Chimney Services in Ontario
Chimney work covers a wider range than most homeowners expect. It includes masonry repair (repointing brick, replacing spalled or cracked units), crown and cap repair, flashing replacement where the chimney meets the roofline, flue liner installation or relining, WETT inspections for wood-burning appliances, chimney sweeping, and full rebuilds when a stack has deteriorated past the point of patching. Some of the 362 businesses listed in this category handle the whole scope, others specialize in one piece, such as liner installation or sweeping and inspection only.
Because a chimney sits at the intersection of the roof, the flue, and often an active fireplace or furnace vent, mistakes here create real risk: water intrusion into the attic, carbon monoxide backdraft, or chimney fires from creosote buildup. When you're comparing contractors, look for WETT certification (for wood-burning systems), proof of insurance, clear written estimates that separate masonry work from liner or flashing work, and photos of past jobs rather than stock images. A contractor who does a proper inspection before quoting, rather than pricing over the phone, is usually the safer bet.
Our ranked guide to Ontario's best chimney services pulls together the contractors in this category that consistently score well on the criteria that matter for this kind of work. If you want the full detail on how we weigh reviews, credentials, and track record, our methodology page explains the scoring behind every ranking on the site.
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All chimney services, ranked by score and relevance
We found 650 businesses offering chimney services; 43 met the criteria for the scored directory. The order weighs each business's overall score by how much of its reviewed work is chimney services, so a lower-scored specialist can rank above a higher-scored generalist. Filter and sort below, or open the full map view.
Enquiries you submit through our forms may be shared with partner providers who can carry out the work, and we may receive a referral fee. Our rankings and scores are based only on our published methodology and are not influenced by referral fees.
Common questions about chimney services
- How much does chimney repair typically cost in Ontario?
- Small repairs like flashing fixes or crown sealing often run a few hundred dollars, while repointing brickwork can range from roughly $1,000 to $3,000 depending on how much of the stack needs work. A full rebuild above the roofline can run several thousand dollars or more, since it involves scaffolding, new brick or block, and a new crown.
- How often should a chimney be inspected or swept?
- If you use a wood-burning fireplace or stove regularly, an annual inspection and sweep before heating season is the standard recommendation to clear creosote buildup and check the liner. Chimneys that vent a furnace or gas appliance still benefit from inspection every year or two, since liners and flashing degrade even without wood smoke.
- What should I expect during a chimney inspection?
- A proper inspection checks the exterior masonry for cracks or spalling, the crown and cap for water entry points, the flashing seal against the roof, and the interior flue for creosote, cracks, or blockages such as animal nests. A WETT-certified inspector will also confirm the system meets current clearance and venting standards if you're buying or selling a home with a wood-burning appliance.
- How can I tell if a chimney contractor does quality work?
- Ask for photos of completed masonry and liner jobs, confirm WETT certification if wood-burning work is involved, and check whether they carry liability insurance. A contractor who explains what they found during inspection and shows you the problem area, rather than just quoting a fixed price sight unseen, is generally more trustworthy.