Asbestos & Hazmat Abatement in Ontario
Asbestos and hazmat abatement covers the removal or containment of hazardous materials before a building is demolished, renovated, or repaired. That includes asbestos insulation, tiles, and drywall compound, along with mould, lead paint, PCBs in old ballasts, and contaminated soil. In Ontario, this work is governed by the Occupational Health and Safety Act and Regulation 278/05, which sets out how Type 1, 2, and 3 asbestos operations must be handled, from simple wetting and bagging up to full containment with negative-air pressure and licensed disposal.
We list 92 contractors in this category across Ontario, ranging from small crews handling residential tile and popcorn ceiling removal to larger outfits equipped for industrial containment jobs and multi-unit buildings.
What to check before hiring
- A current WSIB clearance certificate and proof of liability insurance
- Documented asbestos worker training under Ontario's regulations, not just a general demolition license
- A written scope that names the disposal facility and manifests the waste
- Air clearance testing by a third party after containment work, not the contractor grading their own job
Our scoring weighs licensing, insurance, verified reviews, response time, and how consistently a contractor documents its work. See the full ranked list in our best demolition contractors guide, and read how we score firms on the methodology page.
Find asbestos & hazmat abatement for your project
Free, no obligation. Describe your demolition job and we'll connect you with suitable contractors.
All asbestos & hazmat abatement, ranked by score and relevance
157 businesses. The order weighs each business's overall score by how much of its reviewed work is asbestos & hazmat abatement, 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 asbestos & hazmat abatement
- How much does asbestos abatement cost in Ontario?
- Small residential jobs like removing asbestos floor tile or a section of pipe insulation often run a few hundred to a couple thousand dollars. Full basement or attic containment work, with negative-air setups and disposal fees, can run several thousand and up depending on the square footage and how contaminated the material is.
- How do I know if my house has asbestos?
- Homes built or renovated before the early 1990s are the main risk, especially vermiculite insulation, popcorn ceilings, vinyl floor tile, and pipe wrap. A contractor or lab can take a sample and test it. Never sand, cut, or disturb suspect material before testing.
- What should I expect during an abatement job?
- Expect the area sealed off with plastic sheeting, negative-air machines running to keep dust from spreading, workers in respirators and disposable suits, and bagged waste taken to a licensed disposal site. Larger jobs finish with a third-party air clearance test before you're allowed back in.
- How do I judge the quality of an abatement contractor?
- Ask for their asbestos worker training records, WSIB clearance, and examples of waste manifests from past jobs. A contractor who won't put the disposal facility and clearance testing in writing is a red flag, regardless of price.
Guides to choosing asbestos & hazmat abatement
- What asbestos abatement costs in Ontario and what drives the price
Typical price ranges for asbestos abatement in Ontario, the factors that push a quote up or down, and how to budget before a demolition or renovation.
- Hidden hazards in older Ontario homes before you demolish or renovate
The materials most likely to hide in pre-1990 Ontario homes, why they matter before demolition or a gut renovation, and how testing actually works.