Ice Dam Removal Toronto: Safe Steam Removal and Prevention

Emergency ice dam removal across Toronto and the GTA. We steam the ice off safely, find where the water got in, and fix the attic problem that caused it. Licensed, bonded and insured since 2005.

Ice building up at the roof edge?

Long icicles hanging from a snow-covered Toronto roof edge

Safe Ice Dam Removal That Will Not Damage Your Roof

An ice dam is a ridge of solid ice at the edge of your roof that stops meltwater from draining. The water backs up behind it, works its way under the shingles, and runs into the attic and down the walls. By the time it shows on a ceiling it has usually been soaking insulation for days. Ice dam removal in Toronto is genuinely urgent work, because every additional freezing night forces more water into the building. Chipping at the ice with a hammer or a hatchet is how most roofs get wrecked in January: shingles are brittle in the cold and break easily, turning a water problem into a replacement. We take ice dams off with low pressure steam, seven days a week through the winter.

Low pressure steam removal that will not crack shingles or pull eavestroughs

Same day emergency response during and after winter storms

Full attic inspection so the same dam does not form again next month

Why Ice Dams Form on Toronto Roofs

Ice dams are a heat problem, not a weather problem. Warm air escapes from the living space into the attic, warms the underside of the roof deck, and melts the snow lying on the upper part of the roof. That meltwater runs down until it reaches the eaves, which sit outside the heated envelope and stay well below freezing, and there it turns back into a solid ridge of ice. The ridge grows, the pool of water trapped behind it gets deeper, and eventually the water sits higher than the shingle overlap and gets underneath. It is why the houses on your street with the biggest icicles are usually the ones with the warmest attics, and why knocking the ice off never stops it coming back.

Recessed lights, bathroom fans venting into the attic instead of through the roof, an unsealed attic hatch, insulation crushed flat over the top plates and soffit vents blocked with insulation are the usual culprits. We look for all of them while we are up there. Removing the ice deals with the emergency; correcting the air leakage and the ventilation is what actually ends the problem.

Technician inspecting attic insulation and ventilation after an ice dam

Ice Dam Warning Signs and What They Mean

Warning Sign

Large Icicles

Interior Stains

Ice Ridge at Eaves

Gutter Damage

What You See

Thick icicles hanging off the eavestrough

Damp patches on ceilings or around windows

A solid band of ice along the roof edge

Eavestroughs sagging or pulling away

What It Means

Meltwater is refreezing at the cold eaves

Water is already past the shingles

Drainage is blocked and water is pooling

Ice weight has overloaded the brackets

Risk If Ignored

Ice grows until water backs up under shingles

Soaked insulation, stained drywall and mould

Rotted decking and fascia by spring

Torn fascia and water dumping at the foundation

Our Response

Steam removal and a drainage channel cut through

Steam removal plus a full attic inspection

Steam removal, then ventilation and insulation work

Rehang or replace the eavestrough, add ice guard

Typical Timeline

Same day

One to two hours

Two to four hours

Half a day

Low pressure steam melting a drainage channel through an ice dam at a roof edge

Ice Dam Prevention That Lasts Beyond One Winter

Every ice dam call we take in January leads to the same conversation in April: what do we do so this does not happen again. The answer is nearly always a combination of three things, and none of them is a heat cable.

First, stop warm air getting into the attic. That means air sealing the ceiling plane, sealing around pot lights and the attic hatch, and making sure bathroom and kitchen fans are ducted right through to the outside rather than dumping humid air into the attic. Second, get the insulation depth back up to current Ontario levels across the whole attic floor, including the awkward strip over the exterior walls where it is usually thin or compressed. Third, balance the ventilation so cold outside air moves continuously from the soffits up to the ridge and carries any remaining heat away before it can melt the snow above. Our attic ventilation and insulation team handles all three as a single job.

