Why this matters more than you think
Every emergency plumbing call we take starts with the same question: 'Where is your main water shut-off?' If the homeowner knows, the damage is contained in 30 seconds. If they don't, water keeps flowing while we drive to the address — adding hours of damage we couldn't have prevented.
Take five minutes today to find yours. Then test it. Then label it. That's the entire job.
Where to look
In a typical Lower Mainland home built after 1980, the main shut-off is one of these three places:
Inside the house, near where the water line enters from the meter — usually a basement utility room, mechanical closet, or under-stair space. Look for a brass or chrome ball valve on a copper pipe coming out of a wall or floor near the front of the house. The pipe is typically 3/4-inch or 1-inch.
Outside the house in a small concrete or plastic box near the property line — often beside the driveway or in a flower bed. Lift the lid; the shut-off valve is inside. You may need a curb-key tool to turn it (any hardware store sells them inexpensively).
In an older Surrey or Burnaby home (pre-1980s), the shut-off is more likely a gate valve (round handle, looks like an outdoor faucet) on the supply line where it enters the house. Gate valves seize up over time — see the testing section below.
How to test it (do this annually)
Turn the valve fully clockwise to close. Run a tap upstairs — water should stop within 5–10 seconds. If it doesn't stop entirely, the valve is partially failed and won't fully isolate during an emergency. Replace it before winter.
Turn the valve back fully counter-clockwise to reopen. Don't force it — gate valves can snap their stems if over-torqued, and ball valves don't need force to open.
While you have water off, walk through the house. Any tap dripping with the main closed means there's a leak somewhere downstream of the valve. Worth investigating.
What if it's seized
Many older homes have shut-offs that have never been turned in 20–30 years. They seize up. If yours won't move:
Don't force it — a snapped valve stem with the valve in an unknown position is worse than no shut-off at all.
Call us during business hours. Replacing a seized main shut-off is usually a same-day job: we coordinate with the city to shut off at the curb, swap the valve for a modern ball valve, and you're back online in an afternoon.
If your home doesn't have a curb stop and the only shut-off is the seized indoor one, you'll need the city water crew on-site for the swap. We arrange this for you.
Bonus: know your other shut-offs too
Each toilet has its own shut-off near the floor (small chrome valve on the supply line). Each sink has shut-offs under the cabinet. Your water heater has shut-offs on the cold inlet (and sometimes the gas line). Knowing each fixture's local shut-off lets you isolate just that fixture without killing water to the whole house.
Take 10 minutes one Saturday and label every shut-off in your home with masking tape. Future-you (and us) will thank you.