Bulk testing tells you whether a material contains asbestos. Air testing tells you whether fibre is in the air people are breathing. It is what you use after something was disturbed, and it is the independent clearance certificate that says an abatement is actually finished. We do the air testing; we do not do the abatement, which is the only way a clearance result means anything.
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(343) 353-2580Tell us the material and the year the building went up and we will quote a firm price.
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Tell us what needs sampling and we quote a firm price before we book. No abatement upsell.
When you need air testing, not bulk testing
The two answer different questions.
- Bulk sampling identifies a material: is this popcorn ceiling, this pipe wrap, this tile, asbestos? That is the pre-renovation question.
- Air sampling measures airborne fibre concentration in a space. That is the "is the air safe right now" question, and the "did the removal actually work" question.
You reach for air testing in three situations: after a disturbance (a material was cut, scraped, or damaged and you need to know if the air is contaminated), as clearance after abatement (before a contained area is reopened), and for reassurance in an occupied building where a condition is suspected.
Clearance testing and why independence matters
After a licensed abatement contractor finishes, the area is supposed to be verified clean before the containment comes down and people go back in. That verification is a clearance air test.
A clearance test done by the same company that did the removal is marking its own homework. An independent clearance certificate is the only version that means anything to a building owner, a tenant, or an insurer.
Because we do testing only and never bid abatement, our clearance result is exactly that independent check. That is the entire value: a pass from us is a real pass.
How air testing works
A calibrated pump draws a measured volume of air through a cassette over a set period. The sample is analyzed, commonly by phase-contrast microscopy (PCM) for a fibre count, or by transmission electron microscopy (TEM) when asbestos-specific confirmation is needed. The method is matched to the purpose, and clearance testing follows the appropriate protocol for reopening a contained area.
Air results are often faster than bulk, sometimes same-day to next-day, because a disturbance or a clearance usually cannot wait.
What it costs
Air and clearance testing runs roughly $400 to $800 per sampling event depending on the number of samples and the analysis method. Full breakdown on the cost page. For a clearance before reoccupying a space, or peace of mind after a disturbance, it is a small, defined cost.
Common questions
What is the difference between bulk and air testing?
Bulk testing identifies whether a material contains asbestos; air testing measures fibre concentration in the air. You use bulk before disturbing a material and air after a disturbance or an abatement.
What is a clearance test?
An independent air test that confirms a space is clean after asbestos abatement, before the containment is removed and people return. It should be done by someone other than the removal contractor to be credible.
How fast are air results?
Often same-day to next-day for a fibre count, because disturbances and clearances rarely can wait. Confirmed when you book.
How much does asbestos air testing cost in Ottawa?
Roughly $400 to $800 per sampling event, depending on sample count and analysis method.
Something was disturbed at home. Do I need air testing?
If a suspect material was damaged and you are worried about the air, yes, air testing answers it. First, close off the room, shut down HVAC that runs near it, and do not vacuum. Then call.
Can you clear an abatement another company did?
Yes, and that independence is the point. An outside clearance test is the credible one.
Rather just talk?
(343) 353-2580Tell us the material and the year the building went up and we will quote a firm price.
Call nowGet a straight answer
Tell us what needs sampling and we quote a firm price before we book. No abatement upsell.