Mold Inspection and Removal Across Ontario and Quebec
We’ve been finding and fixing mold problems in Canadian homes and buildings since 2005. Certified inspectors, CALA-accredited lab results, and one team accountable from the first walkthrough to the final clearance test.
Mold Inspection Canada is a mold inspection, testing, and removal company working across Ontario and Quebec since 2005. Our inspectors hold eight industry certifications and memberships, samples go to CALA-accredited laboratories, and every job ends with a written report you can hand to an insurer, a landlord, or a buyer. We cover Ottawa, Gatineau, Montreal, Laval, Kingston, Cornwall, Belleville, Brockville, Kanata, and Carleton Place, with emergency response available 24/7.
Last updated: August 21, 2026
| Company facts | Details |
|---|---|
| In business since | 2005, more than 21 years |
| Services | Mold inspection, mold testing, mold removal and remediation, free virtual inspections |
| Provinces served | Ontario and Quebec |
| Certifications | Eight industry certifications and memberships |
| Laboratory analysis | CALA-accredited laboratories, 24 to 48 hour turnaround |
| Phone | 613-701-9893 in Ontario, 514-700-6838 in Quebec |
| Emergency response | Within 2 to 4 hours, available 24/7 |
| Pricing | Published on our mold inspection service page |
What two decades of Canadian buildings taught us
We started in 2005, back when most homeowners had never heard the phrase “air sampling” and mold was something you scrubbed with bleach and forgot about.
A lot has changed since then. Standards tightened. Insurers started asking for documentation instead of taking a contractor’s word. Testing got better. What hasn’t changed is the thing that brings most people to us: a smell that won’t go away, a stain that keeps coming back, or a real estate deal that suddenly depends on what’s behind a basement wall.
Canadian buildings fail in Canadian ways. Freeze-thaw cycles crack foundations. Ice dams push water under shingles and into attic insulation. Spring melt raises the water table until it finds the weakest point in a basement slab. Homes built tight for winter trap the moisture that mold needs. We’ve spent more than 21 years learning where those failures show up, which is why our inspectors check the places a general contractor walks past.
8,000+
Clients served across Ontario and Quebec.
17,000+
Mold inspections completed.
6,000+
Removal and remediation projects.
21+
Years in business, since 2005.
What we do
We inspect, we test, and we remove. Most companies do one or two of these. Doing all three is the point.
When one team handles diagnosis and remediation, nothing gets lost in the handoff. The inspector who found the moisture source briefs the crew that fixes it, and the same standard applies to both. You get one company to hold accountable rather than two pointing at each other.
Mold Inspection
A full walkthrough with moisture meters and thermal imaging to find where water is getting in and what it has damaged. Residential and commercial.
See mold inspectionMold Testing
Air and surface sampling analyzed by CALA-accredited laboratories, so the species and spore counts in your report come from an independent third party.
See mold testingMold Removal
Containment, HEPA filtration, safe removal of affected material, and clearance testing to confirm the work actually succeeded.
See mold removalFree Virtual Inspection
Send photos and talk to an inspector before you book anything. Sometimes the answer is that you don’t need us yet.
Start a free virtual inspectionWe don’t grade our own homework. Samples go to CALA-accredited laboratories that have no stake in what happens next, and their findings are what drive the recommendation in your report. If testing shows you don’t have a mold problem, that’s what the report says.
How we work
Every inspection follows the same six-phase process, whether it’s a one-bedroom condo or a warehouse.
Understand the problem
We start with what you’ve noticed: the smell, the stain, the symptoms, the leak history. That shapes where we look.
Find the moisture
Moisture meters and thermal imaging trace water to its source. Mold is a symptom, and treating it without fixing the water means it returns.
Sample and verify
Air and surface samples go to an accredited lab so the conclusion rests on data, not a judgment call made in your hallway.
Report in plain language
You get photos, readings, lab results, and a written recommendation that holds up with an insurer or a buyer.
Remediate if needed
Containment, HEPA filtration, and safe removal of affected material, following the IICRC S520 standard.
Confirm it worked
Post-remediation clearance testing proves the air is clean before we close the job.
