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Frozen Pipes in BC: How to Winterize Outdoor Taps and Prevent Bursts
The garden hose is still clipped to the outside tap from the last time you watered the planters in September. It's mid-October, the mornings are getting crisp, and that hose is now one of the easiest ways for your plumbing to get hurt this winter.
Every winter, some British Columbians end up with frozen pipes, frozen service lines and no water. That's how the Rayleigh Waterworks District near Kamloops puts it, and it isn't only an Interior problem. The City of Port Coquitlam was warning residents about frozen pipes in January 2026, and Surrey keeps a standing page on frozen water lines. Here's the checklist to run through before the first real cold snap.
Start outside: the taps freeze first
Port Coquitlam's advice is plain: outdoor faucets are often the first to freeze. Water trapped in the tap and the pipe feeding it can freeze and crack the line. The Regional District of North Okanagan adds a warning sign worth knowing: ice built up on a hose bib can mean flooding once it thaws. If you see it, check the inside wall behind the tap for water.
If your outdoor tap has an inside shut-off
The North Okanagan guide lays out the steps:
Take everything off the tap, including the hose, quick-connect fittings and Y-splitters.
Close the inside shut-off.
Open the outside tap and let it drain.
When it stops dripping, close the outside tap.
That last step is where advice varies. Some guides say to leave the outside tap open. The North Okanagan guide says not to, because an open tap lets freezing air into the pipes in the home. If your local utility gives instructions, follow theirs.
If you have a frost-free hose bib
On a frost-free hose bib (also called a frost-free sillcock), the valve that shuts off the water sits inside the heated part of the house. It's installed on a slight downward angle so the water left in it drains out after you close it.
The catch is that it only works if it can drain. One manufacturer's installation guide spells it out: close the handle and detach the hose during freezing weather, because with the hose attached the sillcock can't drain properly, and the trapped water may freeze and damage it.
If you have neither
No inside shut-off and an ordinary tap? The North Okanagan guide says to close the tap, take everything off it, fit an insulated hose bib cover, and check both the tap and the pipe inside regularly for drips or ice. It also says installing a frost-free hose bib or an inside shut-off is highly recommended. Outdoor taps and water lines are part of our plumbing install and repair work.
While you're outside, don't forget the other water lines. PreparedBC lists sprinkler lines alongside outdoor hoses as higher risk, and Rayleigh adds pools and decorative water features. Turn them off, disconnect them and drain them.
Then protect the pipes inside
The trouble spots inside are the parts of the house that aren't really heated. The City of Surrey lists basements, crawl spaces, attics, garages and outside services.
Insulate exposed pipes in those areas. Surrey mentions pipe sleeves, UL-listed heat tape and heat cable. Port Coquitlam notes foam pipe insulation is sold at building supply and home improvement stores.
Keep the garage door closed if water lines run through the garage.
Open the cabinet doors under kitchen, bathroom and laundry sinks during cold spells so warm air reaches the pipes.
Seal drafts. Insurance Bureau of Canada (IBC) suggests sealing cracks and openings around windows and doors.
If a line has frozen before, Surrey and Port Coquitlam both suggest letting a tap run a pencil-thin trickle during cold weather. Port Coquitlam says to keep it going 24 hours a day until temperatures return to seasonal norms. On a water meter, you pay for that water.
Keep the heat on, even when you're away
PreparedBC says to set your thermostat no lower than 12°C while you're away and to have someone check on the house. Rayleigh recommends at least 15°C. Before a winter trip, read your home insurance policy too. IBC says most policies spell out how often a competent person has to check the home, and most exclude frozen pipe damage if the home is vacant.
If your furnace or heat pump breaks down in a cold snap, IBC's advice is to shut off the water and drain the pipes while it's being fixed. If your furnace is already acting up, our guide to a furnace blowing cold air covers the checks you can do yourself.
Find your main shut-off now, not during a flood
Surrey's advice is to know where the main valve inside your house is and make sure it works. Rayleigh notes it's often near the water meter where the line enters the home, typically in the basement. In a condo or townhouse, call your building owner or manager. PreparedBC's reminder for turning it off: righty tighty.
Near the property line there's often a second valve, the curb stop, which your municipality or water district controls. The rules vary. Port Coquitlam asks residents to call the City to operate it, and says a resident or plumber who damages it is liable for the repair. Vancouver lends a free shut-off key for water lines 50 mm (2 inches) or smaller. In Surrey, if the service line ruptures between the street and your home, call the City at 604-591-4152 for an emergency turn-off.
If a pipe freezes
No water, or just a trickle, when you turn on a tap is the usual first sign. Rayleigh also lists heavy frost on pipes in the basement. Port Coquitlam says frozen pipes are most often along exterior walls, where the water service comes in through the foundation, or on the service pipe between the property line and the house.
If you can reach the frozen section:
Surrey's guidance is to turn off the main valve inside the house first.
Open the nearest tap so water and air can move as the ice melts.
Warm the pipe slowly with a hair dryer, heating pad, heat lamp, space heater or warm towels. Rayleigh suggests working from the tap back toward the blockage.
Never use an open flame. Surrey warns a propane torch can damage the pipe and start a fire, and Port Coquitlam adds propane or kerosene heaters and charcoal stoves. Don't leave electric heaters running unattended.
Be patient. Port Coquitlam says thawing can take one to six hours.
Once water flows, check for cracks or leaks and turn the water back on slowly.
If the frozen section is inside a wall or underground and you can't get at it, Surrey's advice is to call a plumber.
If a pipe bursts
Shut off the main valve and call a plumber. Then call your insurer. IBC says most insurers take claims 24/7, and that standard home policies cover the resulting damage from frozen and burst pipes as long as the pipes are in the heated part of the home and reasonable steps were taken to keep the heat on. Details vary, so read your own policy. If your home still has Poly-B plumbing, our post on why BC home insurance won't cover Poly-B pipes is worth a read before winter.
Need a hand before the cold hits?
Ark Plumbing & Heating's licensed plumbers serve Surrey and the Lower Mainland. If you want a frost-free tap or an inside shut-off added, pipes checked in a crawl space, or a cracked line repaired, we can help, and our emergency plumbing line is open 24/7 for burst pipes. Call 604-441-3411 or send us a message.
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Noah Debebe