Ontario and Quebec · since 2005
Asbestos Testing in Ontario & Quebec
Asbestos testing is a small sample of each suspect material, analyzed by an accredited third-party lab, with a written report that says yes or no and how much. The first material is $430 and each extra one is $250, plus tax, with lab results in 3 to 4 business days. If your home was built or last renovated before 1990, a ceiling, floor or pipe wrap could contain asbestos, and looking at it won’t tell you.
You’re about to cut, sand or demolish something, and you don’t know what’s in it. A test answers that before the dust spreads through the house. We don’t do asbestos abatement or removal, so our answer doesn’t depend on what happens next.
Since 2005 · 15,000+ inspections · IICRC certified inspectors
Asbestos testing at a glance
In one sentence: at an asbestos inspection, a certified inspector samples each suspect material, an accredited asbestos testing lab analyzes it under a microscope, and you get a written report naming the type of asbestos and the percentage.
Last updated: 3 November 2026
You can’t see asbestos, so only asbestos testing settles it
A textured ceiling from the 1970s might contain asbestos. The neighbour’s ceiling, put up the same year, might not. The two look the same, and only a lab microscope can tell them apart.
That matters because asbestos causes cancer. Health Canada says breathing in the fibres can cause mesothelioma, lung cancer and asbestosis, often decades later. It also says intact asbestos left alone poses no significant risk. The danger starts when someone cuts, drills or sands it.
These are the materials our inspectors sample most often in homes from before 1990:
- Drywall joint compound and tape: easy to miss, because the drywall itself is fine.
- Popcorn or stipple ceilings: they crumble easily, so they’re among the riskiest to scrape.
- Vinyl floor tile and the black mastic under it. We sample both layers.
- Vinyl sheet flooring: the asbestos is usually in the paper backing.
- Plaster and skim coats, common in older Ottawa and Montreal homes.
- Pipe and boiler wrap: the white wrap around basement pipes. It’s high-risk once it’s damaged.
- HVAC duct wrap and the canvas connectors at the registers.
- Vermiculite attic insulation: the gold-brown granules between the joists.
- Exterior stucco, siding and shingles, including asbestos-cement.
- Caulking and window glazing on mid-century homes.
But the 2018 ban didn’t remove the asbestos already in your walls
Canada banned making, importing and using asbestos in 2018. Plenty of people take that to mean the problem’s over. The ban covers new products. It doesn’t touch a ceiling installed 50 years ago, in a house, a school or an office.
Myth Asbestos is banned, so my house doesn’t have it.
Fact The 2018 ban covers what’s sold today. A ceiling from 1975 is still up there, and only a tested sample shows whether it contains asbestos.
Myth The material looks fine, so there’s no need to test.
Fact Condition matters for everyday risk, not for renovations. If you’re going to cut, sand or demolish it, the test comes before the tools.
Myth A positive result means we have to move out.
Fact A positive result is for planning. Often the safest move is to leave the material alone, mark where it is, and hire a qualified contractor if it ever has to come out.
So every asbestos test follows one plan: sample, lab, written report
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1
Day of the visit
The inspector finds the suspect materials
We walk the rooms your work will touch and agree with you on what to sample, so you only pay for samples you need.
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2
Day of the visit
Controlled sampling, one material at a time
A small piece is cut with clean tools, wetted to limit dust and sealed in a labelled container. Each sample is photographed and logged by location, material and quantity.
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3
3 to 4 business days
An accredited lab does the analysis
Samples travel under a signed chain of custody to a third-party lab. The lab uses polarized light microscopy for materials, and electron microscopy when a low result needs confirming, which takes longer.
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4
When results arrive
You get a clear written report
It names the asbestos type (chrysotile, amosite, crocidolite or another), the percentage in the material, and the next steps. Your contractor, insurer or buyer can use it too. See how our inspections work.
Tell us about your project and we’ll tell you what to sample.
Your question decides the asbestos test: material sample or air sample
The two tests answer different questions. Pick the wrong one and you’ve paid for an answer you didn’t need.
Material (bulk) sample
Does this material contain asbestos?
- Before a renovation, a demolition or a purchase
- Result given as a percentage of asbestos in the material
- $430 for the first, $250 for each extra material
Air sample
Are there fibres in the air I’m breathing?
- After removal work (clearance) or an accidental break
- Result given in fibres per cubic centimetre of air
- $450 for the first sample, $330 for each extra, on request
Our take: before renovating, it’s almost always the material sample. An air sample confirms an area is clean after removal, against a common clearance level of 0.01 fibres per cubic centimetre.
Either way, asbestos testing cost depends on the number of materials, not the size of the house
We charge per material, plus tax. The inspector’s visit, safe sampling, accredited lab analysis and the written report are all inside the price.
| Service | Price (CAD, plus tax) | What’s included | Best for |
|---|---|---|---|
| First material | $430 | Certified inspector’s visit, sampling, accredited lab analysis, written report | One suspect material: popcorn ceiling, floor tile, pipe wrap, joint compound |
| Each extra material | $250 | Another material sampled in the same visit and analyzed | Renovations that touch several materials |
| Vermiculite attic insulation | $550 | Attic sampling in a full protective suit and respirator, lab analysis, written report | Attics with loose-fill vermiculite, often sold as Zonolite |
| Asbestos air test | $450 first sample, $330 each extra | Air drawn through a filter cassette on site, fibre count at the lab, written report | Clearance after removal work, on request |
One material
A popcorn ceiling before you scrape it, for example.
