De-Icing Cable Installation in Toronto, Mississauga & the GTA

Century Aluminum installs de-icing cables for homeowners across Toronto and the GTA dealing with recurring ice dams that cause water backup, eavestrough damage, and interior leaks. Serving Toronto, Mississauga, Oakville & the GTA. Free estimates available.

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    What Does Our De-Icing Cable Service Include?

    De-icing cables create a heated path along the roof edge, through the eavestrough, and down the downspout so meltwater can drain freely rather than refreeze into an ice dam.

    Roof Edge Cable Installation

    We install de-icing cable in a zigzag pattern along the roof edge where ice dams most commonly form — just above the eave line, over the overhang, and into the gutter below. The system uses low-wattage resistance cable to maintain a clear drainage path during freezing conditions.

    Eavestrough and Downspout Cable Installation

    Ice forming inside the eavestrough and blocking the downspout is as damaging as ice on the roof itself. We run cable through the full length of the gutter channel and thread it down through the downspout to ground level, ensuring the entire drainage path from roof edge to discharge point stays clear.

    Problem Area Targeting

    Some roofs have specific sections that ice dams more severely due to shading, roof pitch, valley configuration, or heat loss patterns from the attic below. We assess your roof before installation and target cable placement at the areas most likely to cause problems, rather than cabling the full perimeter unnecessarily.

    Electrical Connection

    De-icing cables require a properly grounded outdoor electrical outlet. We route and position the system for connection and coordinate with the homeowner or electrician where required.

    Century Aluminum - De-Icing Cable Installers Serving Toronto, Mississauga & the GTA

    Family-owned, 15+ years installing eavestrough and roofline systems across Toronto, Mississauga, Oakville, and the GTA. De-icing cables are a natural extension of the eavestrough work we do every day. We understand where ice dams form and why, and we install cable where it will actually prevent the problem rather than guessing at coverage.

    Exterior Work Done Properly — No Shortcuts, No Guesswork.

    De-icing cable installation requires careful routing along your roofline and through your eavestrough system. Improper installation creates new problems instead of solving old ones.

    • Family Owned and Operated Since 2011 A local family business that understands how Ontario winters affect eavestrough systems — and installs de-icing solutions that actually work.
    • 630+ Verified Homeowner Reviews Over 630 verified reviews from GTA homeowners who rely on us for exterior services that perform through every season, including winter.
    • 15+ HomeStars Best of Awards Recognized by HomeStars for professional exterior work across every area of eavestrough and roofline service.
    • Thousands of Exterior Projects Completed Across the GTA Our experience with GTA winter conditions means we route and install de-icing cables for maximum effectiveness on every home.
    • Experienced In-House Installation Crew All de-icing cable work is completed by our own trained installers who know your eavestrough system inside and out.
    • Fully Insured and WSIB Covered Every de-icing installation is fully covered under our insurance and WSIB policy, protecting your property throughout.
    • Alu-Rex Certified Installer We often pair de-icing cable installs with Alu-Rex gutter protection, reducing ice dam risk from both directions.
    • Working at Heights Certified Installers Certified under Ontario safety standards for roofline access, required for safe de-icing cable installation on any home.
    • Installation Based on Proven Roofline Practices
      Cable placement follows proper spacing, fastening, and routing methods to ensure safe operation and long-term performance without damaging roofing materials.
    Homestars 5 Star e1777469453360

    De-Icing Cable Services in Toronto, Mississauga & the GTA

    Ice dams form every winter on Toronto homes where heat escapes through the roof and refreezes at the cold eave edge. A properly installed de-icing system prevents the cycle before it starts.

    Why Choose Century Aluminum for De-Icing Cable Installation?

    We install de-icing cables as part of a full roofline assessment – not as a standalone product drop. We identify where your roof is most vulnerable to ice dam formation, run cable along the roof, eavestrough and downspout as a complete drainage path, and connect the system correctly to a grounded supply.

    Cable routed through eavestrough and downspout, not just the roof edge

    Problem areas assessed and targeted before installation begins

    Signs Your Home Needs De-Icing Cables

    • Ice dams forming repeatedly at the same roof sections: A persistent pattern means your roof geometry or insulation creates a consistent freeze point at the eave edge.
    • Icicles hanging from the eavestrough every winter: Large icicle formation indicates water is flowing off the roof, freezing in or above the gutter, and accumulating rather than draining.
    • Water staining on interior ceilings or walls near the eaves: Ice dam backup has pushed water under shingles and into the roof structure.
    • Eavestroughs pulling away or deforming under ice weight: Heavy ice buildup inside the gutter is stressing the brackets and fascia beyond their design load
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    Looking for Another Exterior Service for Your Toronto Home?

    Eavestrough Replacement

    A properly installed eavestrough system works with your de-icing cables to drain meltwater away from the foundation.

    Leafguard / Gutter Protection

    Keep debris out of your eavestroughs so your de-icing cables have a clear path to drain through.

    Soffit & Fascia

    Proper attic ventilation from well-installed soffit reduces the heat loss that causes ice dams in the first place.

    Frequently Asked Questions About De-Icing Cables in Toronto

    What are de-icing cables and how do they prevent ice dams?

    De-icing cables are electric resistance heating cables installed along the roof edge, inside the eavestrough, and through the downspout. They generate heat at 5 watts per linear foot to keep a drainage path clear so meltwater flows off the roof rather than refreezing into an ice dam at the eave.

    Operating at 5 watts per linear foot, a typical residential installation runs at very low cost per day. A 30-metre system uses roughly the same electricity as a few light bulbs over a full day of operation.

    No, when installed correctly. Cables are clipped to the shingle surface with manufacturer-specified clips, not fastened through the shingles. Installation should be done at temperatures between 10 and 27 degrees Celsius to avoid working with brittle cold shingles or soft warm shingles. We assess conditions before installing.

    Yes, and they should always be run through the downspout as part of a complete installation. An ice dam that forms in a blocked downspout after the eavestrough has been cleared causes the same backup problem. We route cable from the roof edge through the full eavestrough run and down the downspout to the discharge point.

    Yes. Century Aluminum serves residential and commercial properties throughout the GTA, including Mississauga, Oakville, Brampton, and surrounding communities. Contact us for a free estimate.

    Stop Ice Dams Before They Start.

    A properly installed de-icing system protects your roof, eavestrough, and interior from winter water damage at low operating cost. Call Century Aluminum today or fill out our form and we’ll get back to you within one business day.

    Service Areas

    We provide professional de-icing cable installation across residential neighborhoods in Toronto and the Greater Toronto Area. Our team focuses on homes where recurring ice dam formation causes roofline and drainage issues during winter.