On a roof that is due for replacement anyway, we go further and run a self-adhered ice and water shield membrane from the eaves up well past the interior wall line. That is the detail that keeps water out of the house even if a dam does form, and it is far cheaper to do as part of a roof replacement than as a standalone job.

Our Three Step Ice Dam Solution

Step 1: Safe Removal

Purpose built low pressure steamers melt the ice at safe temperatures and pressures, so shingles, flashing and eavestroughs come through intact, which is not the case with chisels, rock salt or pressure washers.

Step 2: Root Cause Analysis

Once the ice is gone we check the attic and the ceilings below to see where water actually got in, so wet insulation, stained decking and damaged underlayment are dealt with before they turn into mould or rot.

Step 3: Permanent Prevention

We report on air leakage, insulation depth and soffit to ridge airflow, then quote the corrections that stop dams forming, instead of leaving you to book the same emergency again next winter.

Perforated aluminum soffit intake vent under a snow-covered roof edge
Water stain on a ceiling caused by an ice dam leak in a Toronto home

Why Toronto Homeowners Call The Roof Technician for Ice Dams

Professional low pressure steam equipment, so no shingles are broken getting the ice off.

We treat the cause up in the attic, not just the ice at the roof edge.

Licensed, bonded and insured crews with over 20 years of GTA experience.

Emergency winter response seven days a week right through ice dam season.

FAQ

Ice Dam Questions Toronto Homeowners Ask

Can I remove an ice dam myself?

We strongly advise against it. Hammers, chisels and hatchets crack shingles that are already brittle in the cold, and rock salt or calcium chloride corrodes eavestroughs, stains masonry and kills the planting below. A roof rake can help if you can safely reach the lowest few feet from the ground, but climbing an icy ladder in winter is how people get seriously hurt. Low pressure steam is the only method that takes a dam off without damaging the roof.

Will the ice dam come back after you remove it?

If nothing changes in the attic, yes, and often within the same winter. Removal is emergency treatment rather than a cure. That is why every removal we do includes an attic inspection covering air leakage, insulation depth and soffit to ridge airflow, plus a written recommendation for the permanent fix. Homes where we correct the ventilation and air sealing very rarely call us back for the same problem.

Does home insurance cover ice dam damage?

Most Ontario homeowner policies cover the sudden interior water damage an ice dam causes, such as ruined drywall, flooring and contents, but they generally do not cover the cost of removing the ice or correcting the attic. Coverage also depends on your policy wording and your deductible. We document everything with photographs and give you a written report you can send straight to your adjuster.

When is ice dam season in Toronto?

Roughly December through March, and the worst days are not the coldest ones. Dams form when a decent snow load is sitting on the roof and daytime temperatures hover around freezing while nights drop well below. A heavy snowfall followed by a mild afternoon is the classic setup. If you see icicles growing along the eaves after that pattern, call before the water finds its way inside.

Ice Dam Removal Across Toronto and the GTA

We run winter crews through North York, Etobicoke, Scarborough, East York, Old Toronto and the downtown core, and out across Mississauga, Brampton, Vaughan, Richmond Hill, Markham and Oakville. Older neighbourhoods with shallow attics and knee walls, such as Leaside, the Beaches and Long Branch, produce some of the worst dams we see, and newer two storey homes with cathedral ceilings and a lot of pot lights are not far behind. Wherever you are, the sequence is the same: steam first, inspect second, quote the permanent fix third.

Ice dams rarely arrive on their own. If water has already come through, our roof repair crews in Toronto can replace damaged decking and underlayment once the roof has dried out, and on low slope sections we check the flat roofing membrane and the drains at the same time.

Book a free, no-obligation inspection and we will tell you what it takes to get safely through the rest of the winter.

Request Emergency Ice Dam Service

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Address

52 Tewsley Pl, Etobicoke, ON M9P 1N7

Call Us

(416) 826 -0040

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Protect Your Home from Ice Dams This Winter

Don’t wait for a stain to appear on the ceiling. Get a free, no-obligation ice dam assessment from The Roof Technician today.