Typical renovation
Three materials in one visit: a ceiling, a floor and a wall.
Larger survey
Six materials, for a whole basement or an interior demolition.
A 1960s house with four suspect materials means four or five samples. A pre-demolition survey uses the same per-material prices, so the total depends on how many materials the building has. Call 1-866-528-2897 and we’ll work out your total. For DIY kits versus a professional test and how Ontario and Quebec compare, read our guide to asbestos testing cost in Canada.
Whether you have to pay for asbestos testing depends on Ontario and Quebec rules
Ontario Regulation 278/05 makes a building owner have materials examined before arranging demolition, alteration or repair that’s likely to disturb them. A result of 0.5% or more asbestos by dry weight makes the material asbestos-containing under that rule.
Most homeowners aren’t told that the Ontario rule exempts an owner of a private home they or their family live in, and an owner of a building of up to four units with one lived in by the owner or family. Employers and workers on a job are still covered, so your contractor may ask for a result anyway.
In Quebec, the Safety Code for the construction industry requires a check for materials likely to contain asbestos before work that could raise asbestos dust, and the CNESST enforces it. Running an office or a shop? Our commercial testing page covers workplaces.
Even where no rule applies to you, a test makes sense in these cases:
- A home built or last renovated before 1990, before you cut, drill or sand a suspect material.
- An attic with vermiculite insulation.
- Water or fire damage to plaster, drywall or pipe wrap.
- Unexpected dust during a job that’s already started. Stop, ventilate to the outside, and test before you carry on.
- Buying an older home, so a surprise doesn’t turn up after closing.
Why a third-party lab matters. Our samples go to an accredited lab under a signed chain of custody. The analyst reading the sample has no stake in what happens next on your project.
Before you scrape a ceiling or lift a floor, we take a small piece and send it to the lab. That takes a few days. Cleaning up asbestos that’s already been spread through the house takes a lot longer.
Jesse Robertson
Senior Indoor Environmental Inspector · Certified Mold Inspector (CMI)
- Since 2005 testing homes in Ontario and Quebec
- 15,000+ inspections
- IICRC Certified
- IAC2 Certified
- IAQA corporate member
Even a clean report has limits: what an asbestos test can’t tell you
A test answers for the materials sampled, not for the whole house. If we test the living room ceiling, the report says nothing about the kitchen floor. That’s why we agree on the list of materials before we sample, based on what your work will touch.
A negative result on one sample of a big ceiling is a good sign, not a guarantee for every square metre, especially on a ceiling patched at different times. And a test doesn’t remove anything. If the result is positive and the work has to go ahead, a licensed asbestos abatement contractor takes it out (we don’t do abatement or removal ourselves), and we can come back for the clearance air test afterward.
We do asbestos testing across Ontario and Quebec
For local detail, see asbestos testing in Ottawa, asbestos testing in Toronto and asbestos testing in Montreal, including Laval, Longueuil, the West Island and the South Shore. We also test in Toronto, York Region and Durham, in Mississauga, Brampton and Caledon and in Oakville, Burlington and Hamilton. Worried about mold in the same room? We can run mold testing during the same visit.
Asbestos testing questions we hear most
You test a sample of the material, because nobody can confirm asbestos by looking. An inspector cuts a small piece of each suspect material, seals it and sends it to an accredited lab. The lab checks it under a microscope, and the written report says whether each material contains asbestos, what type and what percentage.
Asbestos doesn’t have a look you can rely on. It’s mixed into ceilings, tiles, plaster and pipe wrap, and those materials look the same with or without it. Age and material type tell you what to suspect. Only a lab result tells you what’s there, so treat anything from before 1990 as a question until it’s tested.
With us it’s $430 plus tax for the first material and $250 for each extra one, with the inspector’s visit, lab analysis and written report included. Three materials come to $930. Vermiculite attic insulation is $550, and an air test is $450 for the first sample and $330 for each extra. Our Ottawa asbestos testing visits use this same price list.
Lab results take 3 to 4 business days after sampling, and that’s the part to plan around. Rush analysis is available for an added fee. Electron microscopy, used to confirm a low result or for clearance samples, takes longer. The visit itself depends on how many materials we’re sampling, so book before your contractor’s start date.
The 3-5-7 rule sets the minimum samples for surfacing material such as sprayed or trowelled coatings. Under Ontario Regulation 278/05, that’s 3 samples for under 90 square metres, 5 for 90 to under 450, and 7 for 450 or more. Thermal insulation and other materials need 3, and a small patch needs 1.
For one intact floor tile, a mail-in kit at $30 to $120 per sample can be enough. For anything that crumbles (popcorn ceiling, pipe wrap, vermiculite), no, because taking the sample releases fibres into the air you breathe. A buyer, insurer or job site may also want a report with chain of custody. Our guide to home test kits covers the options.
Stop the work, leave the room, close it off and ventilate to the outside. Don’t use a regular vacuum, because it puts fibres back in the air. Bag the clothes you were wearing. One short exposure rarely causes immediate symptoms, but there’s no known safe level, so call 1-866-528-2897 before any cleanup. We’ll sample the material and test the air if needed.
About to open a wall or scrape a ceiling?
Test the material first. A certified inspector takes the sample, an accredited lab reads it, and you plan the job with a written answer in hand. We don’t do abatement or removal: we test, you decide.
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