Ice Dam and Roof Leak Damage Repair

When an ice dam forms along the eaves, meltwater backs up under the shingles and into the attic, walls and ceilings. DKI Simcoe Muskoka protects the roof, extracts the water, dries the attic and walls, checks for mould and rebuilds, for homes, cottages and businesses across Simcoe County, Muskoka and Parry Sound. Call 1-800-228-7739 any time, day or night.

What Causes Ice Dams in the Simcoe and Muskoka Snowbelt

An ice dam starts with heat. Warm air leaks from the house into the attic and warms the roof deck, so snow melts on the upper roof even when it is well below freezing outside. The meltwater runs down to the cold eaves and freezes again. Each cycle builds the ridge of ice higher, until water pools behind it and works its way up under the shingles.

Barrie, Orillia, Collingwood, Midland and much of Muskoka sit in the snowbelt, where lake-effect snow off Georgian Bay piles heavy loads on roofs and freeze-thaw cycles keep feeding the ice. Older homes with thin attic insulation, unsealed pot lights and bath fans vented into the attic are hit hardest.

Heavy icicles are the warning sign. Where icicles hang thick along the eaves, there is usually an ice dam behind them holding back water.

DKI technician working on damaged ceiling and wall framing

Signs an Ice Dam Is Leaking Into Your Home

Thick Ice Along the Eaves

A ridge of ice at the roof edge, often with heavy icicles, means meltwater is pooling behind it.

Ceiling and Wall Stains

Brown stains, peeling paint or bubbling drywall near exterior walls and above windows.

Water at Lights and Windows

Drips from pot lights, bathroom fans or the tops of window and door frames during a thaw.

A Wet or Frosty Attic

Damp insulation, frost on roofing nails or dark staining on the underside of the roof deck.

What to Do When an Ice Dam Leaks

These steps limit the damage until help arrives. Stay off the roof: ice and snow make it dangerous, and chopping at the ice damages the shingles.

1. Catch the Water

Put buckets and towels under the drips, and move furniture, rugs and electronics out of the way.

2. Make Light Fixtures Safe

If water is coming through a pot light or bath fan, turn that circuit off at the panel and don’t use the fixture until it has been checked.

3. Watch the Ceiling

If drywall is sagging with water, keep everyone out from under it and put a bucket beneath the lowest point. Call us before it gives way.

4. Photograph and Call Us

Photograph the damage inside and the ice from the ground, report it to your insurer, then call 1-800-228-7739.

How We Repair Ice Dam Damage

The first job is to stop more water getting in. Once the roof is protected, we deal with the inside, tracking moisture readings every day until the attic, framing and drywall are dry. Because we handle both the water damage and the rebuild, you deal with one company and your adjuster gets one complete file.

Emergency Roof Protection

Damaged or leaking roof sections are tarped as soon as it is safe to be on the roof.

Water Extraction

Water is extracted from floors and carpets, and trapped water is drained from ceilings in a controlled way.

Wet Insulation Removal

Soaked attic insulation and ceiling materials are removed so the roof deck and framing can dry.

Attic and Structural Drying

Air movers and dehumidifiers dry the attic, walls and ceilings to measured dry standards.

Mould Inspection

Where water has sat under the snow for weeks, we check for mould and remove it under containment.

Roof and Interior Repairs

Our own crews repair roofing, insulation, drywall, paint and trim to finish the job.

Large tree fallen onto a house roof after a storm

Emergency Roof Tarping and Board-Up

When ice, a heavy snow load, high wind or a fallen tree opens up a roof, the priority is keeping the next storm out. Our crews tarp damaged roof sections and board up broken windows and openings to protect the building until permanent repairs can be made.

Most insurance policies expect you to take reasonable steps to prevent further damage after a loss, and emergency tarping is part of that. We photograph the damage before it is covered, so your adjuster can see exactly what happened. For wind, hail and tree damage, see our storm and impact damage service.

How to Prevent Ice Dams Next Winter

The lasting fix is a cold roof: keep heat in the house and out of the attic.

Seal Attic Air Leaks

Seal gaps around pot lights, plumbing stacks, the attic hatch and wall top plates.

Top Up the Insulation

Bring attic insulation up to current levels so heat stays in the living space.

Open the Vents

Keep soffit and roof vents clear so cold air can move under the roof deck.

