Why a water heater is strapped
A storage tank holds a large mass of water, and in an earthquake that mass can move and topple the unit. FortisBC states the purpose plainly: the tank must be securely strapped to keep the water line and gas line from breaking. A broken gas line is the hazard that makes this a safety item rather than a cosmetic one.
The restraint keeps the tank in place against the building structure, so the connected water piping and the gas connection are not pulled apart by the unit moving.
The code requirement
FortisBC states that the BC Building and Plumbing Codes now require the tank to be securely strapped. That makes restraint a code item on a compliant installation, and it is one of the details an inspection looks at when a gas permit is closed.
For an older home whose tank predates the requirement, the same work is a retrofit that contractors who install and service water heaters can carry out, as FortisBC notes. Whether a permit is needed for the retrofit depends on what gas work it involves, and the permit path is confirmed for the address.
What the restraint involves
The restraint anchors the tank to the building structure so it cannot move independently during shaking. The specific method and hardware follow the manufacturer's instructions and the BC Building and Plumbing Codes, and it is installed by a licensed contractor rather than improvised. This site publishes no do-it-yourself instructions for work that touches the gas or water connections.
The space around the heater matters too. FortisBC advises keeping the area around gas appliances clear, not blocking vents or pipes, and checking with a licensed gas contractor before surrounding a gas appliance with furniture or stored items.
When it gets done
The natural moment for strapping is an installation or replacement, when the old unit is out and the new one is being set. A like-for-like swap and a tank-to-tankless conversion both end with a restrained unit, and the replacement-process guide covers that sequence.
A retrofit on an existing tank is the other path. Because the restraint is part of a water heater installation, CANRO Heating & Cooling can include it in an installation, replacement or service visit across its verified Metro Vancouver coverage.
The rest of the gas-safety routine
Strapping is one part of earthquake and gas readiness. FortisBC explains that the gas is off when the valve handle is sideways across the pipe, and that keeping the owner's manual, keeping the area clear and having gas appliances serviced by a licensed gas contractor are the other regular habits. Technical Safety BC generally recommends annual servicing of gas appliances.
If you smell gas, do not touch switches: leave the building and call the FortisBC emergency line at 1-800-663-9911 or 911 first. A suspected leak is never a maintenance appointment.
What CANRO does
CANRO Heating & Cooling installs and replaces gas water heaters across its verified Metro Vancouver coverage and restrains them as the code requires. Installation and replacement estimates are free and in writing, while a repair visit carries a diagnostic charge that is credited toward the repair if you proceed.
The written estimate is where the scope is confirmed for the address, including whether the job is a replacement, a conversion or a retrofit of the restraint on an existing unit.