A gas boiler installation in a typical Metro Vancouver home involves draining the old system, removing the old unit, setting the new one, and testing everything before handoff.
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Quick answer
A gas boiler installation typically spans one full day for a straightforward like-for-like replacement, or several days when venting, gas line, or piping changes are needed. The general sequence includes draining and removing the old boiler, making any required changes to gas supply, venting, or piping, setting and connecting the new unit, filling and purging the system of air, commissioning and testing under load, and a final walkthrough with the homeowner. Permits and inspection, arranged by the licensed contractor, are part of the process for most boiler installations. Exact timing depends on the specific home's mechanical room, existing infrastructure, and scope of work.
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A proper boiler installation starts before any equipment arrives, with an in-home assessment to confirm sizing, review the existing gas line, venting, and piping, and identify any code issues that need addressing as part of the project. A licensed contractor pulls the required permit for the work, which protects the homeowner by ensuring the installation is inspected against current code rather than simply matching whatever was there before, which may have been installed under older standards.
| Project scope | Typical duration |
|---|---|
| Like-for-like replacement, no venting or gas line changes | Usually one day |
| Replacement with venting upgrade or gas line resizing | One to two days |
| Replacement including an added indirect tank or zone reconfiguration | Two to three days |
| Full mechanical room reconfiguration or combi conversion | Several days, sometimes longer depending on scope |
These are general patterns, not commitments; your contractor will give a specific estimate once the scope of your project is confirmed.
Most jurisdictions in Metro Vancouver require a permit inspection for gas boiler installations, and your contractor should arrange this as part of the project rather than leaving it to the homeowner. Once the system passes inspection and the final walkthrough is complete, it is worth reviewing the first-week checks for a new installation and keeping your paperwork, including the permit and any warranty registration, in one place.
Safety note
If you ever smell gas near a boiler, water heater, or vent, do not investigate further: leave the home first, then call FortisBC at 1-800-663-9911. Combustion appliances should only be serviced by a Technical Safety BC licensed gas fitter.
Typically the bulk of a single day even on multi-day projects, since the old unit is removed and the new one connected and tested within roughly the same working day where possible.
Yes, gas boiler installations in Metro Vancouver require a permit and inspection, which your licensed contractor should arrange as part of the project.
Additional time is usually needed when venting must be replaced, the gas line needs resizing, or the project includes adding an indirect tank or reconfiguring zones.
Clear reasonable access to the area, move any stored items away from the boiler, and keep pets away from the work area during the visit.
Yes, commissioning and testing under load is a standard part of installation, confirming correct combustion, ignition, and control response before handoff.
As a ballpark, not a quote, boiler installation projects commonly run $6,500 to $14,000 or more, and a technician can give a firm figure after assessing your specific home.
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