Demolition Contractor in Ontario
Demolition covers a wide range of jobs, from tearing down an interior wall or gutting a kitchen before a renovation, to bringing down a house, barn, or commercial building, to clearing a site for new construction. Contractors in this category handle selective demolition (removing specific structures or materials while leaving the rest intact), full structural teardowns, concrete and asphalt removal, and the debris hauling and disposal that comes with all of it. Some also handle asbestos or hazardous material abatement, which needs its own certification and can't be skipped legally or safely.
Ontario has 298 businesses listed under this category, ranging from small crews doing interior strip-outs to larger outfits with excavators, skid steers, and dump trucks for full teardowns. That spread in size and specialty means the right fit depends on the job. A one-room gut job doesn't need the same contractor as a commercial building takedown.
What to check before hiring
- Proper insurance and WSIB coverage, since demolition carries real risk of injury and property damage.
- Municipal demolition permits pulled in your name or theirs, and confirmation they know local bylaws (some cities require tree protection, noise limits, or dust control plans).
- Asbestos testing before any pre-1990s building comes down, and licensed abatement if it's found.
- A clear plan for debris disposal or recycling, including where waste is going and who pays tipping fees.
- A written scope covering what's demolished, what's salvaged, and how the site is left (graded, backfilled, swept clean).
Our ranked guide to Ontario's best demolition contractors narrows the 298 listings down using a scoring system built on verified customer feedback, response consistency, and how contractors handle licensing and safety documentation. Read how we build those rankings on our methodology page.
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All demolition contractor, ranked by score and relevance
We found 454 businesses offering demolition contractor; 448 met the criteria for the scored directory. The order weighs each business's overall score by how much of its reviewed work is demolition contractor, so a lower-scored specialist can rank above a higher-scored generalist. Filter and sort below, or open the full map view.
When you submit a quote or contact form, we may share your enquiry with partner providers to carry out the work, and we may receive a referral fee. Our rankings and scores come from our published scoring method only and are never affected by referral fees.
Common questions about demolition contractor
- How much does demolition cost in Ontario?
- It depends heavily on scope. Interior demolition (stripping a kitchen or bathroom) can run a few hundred to a few thousand dollars, while tearing down a detached garage might land in the low thousands. Full house demolition typically runs from around $15,000 to $40,000 or more once permits, asbestos testing, and debris disposal are factored in. Get itemized quotes, since disposal and hauling fees are often the biggest hidden cost.
- Do I need a permit to demolish a building in Ontario?
- Yes, almost every municipality in Ontario requires a demolition permit before a structure comes down, even for smaller accessory buildings in some cities. Your contractor should either pull the permit for you or confirm you have one before work starts. Skipping this step can lead to fines and stop-work orders.
- What should I expect during a demolition project?
- Expect an initial site assessment, asbestos and hazardous material testing if the building is older, disconnection of utilities, the actual teardown or strip-out, debris sorting and hauling, and a final site cleanup or grading. Timelines range from a single day for interior work to one to two weeks for a full structure, depending on size and access.
- How do I judge the quality of a demolition contractor?
- Look at how clearly they explain the scope and disposal plan, whether they proactively raise asbestos testing without being asked, and whether their quote breaks out labor, hauling, and permit costs separately. Contractors who rush past these details or give a single vague lump sum are worth a second look before signing.