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Frozen Pipes in Langley | Prevent and Fix
Frozen pipes in Langley: why they burst, which spots in your home freeze first, and exactly what to do in the first five minutes if one lets go. Call 24/7.
EMERGENCY PLUMBING
Plumblink Crew
9/12/20265 min read
Frozen Pipes in Langley: How to Prevent Them and What to Do If One Bursts
Langley does not get Prairie winters, and that is exactly the problem.
Homes here are built for wet, not for cold. So when an outflow wind drops us to minus eight for a few nights, the pipes that freeze are the ones nobody thought about: a crawl space run, a line in the garage wall, the hose bib with a hose still attached from summer.
Most burst-pipe calls we take are not during the freeze. They come on the thaw, when the ice plug melts and the split it left behind opens up.
Why pipes freeze here
Water expands about nine percent when it turns to ice. In a closed pipe that pressure builds between the ice plug and the nearest closed tap, and the split usually happens downstream of the ice, not at it.
Two things make Langley homes vulnerable. First, we rarely stay frozen. We drop below zero overnight and climb above it by afternoon, and every cycle stresses the same joint again. Second, older Langley and Aldergrove homes have vented crawl spaces and unheated garages, while newer Willoughby and Walnut Grove builds push more plumbing into exterior walls and above garages.
Copper splits cleanly. Poly-B fails at the fittings. PEX has some give, but the brass fittings still crack.
The five spots that go first
Crawl spaces - vented ones move cold air straight across the supply lines. Our most common source of freeze calls.
Garage walls and above-garage rooms - an unheated north-side garage is a freezer with pipes in it.
Outdoor taps, especially with a hose connected.
Unheated additions, suites and shops - anything with heat that gets turned off.
Exterior wall runs behind kitchen sinks - cabinet doors keep the heat out.
If a pipe has frozen before, it will be the same spot again.
Before the first cold snap
Disconnect the garden hose. Highest-value five minutes on this list. Most Langley homes built in the last 25 years have frost-free sillcocks that drain back into the heated wall when you shut them off. A hose left on traps water in the barrel and defeats the design. The bib splits inside the wall, and you find out in spring when water comes through the drywall.
Find your main shut-off now, in daylight, and make sure it turns. It is usually where the line enters the house. A valve that has not moved in fifteen years often will not move when you need it to. A seized one is a scheduled repair, not a two-in-the-morning one.
Insulate and seal. Foam sleeve on crawl space and garage lines is cheap and works. But a draft blowing directly on a pipe beats insulation every time, so seal rim joists, crawl space hatches and the gap where the hose bib passes through the wall.
On the coldest nights, open sink cabinets and leave a pencil-thin trickle running on the tap furthest from the main. Worth doing on the worst two or three nights of the year. It is not a fix for a badly exposed line, and it does use water.
Two honest caveats. Closing crawl space vents cuts freezing risk but raises moisture and mould risk in a climate this wet, so open them again after the snap. And heat cable works, but it causes a real share of house fires, so use a current CSA-certified product with a thermostat and replace old runs rather than plugging them in and hoping.
If it is frozen but has not burst
Signs: no water from one fixture while the rest of the house is fine, frost or condensation on the pipe, a bulge, or gurgling when you open the tap.
Leave the tap open so melting water has somewhere to go. Apply gentle heat with a hair dryer, heat gun on low, or a space heater, working from the tap back toward the frozen section. Never use an open flame - thawing pipes with a torch is a regular cause of house fires.
If you cannot find it or reach it, stop. A frozen line inside a wall needs leak detection equipment rather than guesswork and drywall removal.
The first five minutes after a burst
Shut the water off at the main. Only step that matters in the first minute.
Open the lowest taps to drain remaining pressure.
Kill the power to the affected area if water is near outlets or fixtures.
If it is a hot water line, shut the tank off too.
Photograph everything before you clean up. Insurers ask.
Call a plumber. We answer around the clock, no call-out fee.
A line that runs twenty minutes is a repair. The same line overnight is a restoration project.
Who is responsible for what in Langley
"Langley" is two municipalities. The Township runs under Waterworks Regulation Bylaw No. 6074, the City under Bylaw No. 2550. The split is the same in both: the municipality owns the main and the connection to the property line, and you own the private service line from there into the house, plus everything inside.
So anything that freezes inside, in the crawl space or in the garage is yours, and that is where nearly all freeze damage happens. The buried service line is also yours - rare to freeze, expensive when it does, and usually best fixed with trenchless replacement. The curb stop at the property line is municipal. Leave it alone; Township residents can call Engineering at 604-533-6006.
On insurance: most BC policies cover sudden and accidental water damage, but commonly exclude homes left unheated or unattended, and often exclude the pipe repair itself while covering the damage. Read yours before you need it.
When repair stops making sense
One frozen pipe is bad luck. The third failure in three winters is a system telling you something.
With Poly-B, freeze damage shows up at the crimped fittings, and fixing one does nothing for the other two hundred - replacement is the durable answer. With old galvanised steel, splits land on existing corrosion, and repiping costs less over five years than a run of emergency repairs. Our labour rates are published and you can request a quote any time.
FAQs
At what temperature do pipes freeze in Langley? There is no single number - exposure and duration matter as much as temperature. As a working rule, pipes in an unheated crawl space or garage are at risk when outdoor air sits below about minus six for six hours or more. A well-insulated interior pipe handles far colder. A pipe in a draft can freeze near minus one.
Should I leave taps dripping overnight? On the coldest nights, yes - a thin trickle on the tap furthest from your main. It is not a substitute for insulating an exposed line, so treat it as a cold-snap measure, not a whole-winter habit.
My hose bib works fine but there is water in the wall in spring. Why? Almost always a frost-free sillcock left with a hose attached over winter. The trapped water froze and split the barrel inside the wall. It only shows when you turn the tap on in spring.
Do you come out at night for a burst pipe? Yes. We are available 24/7 across Langley and there is no call-out fee.
Call now
Plumblink Plumbing Inc. is Red Seal certified and Technical Safety BC licensed, available 24 hours a day across Langley, with no call-out fee and a 10% discount for customers aged 60 and over.
Call (236) 233-9696 - or see all our plumbing services.
Langley, BC, Canada
Plumblink Plumbing Inc.