See our full inspection process, step by step
Why containment matters
Disturbing mold without containment is how a problem in one room becomes a problem in four. Cutting into affected drywall releases spores into the air, and normal air movement carries them through the rest of the building.
So before any material comes out, we seal the work area in poly sheeting and run negative air pressure through HEPA filtration. Air flows into the containment and out through the filter, never the other way. It is slower and it costs more in setup, and it is the difference between fixing one room and contaminating a house.
The same logic drives the clearance test at the end. Containment keeps the rest of the building clean during the work, and testing afterward proves the work area itself came back clean.
Credentials and accountability
Mold inspection isn’t a licensed trade in most of Canada, so certifications are how you tell a trained inspector from someone with a business card.
Our team holds eight industry certifications and memberships, including credentials from the IICRC, InterNACHI, NORMI, and the Professional Mold Inspection Institute, plus membership in NAMRI and NAMP. We list every one with a link to the issuing body so you can read what it requires rather than taking our word for it.
Our inspections follow the IICRC S520 standard for mold remediation, and we work to guidance from Health Canada and CMHC on indoor air quality and moisture in Canadian housing.
Where we work
Two provinces, two phone numbers, one standard of work.
We serve Ontario and Quebec, with inspectors based across the Ottawa-Gatineau region, the Montreal area, and eastern Ontario. Call 613-701-9893 in Ontario or 514-700-6838 in Quebec. Emergency response runs 24/7, typically within two to four hours.
Ontario
Ottawa, Kanata, Kingston, Cornwall, Belleville, Brockville, and Carleton Place.
Not on the list? We cover a wider area than the pages above. See all service areas or call and ask.
How we handle the hard conversations
Mold work sits on top of some genuinely stressful situations: a sale that might fall through, a tenant dispute, a child with asthma, an insurance claim that hinges on cause. We can’t make those simple, but we can make sure you know exactly what you’re dealing with.
That means telling you when the problem is smaller than you feared, which happens more often than people expect. It means explaining what a spore count actually indicates rather than leaving you to interpret a lab sheet. And it means putting the findings in writing, with photos and readings attached, so you have something to show a third party who wasn’t standing in the room.
What we promise
- Findings backed by moisture readings and accredited lab results
- A written report you can hand to an insurer, landlord, or buyer
- Clearance testing after remediation to confirm the work succeeded
- A straight answer when testing shows you don’t need remediation
What we won’t do
- Quote remediation before we know where the water is coming from
- Rely on a visual guess when a sample would settle it
- Hand you a lab sheet without explaining what it means
- Close a removal job without proving the air is clean
Common questions about our company
How long has Mold Inspection Canada been in business?
Since 2005, which is more than 21 years. In that time we’ve completed over 17,000 mold inspections and 6,000 removal projects for more than 8,000 clients across Ontario and Quebec.
Do you do mold removal, or only inspection and testing?
We do all three. Inspection finds the problem, testing confirms what it is through an accredited lab, and our remediation team removes it and verifies the result with clearance testing. One team is accountable from start to finish.
Are your inspectors certified?
Yes. Our team holds eight industry certifications and memberships, including IICRC, InterNACHI, NORMI, and Professional Mold Inspection Institute credentials. Every one is listed on our certifications page with a link to the issuing body.
Which laboratory analyzes the samples?
Samples go to CALA-accredited laboratories, which are independent of us. Results typically come back within 24 to 48 hours and appear in full in your written report.
What areas do you serve?
Ontario and Quebec, including Ottawa, Gatineau, Montreal, Laval, Kingston, Cornwall, Belleville, Brockville, Kanata, and Carleton Place. Call 613-701-9893 in Ontario or 514-700-6838 in Quebec.
How much does a mold inspection cost?
Current pricing for each service is published on our mold inspection page. For a sense of what remediation costs in Canada, see our mold removal cost guide.
Can you come out in an emergency?
Yes. Emergency response is available 24/7 across both provinces, typically within two to four hours.
What if I’m not sure I need an inspection?
Start with a free virtual inspection. Send photos, talk to an inspector, and get an honest read on whether an on-site visit is worth your money.
Talk to a certified inspector
Tell us what you’re seeing or smelling and we’ll tell you what it likely means. Start with a free virtual inspection or call us directly.