Vent Fans Outside

Bathroom and kitchen fans should exhaust outdoors, never into the attic.

Rake the Lower Roof

Use a roof rake from the ground to pull snow off the lower few feet after big storms.

Clear the Eavestroughs

Clean out eavestroughs and downspouts before winter so meltwater can drain.

Heat cables treat the symptom, not the cause. They can help on a problem spot, but never chip at an ice dam with a hammer or axe: it damages the shingles and can cause a fall.

Is Ice Dam Damage Covered by Insurance?

Many Ontario home policies cover sudden water damage inside the home caused by an ice dam, such as stained ceilings, wet insulation and damaged drywall. The ice dam itself, the cost of removing the ice, and repairs to a roof that was already worn or poorly maintained are often not covered.

Report the leak early and take reasonable steps to limit the damage. We document the source of the water, the extent of the damage and the work needed, with photos and moisture readings, and we work directly with your adjuster.

Coverage varies. Check your policy or call your broker to confirm what yours includes.

DKI project manager documenting roof leak damage for an insurance claim
DKI truck at a home during an evening emergency call

Ice Dam and Roof Leak Repair Near You

We repair ice dam and roof leak damage across the snowbelt, in Barrie, Orillia, Oro-Medonte, Collingwood, Wasaga Beach, Midland and Penetanguishene, south to Innisfil and Bradford, and north through Muskoka to Gravenhurst, Bracebridge, Huntsville and Parry Sound.

Related services: water damage restoration, storm and impact damage, mould removal and frozen pipe and cottage water damage. Call 1-800-228-7739 any time.

DKI - Simcoe Muskoka Offers...

At DKI - Simcoe Muskoka, we know that dealing with property damage is overwhelming—that’s why our crews are ready to respond 24/7, every day of the year. With roots going back to 1961 and IICRC-certified technicians, we bring the knowledge, speed, and care needed to restore your home or business efficiently. From the moment you call, a dedicated Project Manager will guide you through the process, keeping you informed every step of the way. Our team is committed to delivering high-quality results while providing the compassion and support you need to get back on your feet as quickly as possible.

Quick Mobilization

24/7 emergency restoration and board-up services available 365 days a year.

Expertise

Fully trained and certified IICRC (Institute of Inspection, Cleaning and Restoration Certification) staff, backed by a company that has been building and restoring since 1961.

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Strong Communication

A project Manager assigned to your claim from start to finish, updating you throughout the process.

Quality Assurance

Making sure you are happy with the final result of the work done and standing behind the work we do.

Compassionate Team

We understand how hard the situation is and our team will do what we can to get you back to normal sooner.

Ice Dam and Roof Leak Questions

What homeowners ask us most about ice dams, roof leaks and winter water damage.

Should I remove an ice dam myself?

We don’t recommend it. Climbing onto an icy roof is dangerous, and chipping at the ice with a hammer, axe or shovel damages shingles and can make the leak worse. Pull snow off the lower part of the roof with a roof rake from the ground, and have the ice itself removed by a professional using low-pressure steam.

Why do I only get ice dams on part of my roof?

Ice dams form where heat escapes into the attic, so they cluster above warm spots such as pot lights, bathroom fans, the attic hatch, chimneys and poorly insulated sections. Valleys, dormers and low-slope sections that hold more snow are also prone.

Can an ice dam cause mould?

Yes. Water that soaks attic insulation, the roof deck or wall cavities can stay damp for weeks under the snow, and mould can follow. Wet insulation should be removed and the attic dried, with moisture readings to confirm it is dry before anything is closed up.

Does home insurance cover ice dam damage?

Interior water damage caused by an ice dam is covered by many Ontario home policies, but removing the ice and repairing a worn or poorly maintained roof often are not. Check with your broker. We document the damage with photos and moisture readings and work directly with your adjuster.

How quickly can you tarp a damaged roof?

We dispatch around the clock and give you a realistic arrival time when you call. Tarping is done only when it is safe to be on the roof; in high wind or freezing rain we protect the interior first and tarp as soon as conditions allow.

Do heat cables stop ice dams?

They can keep a channel open in a problem spot, such as over an entrance or along a valley, but they don’t fix the heat loss that causes the ice dam. Air sealing, insulation and attic ventilation are the long-term solution.

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Emergency Line

1-800-228-7739