"Our kitchen tap stopped running during a cold snap. The plumber found a frozen water line along the garage wall, thawed it carefully and checked for leaks before turning the water back on. He also recommended better insulation for that section."
Frozen & Burst Pipe Repair in Sarnia, ON
No water from the tap or a pipe that's already split? We provide frozen pipe repair in Sarnia with safe, flame-free thawing, fast burst pipe repair and a leak check before we leave.
Frozen or Burst Pipe? Do This First
Four quick steps limit the damage while our plumber is on the way.
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1
Shut Off the Main Water Valve
It's usually in the basement, where the water line comes in near the meter.
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2
Open the Affected Tap
This relieves pressure in the pipe and lets water out as the ice melts.
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3
Never Use an Open Flame
A torch or propane heater can crack the pipe or start a fire inside the wall.
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4
Keep Water Away From Electrical
If water reaches outlets or the panel, stay clear and don't stand in it.
If a pipe has already burst, turn off the water heater before draining the lines, then call (226) 796-5253 for emergency burst pipe repair.
Safe Pipe Thawing Service
Pipes in Sarnia homes usually freeze where they run along an exterior wall, through a garage or crawl space, or where the water line enters the basement. We find the frozen section and warm it gradually with controlled, flame-free heat, so the pipe doesn't crack as it thaws.
Find the Frozen Section
We trace the line back from the dead tap to the cold spot, so we only open up what we need to.
Thaw It Gradually
We start from the tap side so melting water has somewhere to go. No torches and no open flame.
Check for Leaks
With the water back on, we check the pipe under pressure. A pipe can split while frozen and only start leaking once it thaws.
If the pipe has split, we repair it on the same visit.
Burst Pipe Repair & Replacement
A split pipe can soak a ceiling or basement floor within minutes. For burst pipe repair in Sarnia, we stop the leak, replace the damaged section and get your water back on the same day.
- Cut out the split section and replace it with PEX or copper
- Pressure test the line before the water goes back on
- Check other pipes on the same cold wall for hidden splits
Filing an insurance claim? We give you an itemized invoice and photos of the damaged pipe.
No Water at All? Frozen Water Line
If no tap in the house works, the freeze is usually in the water service line, where it enters the basement or runs shallow under a driveway. We thaw a frozen water line from inside the house and check the meter and main shut-off for cracks before turning the water back on.
If your neighbours have no water either, the problem is likely in the City's water main, so contact the City of Sarnia first.
(226) 796-5253Why Pipes Freeze in Sarnia Homes
Where Pipes Freeze
- Exterior walls, especially under kitchen and bathroom sinks
- Unheated garages and crawl spaces
- Outdoor taps left connected to a garden hose
- The basement rim joist, where the water line comes into the house
- Rural well lines and pressure tanks in unheated pump houses. See our well pump service.
How to Prevent Frozen Pipes
- Insulate pipes on exterior walls and in crawl spaces, and add CSA-approved heat cable where insulation isn't enough
- Disconnect hoses, then shut off and drain outdoor taps before the first frost
- On the coldest nights, open cabinet doors under sinks and let a tap drip
- Keep the heat on when you're away. If your heating fails in a cold snap, pipes can freeze within hours, so book boiler repair before winter.
- Make sure your sump pump discharge line drains fully and isn't buried in snow. See our sump pump service.
Frozen & Burst Pipe Repair Reviews
"A copper pipe burst above our basement laundry area and water started dripping through the ceiling. The technician shut off the main supply, removed the damaged pipe section and installed a new connection. He checked the repair for leaks before leaving."
"We had no water in the upstairs bathroom after several freezing nights. The plumber traced the problem to a supply pipe in a poorly insulated exterior wall. He thawed the line gradually, confirmed it hadn't split and explained how to keep the area warmer."
"A pipe leading to our outdoor hose bib cracked after freezing. We noticed water leaking inside the basement when the line thawed. The plumber replaced the split section, inspected the shut-off valve and showed us how to drain the outdoor supply before winter."
"Our basement water line had frozen twice in one winter. This time the team thawed the affected section, inspected the exposed plumbing and added insulation around the vulnerable pipe. They also pointed out a gap near the foundation where cold air was getting in."
"We discovered a burst pipe behind the washing machine after the temperature dropped overnight. The technician located the split fitting, replaced the damaged section and checked the nearby connections. The repair was tidy, and the water supply was working again before he left."
Frozen & Burst Pipe FAQ
Can I thaw a frozen pipe myself?
If you can reach the frozen section, open the tap and warm the pipe from the tap end with a hair dryer on low, keeping it away from water. Never use a torch or open flame. If the pipe is inside a wall, or you see a bulge or crack, call us.
How long does pipe thawing take?
A frozen section we can reach usually thaws in under an hour. A pipe inside a wall or a frozen water line can take longer, and we'll tell you what to expect once we've found the cold spot.
Why do pipes leak after they thaw?
Water expands as it freezes and can split the pipe. While it's frozen, the ice plugs the crack, so the leak only shows once it melts. That's why we pressure test the line after every thaw.
Does home insurance cover burst pipe repair?
It depends on your policy. Many cover sudden water damage from a burst pipe but may not if the home was left unheated. We give you an itemized invoice to support your claim.
How do I keep pipes from freezing when I'm away in winter?
Keep the heat on, and for longer trips shut off the main valve and drain the lines. Many home insurance policies also require someone to check the house regularly while you're away, so check yours before you leave.
Related Plumbing Services
Boiler Repair
No heat in a cold snap? Boiler repair and installation to keep your home warm.
Water Heater Repair
No hot water? Tank and tankless water heater repair and replacement.
Well Pump Repair
Low pressure or no water on a rural property around Sarnia.
Sump Pump Repair
Keep your basement dry through spring thaw and heavy rain.
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Sarnia Neighbourhoods We Serve
- Blackwell
- Bluewater
- Bright’s Grove
- Bridgeview
- College Park
- Coronation Park
- Downtown Sarnia
- Errol Village
- Exmouth
- Heritage Park
- North End
- Oak Acres
- Old Esplanade
- Pandosy/Lakeview
- Rapids Parkway
- Sherwood Village
- Twin Lakes
- Wiltshire