Ontario and Quebec, since 2011
Mold Inspection and Removal in Ottawa-Gatineau and Montreal
Certified inspectors, laboratory-backed results, and a written report you can hand to an insurer, a landlord, or a buyer. Same-day emergency response available across both provinces.
Last updated: July 30, 2026
Straight answer
What a mold inspection actually gets you
A professional mold inspection finds where mold is growing, what is feeding it, and how far it has spread. We combine a full visual assessment with moisture meters and thermal imaging, then take air or surface samples when the situation calls for it. Samples go to an accredited third-party laboratory, not an in-house guess.
You get a written report with photos, moisture readings, lab results, and a remediation plan. Residential inspections usually take 2 to 4 hours, and lab results come back in 24 to 48 hours. If you are dealing with flooding or a burst pipe, we respond within 2 to 4 hours across Ontario and Quebec.
| Services | Mold inspection, testing, removal, water damage restoration |
|---|---|
| Coverage | Ottawa, Gatineau, Montreal, Laval, Kingston, Kanata, Cornwall, Carleton Place, Brockville, Belleville |
| Ontario | 613-701-9893 |
| Quebec | 514-700-6838 |
| Emergency response | 2 to 4 hours, available 24/7 |
| Lab turnaround | 24 to 48 hours, accredited third-party lab |
| Pricing | See the Canadian cost guide |
What we do
Four services, one accountable team
Most jobs start with an inspection and stop there, because there is nothing to remove. When there is, the same team that found the problem handles the cleanup and verifies the result.
Mold inspection
A room-by-room assessment of the areas mold actually favours: basements, attics, crawl spaces, bathrooms, and anywhere water has moved through the building. We read moisture behind finishes rather than guessing from what is visible.
- Full visual assessment plus moisture mapping
- Thermal imaging to find water behind walls and ceilings
- Written report with photos and a remediation plan
- Residential from $299, commercial from $799
Mold testing and lab analysis
Air and surface sampling that identifies the species and concentration, compared against an outdoor control sample so the numbers mean something. Every sample goes to an accredited third-party laboratory.
- Air sampling with an outdoor baseline for comparison
- Surface and tape-lift sampling for visible growth
- Species identification and spore counts
- Results in 24 to 48 hours
Mold removal and remediation
Containment first, then removal, then verification. We seal the work area under negative pressure so spores do not travel into clean rooms, and we fix the moisture source. Removing mold without fixing the water is how it comes back.
- Sealed containment with negative air pressure
- HEPA filtration and safe disposal of contaminated material
- Moisture source corrected, not just covered
- Post-remediation verification sampling
before anyone visits
Free virtual mold inspection
Send photos of what you are seeing and talk it through with a certified inspector. Plenty of people find out they have a cleaning problem rather than a mold problem, and that answer costs nothing.
- Book online, no visit required to start
- Certified inspector reviews your photos
- Honest read on whether you need testing at all
- Available across Ontario and Quebec
How it works
From first call to clean air
The same sequence runs on every inspection, from a single room to a full commercial building.
Book and describe
Call or book online. Send photos if you have them, and we will tell you whether an inspection is even warranted.
Inspect and measure
Visual assessment, moisture readings, and thermal imaging to locate water behind finishes.
Sample and analyze
Air or surface samples go to an accredited lab. Results back in 24 to 48 hours.
Report and resolve
A written report with photos and readings, plus a remediation plan and a quote if removal is needed.
Why homeowners call us
What you get that a general contractor cannot offer
Mold work sits between building science and health. We hold certifications in both, and we do not sell you remediation we cannot justify with data.
Certified inspectors
Eight industry certifications including IICRC, NORMI, InterNACHI, and CMI. Verify any of them before you book.
Independent lab results
Samples go to an accredited third-party laboratory. We do not grade our own homework.
Reports that hold up
Photos, moisture readings, and lab data in a document an insurer, landlord, or buyer will accept.
2 to 4 hour emergency response
Flooding, a burst pipe, or a sewage backup does not wait. Neither do we, 24 hours a day.
Price match guarantee
Bring us a written quote from a comparable certified provider and we will match it.
Service in English and French
Inspectors working across Ontario and Quebec, with reporting in the language you need.
In their words
Rated 5.0 from 9 Google reviews
Verified reviews from clients across Ontario and Quebec.
I was really hesitant to call a mold removal company, but I’m so glad I did. Mold Inspection Gatineau came to my house and did a thorough inspection.
Mr. Andrey spent half an hour explaining how moisture inside affects air quality.
Mold Inspection Kingston was amazing! They were able to help me get rid of the mold in my drywall quickly and easily.
Where we work
Ontario and Quebec coverage
We are a service-area business, so our inspectors come to you. Pick your city for local detail, or call the number for your province.
Ontario 613-701-9893
Ottawa and the eastern Ontario corridor.
Credentials
Certified, not self-declared
Our team holds certifications from the recognized bodies in mold inspection, remediation, and water damage restoration. Every one of them can be verified independently.
Related testing
Air quality testing alongside your inspection
Mold is one of several things that degrade indoor air. When we sample for spores we can also assess ventilation, humidity control, and the conditions that let mold return after remediation. Several clients book an indoor air quality assessment at the same visit, which saves a second appointment.
If humidity is the underlying problem, fixing the moisture usually matters more than the cleanup itself. Our inspectors will tell you which one you are actually dealing with.
How air sampling works| Musty smell | Musty smell in the house |
|---|---|
| Basement damp | Basement mold |
| After a leak | Water damage and mold |
| Health symptoms | Mold allergies and symptoms |
| Renting | Mold inspection for renters |
| Buying a home | Inspections for home buyers |
Common questions
Mold inspection FAQs
How much does a mold inspection cost in Canada?
Residential inspections start at $299 and commercial inspections start at $799, with the final figure depending on property size and how many samples are needed. Remediation is priced separately once we know the extent. Our Canadian cost guide breaks down what drives the price.
How long does a mold inspection take?
Two to four hours for a typical home, four to eight hours for a commercial property. Laboratory results add another 24 to 48 hours. You get preliminary findings from the inspector before they leave.
Do I need testing, or is a visual inspection enough?
If mold is visible and the cause is obvious, sampling often adds little. Testing earns its keep when mold is suspected but hidden, when occupants have symptoms without visible growth, or when you need documentation for an insurer or a legal matter. We will tell you which situation you are in rather than defaulting to samples.
Can I test for mold myself with a store-bought kit?
Home kits show that spores exist, which is true in every building on earth. What they cannot do is tell you the concentration relative to outdoor air, identify the species reliably, or locate the moisture source. Our DIY inspection guide covers what you can reasonably check yourself first.
Is black mold actually dangerous?
Stachybotrys chartarum deserves attention, though colour alone does not identify a species and plenty of harmless growth looks black. What matters is the amount, the exposure, and the health of the people in the building. See health risks of black mold for the detail.
Which areas do you serve?
Ontario and Quebec, centred on Ottawa, Gatineau, Montreal, and Laval, and extending to Kingston, Kanata, Cornwall, Carleton Place, Brockville, and Belleville. Call 613-701-9893 in Ontario or 514-700-6838 in Quebec to confirm availability at your address.
How fast can you come out in an emergency?
Within 2 to 4 hours for flooding, burst pipes, or sewage backups, 24 hours a day. Mold can establish on wet material in 24 to 48 hours, so the response window genuinely matters.
Not sure whether it is mold?
Start with a free virtual assessment. Send photos, talk to a certified inspector, and find out whether you need an inspection at all. No cost and no obligation.
Certified inspectors serving Ontario and Quebec. Emergency response available 24/7.