Department of Deep Freeze
Frozen Pipe Thawing in Oakville
A cold morning, a turned tap, and nothing comes out. The pipe is frozen. Here is how it gets thawed safely, before the ice splits it open.
- Clear diagnosis before any cutting or replacing
- Price explained before the work starts
- Tested with water running before we leave
- Booked by phone, no forms
or ring (365) 399-5986Real people answer. Bookings by phone only.
- Licensed & insured (details on request)
- Oakville & Halton
- Phone bookings only
What frozen pipe thawing involves
Water expands as it freezes. In a line, that ice plug builds pressure between itself and the closed tap. The pipe may hold, or it may split. Thawing is about warming the frozen section gently and steadily, while keeping a tap open so melting water has somewhere to go.
Plumbers use controlled heat: heat guns at a distance, heating pads or tape, and for metal pipe, sometimes an electric thawing machine that passes current through the line. Open flame is never the answer. It scorches framing, and on plastic pipe it is a quick way to make a second problem.
Job sheet: Frozen Pipe Thawing in Oakville
- Where we get in
- Pipes on outside walls, garages, crawlspaces and above cold ceilings
- On the van
- Heat gun, pipe thawing machine, infrared thermometer, insulation sleeves, heat cable
- Before we pack up
- Full flow restored and the thawed section checked for splits
- How to book
- Phone only: (365) 399-5986
Why it happens in Oakville homes
Lake Ontario softens Oakville winters a little, but cold snaps still drive temperatures well below freezing for days at a time. Pipes freeze where cold air reaches them. Sinks plumbed into an exterior kitchen wall freeze often. So are lines running through garages, crawl spaces, unheated bump-outs and the band joist where the floor meets the foundation.
Outdoor faucets are another favourite. A hose left connected keeps water in the bib, and the ice can split the pipe inside the wall where nobody sees it until spring. Our guide on winterizing outdoor faucets covers how to avoid that.
Signs you need this now
- One tap with no water during a deep freeze
- Frost on an exposed pipe
- Kitchen sink on an outside wall that stopped
- Hose bib line in a garage frozen
- Bulge in a copper line
What to check before you call
- Find out which taps work. If one fixture is dry and the rest flow, the freeze is local.
- Open the dry tap slightly. Leave it open.
- Look and feel along the exposed pipe for frost, bulges or a split.
- If you see a split, close the main valve now. Our guide to the primary shut-off will help.
- Open cabinet doors and raise the heat to bring warm air to the wall.
A split pipe often stays quiet while frozen. The leak starts the moment it thaws. Have the main valve within reach when the water comes back.
The visit in five steps
- 1Open the faucet so melt water can escape
- 2Find the frozen section by temperature
- 3Thaw slowly from the faucet end back
- 4Check the pipe for cracks
- 5Insulate or reroute so it does not refreeze
How the visit runs
The plumber traces the run to find the frozen section, opens access if needed, and applies controlled heat while watching for leaks. Once water flows, the line is checked along its length. Damaged sections are cut out and replaced. Then comes the real fix: insulation, rerouting or sealing the draft that caused the freeze, so the same run stays liquid through the next cold snap.
Preventing the next freeze
The fix that lasts is keeping cold away from the pipe. Seal gaps in the rim joist with foam. Insulate runs in garages and crawl spaces. Close the inside shut-off to outdoor faucets each fall and drain them. When the forecast calls for a deep cold snap, keep the thermostat steady overnight and leave sink cabinets on exterior walls open. If you head south for part of the winter, our vacation checklist covers the rest.
Related problems
If the ice already won, you need burst pipe repair, and the steps in what to do when a pipe bursts. For frost-damaged hose bibs, see outdoor faucet repair.
Straight answers to common calls
Can I thaw a line with a hair dryer?
On an exposed pipe, a hair dryer on a moderate setting is a reasonable start. Keep it moving, keep the tap open and keep it away from water.
How do I know if a frozen line has burst?
You may see a split or bulge. Often you only find out when it thaws and water appears, so watch closely as flow returns.
Should I leave faucets dripping in a cold snap?
A slow drip at taps on outside walls helps keep water moving. It is a brief-term measure, not a fix for poor insulation.
Keep reading
- Burst Pipe Repair in Oakville
A bang in the wall, then the sound of running water where there should be none.
- Outdoor Faucet Repair in Oakville
The hose bib drips all summer, or worse, it split over winter and nobody knew until the hose went on in May.
- Winterizing Outdoor Faucets Before Frost
A quarter hour of autumn work spares you a cracked hose bib come spring.
- Burst Pipe? Your First Ten Minutes
Water pouring from the ceiling.
Ready when you are
One call books the visit. Tell us what you are seeing and we will tell you straight what it likely is.