How do plumbers actually thaw a pipe?

Pipe thawing machines run a low-voltage current through the pipe to warm it from the inside out, which is much faster and safer than external heat. Verified Edmonton plumbers on OnCall Pros carry these on the truck during winter.

If my pipe hasn't burst yet, is it really an emergency?

Yes. A frozen pipe is a soon-to-be-burst pipe — the longer it sits frozen, the higher the chance the ice expansion splits it. Prevention is dramatically cheaper than burst-pipe repair plus water damage.

What does winter prevention cost?

Booking a plumber to insulate vulnerable lines and add heat tape in the fall is a fraction of the cost of one burst-pipe call. Good off-season investment for older Edmonton homes.

What if it's the water main from the street?

If your service line itself is frozen — no water anywhere, even after a long thaw — that's an EPCOR call, not a plumber call. We'll tell you in the intake which it likely is.

Edmonton, AB · Winter emergency dispatch

Frozen pipe repair in Edmonton — thawed safely, fast.

When Edmonton drops below -25°C and the wind picks up, exterior walls and crawl-space lines freeze fast. Tell us where the freeze is and we'll dispatch a verified plumber on RED-lane priority — before the pipe splits.

Call (587) 415-4611

Prefer calling? Start your request by phone.

A licensed Edmonton plumber repairing a fixture in a customer's home

Quick reference

Who to call

Situation	Who
Pipe frozen but not burst	Leave the tap open, gently warm the area, start a request.
Pipe split while thawing	Shut your main valve, then call our dispatch line.
No water at all in deep cold	Likely frozen — get it thawed before it splits.

Typical urgency

Scenario	How fast
Suspected frozen line	Same day — every hour frozen raises the burst risk.
Frozen line that has burst	Act immediately — shut the water off first.
Repeated freezing each cold snap	Soon — the run likely needs insulation or rerouting.

Details to have ready

Detail	Why
Which fixtures have no flow	Helps pinpoint the frozen section.
Where the cold run is (crawlspace, exterior wall)	Edmonton freezes usually hit unheated runs.
Any visible bulge or split	Tells us if it's a thaw or a repair.

What we cover

No water at one tap

Other taps work normally — the freeze is on a single branch line, usually in an exterior wall or unheated space.

No water anywhere

Whole-house freeze, often the main line in a crawl space or near the foundation. Higher burst risk.

Visible frost on a pipe

If you can see the frozen section, the plumber can thaw it before it splits.

Bulging or cracked pipe

Already burst (or about to). Treat as a burst-pipe RED — shut off the water now.

What to do before the plumber arrives

1
Open the affected tap to a drip.
Gives expanding ice somewhere to push and reduces the chance of a burst while you wait.
2
Locate your main shut-off — but don't close it yet.
If the pipe does burst before the plumber arrives, you want to be able to shut the water off in seconds.
3
Warm the area gently — no open flame.
A hairdryer, heat lamp, or space heater pointed at the suspected freeze location. Never a propane torch — that's the leading cause of house fires from DIY thaws.
4
Open cabinet doors under sinks on exterior walls.
Lets household heat reach the supply lines — especially important on north-facing kitchen and bathroom sinks.
5
Don't pour boiling water on a frozen pipe.
Thermal shock can crack copper. Slow, even warming is what works.

How OnCall Pros works

Step 1
Tell us what's wrong
Two-minute intake. No phone tree.
Step 2
We dispatch a verified plumber
Licensed, insured, and currently available in Edmonton.
Step 3
Stay in the loop by text
Get your plumber's name and photo, and updates via SMS.

Frequently asked questions

How do plumbers actually thaw a pipe?: Pipe thawing machines run a low-voltage current through the pipe to warm it from the inside out, which is much faster and safer than external heat. Verified Edmonton plumbers on OnCall Pros carry these on the truck during winter.
If my pipe hasn't burst yet, is it really an emergency?: Yes. A frozen pipe is a soon-to-be-burst pipe — the longer it sits frozen, the higher the chance the ice expansion splits it. Prevention is dramatically cheaper than burst-pipe repair plus water damage.
What does winter prevention cost?: Booking a plumber to insulate vulnerable lines and add heat tape in the fall is a fraction of the cost of one burst-pipe call. Good off-season investment for older Edmonton homes.
What if it's the water main from the street?: If your service line itself is frozen — no water anywhere, even after a long thaw — that's an EPCOR call, not a plumber call. We'll tell you in the intake which it likely is.

Edmonton-specific notes

Edmonton's deep winter (sustained −25 °C with windchill) regularly freezes any pipe in an exterior wall, attached garage, or vented crawl space. Older Mill Woods, Capilano, and Beverly homes with non-insulated kitchen plumbing on north walls are the most common service calls here. The single highest-risk night of the year in Edmonton is the first overnight low below −20 °C after a chinook — homes that were warm for a week suddenly drop to ambient on the worst-insulated runs and freeze within hours. If a chinook is on the way out and the forecast turns cold, leave a pencil-thick stream running on the most exposed cold tap overnight; the moving water buys you the temperature margin you need.

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Edmonton, AB · OnCall Pros direct-pay marketplace · RED-lane dispatch