanical job: running or resizing the gas line to the unit, installing intake and exhaust venting to the appropriate termination point, plumbing both the heating loop and the domestic hot water side into the unit, setting up condensate drainage since the unit is condensing, and commissioning the system so it's actually operating correctly, not just powered on. Every one of those steps is inspected work under BC's gas and plumbing codes.
CANRO holds gas licence LGA0043870 and boiler licence LBP0046450, and this kind of installation has to be done by a Technical Safety BC licensed gas fitter regardless of who you hire. We're not a Navien-authorized or factory dealer; we install and service combi boilers as a licensed BC contractor.
| Factor | Why it matters |
|---|---|
| Venting run length and termination point | Longer runs, more elbows, or a termination that needs to clear a window, soffit, or property line adds material and labour |
| Gas line sizing | An undersized existing line may need upsizing to supply the combi boiler's full demand alongside other gas appliances |
| Condensate drainage | Gravity drainage to an existing drain is simpler than needing a condensate pump routed to one |
| Mechanical room access | A tight basement, crawlspace, or awkward stairwell access adds labour time |
| Code upgrades found during permit inspection | Older homes sometimes need updates elsewhere in the system to pass inspection, which is a real cost even though it isn't about the boiler itself |
| Replacing versus new install | Removing and disposing of an old unit, and adapting existing piping and venting, is its own scope of work |
A genuinely new install, meaning there wasn't a boiler in that location before, generally runs $6,500 to $14,000 or more depending on the factors above. Replacing an existing boiler with a new combi boiler generally runs $7,500 to $15,000 or more, and it's often the higher end of that when the old system used different venting or piping that needs to be adapted rather than reused as-is. These are 2026 public-market ballparks, not a quote, and CANRO's certified technicians confirm exact pricing after a short in-person assessment of your specific mechanical room.
The gap between a straightforward swap and a more involved replacement usually comes down to whether the existing venting can be reused. A combi boiler vents differently than an older atmospheric or even some older high-efficiency boilers, so a replacement sometimes means a genuinely new venting run even though a boiler already existed there.
Every municipality in Metro Vancouver requires a gas and, depending on scope, a plumbing permit for a boiler installation, and inspection is not optional or something a homeowner can skip to save time. Permit fees themselves are a modest part of the overall project, generally in the $75 to $200 range across most municipalities in this market, but the value of the permit is really the inspection: it's a second set of eyes confirming the gas line, venting, and condensate work was actually done to code, which matters for both safety and for insurance and resale down the line.
CANRO pulls permits as part of the installation process rather than treating it as an add-on, and handles the inspection scheduling so the homeowner isn't left coordinating between contractor and municipality.
Not every service call should end in a replacement conversation, and we'd rather tell a homeowner honestly when repair is the better call. A typical boiler repair runs $250 to $1,800, with most jobs landing between $400 and $900, well below full installation cost, so an isolated component failure on a unit that's otherwise in reasonable shape is usually worth repairing rather than replacing. Replacement becomes the more sensible conversation when the unit is old enough that repairs are becoming frequent, when a needed part is genuinely hard to source, or when the existing venting or gas line is already failing code and would need updating regardless of whether you repair or replace.
A straightforward scenario looks like this: an older character home in an area with soft reservoir water, replacing a boiler that already vented through a similar path, with a mechanical room that's reasonably accessible. That project tends to sit toward the lower to middle of the replacement range, since venting and gas line work are largely reused rather than rebuilt from scratch.
A more involved scenario looks like this: a home on a hillside lot with a mechanical room down a long stairwell or through a crawlspace, an older gas line that's undersized for a combi boiler plus other existing appliances, and venting that has to be rerouted because the old boiler used a chimney rather than a sidewall termination. That combination of access, gas line upsizing, and new venting design tends to land toward the higher end of the range, and sometimes above it once code upgrades found during inspection are factored in. Neither scenario is described with a specific invoice number here, because the only accurate number comes from a technician actually looking at your mechanical room.
Safety note
Installation of gas lines, venting, and combustion equipment must be done by a Technical Safety BC licensed gas fitter and inspected under permit; CANRO holds gas licence LGA0043870 and boiler licence LBP0046450. If you ever smell gas or suspect a leak on an existing system, leave the home and call FortisBC at 1-800-663-9911 from a safe location.
It depends on whether the old venting and gas line can be reused. When a replacement needs new venting because the old boiler used a different type, the labour and material cost can exceed a straightforward new install.
For a replacement project, removal and responsible disposal of the old unit is part of the scope. Confirm it's included in any written quote you receive.
It varies by access and venting complexity rather than a fixed number of hours, which is exactly why an in-person assessment matters more than a phone estimate.
FortisBC and CleanBC programs exist and change over time, so confirm current eligibility directly rather than relying on outdated information. We don't quote rebate amounts since they're set by those programs, not by CANRO.
No. Gas line work, venting, and combustion equipment installation all require a Technical Safety BC licensed gas fitter, and mixing licensed and unlicensed work on the same system creates real safety and inspection problems.
A technician reviews your mechanical room, existing gas line and venting, access, and what code requirements apply to your specific home before giving you a number, rather than quoting sight unseen.
Family-run, TSBC-licensed (gas LGA0043870 · boiler LBP0046450), serving Metro Vancouver homes since 1999. Residential, natural gas only.
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