Installing a gas water heater where none currently exists usually costs more in Renfrew than swapping an existing tank one-for-one.
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Quick answer
Gas water heater installation in Renfrew runs $1,800 to $3,200 for a like-for-like tank swap, and $2,500 to $4,500 when new gas line or venting is required. This is a 2026 public-market ballpark, not a quote — CANRO prices the actual job on-site.
Need a licensed gas fitter for your gas tank water heater? Call CANRO at (604) 359-1081 — residential natural-gas heating and hot water across Metro Vancouver since 1999.
The large majority of installation calls in Renfrew are replacing a tank that's already connected to an existing gas line and vent, which keeps the job simpler and closer to the lower end of the range. A genuinely new installation — no existing gas water heater connection to work from — typically comes up when a basement suite or laneway home is being added, since those need their own dedicated hot water source separate from the main house.
Laneway construction has picked up across Renfrew in recent years, and each laneway home generally needs its own water heater installation with a new gas line run, which is a meaningfully bigger job than reconnecting to existing infrastructure.
| Job type | Installed cost |
|---|---|
| Like-for-like tank swap, existing gas line and vent | $1,800–$3,200 |
| New gas line, new venting, or first-time install | $2,500–$4,500 |
A Vancouver gas permit applies on top of either figure and is pulled by the installer as part of the job.
A 40-gallon tank handles most single-family Renfrew households comfortably. Homes with a suite drawing off the same tank, or larger families, often need a 50-gallon unit, and some homeowners choose tankless instead when space or continuous hot water is the priority — that's a separate cost conversation worth having with the technician before committing to a tank size.
When a water heater installation is part of a bigger project — a basement suite conversion or a new laneway home — it's worth involving the gas fitter early rather than after the framing and drywall are already in place. Gas line routing decided at the framing stage is far less disruptive than trying to run a new line through finished walls later, and coordinating with the general contractor on timing avoids the installer having to work around other trades mid-project.
For a laneway home specifically, the water heater installation is typically bundled with the broader gas and plumbing rough-in for the whole structure, since a laneway build starts from scratch rather than tying into anything that already exists.
Safety note
New gas line and venting work must be completed by a Technical Safety BC licensed gas fitter and inspected under a City of Vancouver permit before use. CANRO holds gas licence LGA0043870. If you detect a gas odour at any point, leave the home and call FortisBC at 1-800-663-9911 from outside.
Yes, in almost all cases a laneway house has its own dedicated water heater with a separate gas line, rather than sharing the main house's tank.
A swap reuses existing gas and vent lines; a new install requires running new piping and venting from scratch, which is real added labour and material.
No, it's a separate municipal charge pulled by the licensed installer as part of the job.
Yes, moving to a 50-gallon tank for a larger household is a common request and generally straightforward.
Typically a full day, depending on how far the new line and vent need to run.
No — it's a ballpark based on 2026 public market data. CANRO confirms the exact cost after seeing your mechanical room in person.
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