Cornwall Air Quality & Mold Testing
IICRC-certified indoor air quality and mold testing in Cornwall, ON. With 20+ years of experience and over 15,000 inspections completed across Eastern Ontario, our IICRC-certified inspectors deliver lab-verified results, usually within 2 to 5 business days. Whether you suspect mold, asbestos, or a hidden air quality problem, we’ll find it and document it.
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Indoor air quality testing in Cornwall
The air inside Cornwall homes can contain pollutants you can’t see or smell: mold spores from basement dampness and asbestos fibers in older homes built before 1990. Cornwall’s St. Lawrence River climate means high summer humidity and harsh freeze-thaw cycles in winter. Both create conditions for hidden moisture damage that leads to mold. Our certified inspectors use calibrated equipment and accredited labs to identify exactly what’s in your air, document the source, and give you a clear written report you can act on.
Why choose us?
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IICRC Certified, IAQA Member. Our inspectors hold the industry’s most recognized credentials for indoor air quality and mold remediation. You’re not getting a general home inspector. You’re getting a specialist.
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20+ Years in Eastern Ontario. Over 15,000 inspections completed. We know Cornwall, Akwesasne, Long Sault, Lancaster, and the surrounding region, and how this climate affects indoor air.
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Fast Lab-Verified Results. Reports delivered in 2 to 5 business days from accredited Canadian labs. No vague verbal “you’re probably fine”. You get a written, defensible document.
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Transparent Pricing. Flat-rate inspection fees with no surprise add-ons. We’ll quote you on the phone before we book.
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Lab-Verified & Unbiased. An accredited lab analyzes every sample, not us, so the report has no upsell built into it. Buyers, sellers, landlords, and lawyers can trust our findings.
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Residential & Commercial. From single-family homes near Lamoureux Park to commercial buildings on Brookdale Avenue, we test properties of every size.
Cornwall, Ontario neighbourhoods we serve
Our team services properties across Cornwall and the surrounding region, including:
- Downtown Cornwall and the Le Village district
- Riverdale, Cornwall Centre, and the Brookdale corridor
- Glen Walter, Tyotown, Glendale, and Rosedale Terrace
- St. Andrews West, Long Sault, Ingleside, and Lancaster
- South Stormont, South Glengarry, and the United Counties area
We also serve nearby Akwesasne and the broader SDG region. If you’re in or near Cornwall, we can usually book you within the same week.
What do we test air for?
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Mold. Mold can be found anywhere and they thrive in moist, humid environments. Mold spores are very small and difficult to see. They can cause respiratory problems and allergic responses upon inhalation and can release toxic substances that may trigger reactions such as asthma attacks. To detect the presence of mold in the air quality, the individual needs to contact their local health department for advice on how to conduct a home or workplace test.
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Asbestos. Asbestos is a fibrous mineral that has been used widely as insulation and for fire-resistant clothing. It can also be found as a contaminant in building materials due to its ability to withstand heat. Asbestos is a carcinogen, which means it increases the risk of developing diseases, such as lung cancer. Air quality testing for asbestos focuses on the amount of asbestos fibers in the air and whether or not there is a risk for human exposure.
Mold Testing in Cornwall
Mold is the #1 reason Cornwall homeowners call us. The combination of St. Lawrence River humidity, basement flooding from spring snowmelt, and aging housing stock means moisture problems are common, and where there’s hidden moisture, there’s usually mold.
Our mold testing service covers:
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Air sampling: captures airborne mold spores using calibrated pumps. We compare indoor counts to an outdoor baseline to determine whether you have an active indoor mold source.
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Surface sampling: swab and tape-lift samples sent to an accredited lab for species identification (including Stachybotrys, the “black mold” you’ve heard about).
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Moisture mapping: thermal imaging and moisture meter readings to find hidden water intrusion in walls, ceilings, and subfloors before mold takes hold.
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Post-remediation verification: independent clearance testing after a remediation contractor finishes, so you know the job was done right.
Common Cornwall mold triggers we see: basement seepage from spring runoff, ice-dam leaks in older homes, bathroom exhaust fans venting into attics, and crawl space condensation. We’ll identify the source, not just the symptom.
Concerned about a specific area? Call 1-866-528-2897 for a free 5-minute phone consultation.
Asbestos Testing in Cornwall
Cornwall has a significant inventory of homes built before 1990, when asbestos was still common in vermiculite insulation, popcorn ceilings, vinyl floor tiles, pipe wrap, and drywall joint compound. If you’re planning a renovation, demolition, or buying an older home, you legally and ethically need to know.
Our asbestos testing service includes pre-renovation surveys, bulk material sampling, and air clearance testing, all analyzed at accredited Canadian laboratories using PLM and TEM methods.
What Cornwall Homeowners Say
Real feedback from recent Cornwall-area inspections
"We had a musty smell in the basement after spring flooding. The inspector arrived on time, explained everything, and had lab results back in two days. Turned out to be Stachybotrys. We would never have known. Professional and thorough."
"Bought a 1970s home near Lamoureux Park and wanted asbestos testing before renovating. They sampled the popcorn ceiling, vinyl tiles, and pipe wrap. Clear written report in 48 hours. Saved us from a disaster during demo."
"Used them for clearance testing after a remediation contractor finished our basement. Independent third party, which is exactly what we needed for the insurance claim. Clear, defensible report. Would hire again in a heartbeat."
Suspect Mold or Poor Air Quality in Your Cornwall Home?
Get a straight answer from an IICRC-certified inspector. No pressure, no upsell, just facts and a clear written report.
Mon to Sun: 24/7 · Response within 1 business day · Flat-rate quotes, no surprises
FAQ
Do you serve areas outside Cornwall?
Yes, we cover the entire SDG region including Long Sault, Ingleside, Morrisburg, Lancaster, Williamstown, Akwesasne, and as far west as Brockville and as far north as Alexandria. If you’re not sure if we cover your address, just call.
When should I have my Cornwall home tested for mold?
The most common triggers are: visible mold or staining, a musty smell that won’t go away, after any water leak or basement flooding (especially after spring snowmelt), unexplained allergy or asthma symptoms, before buying or selling a home, and after a remediation job to confirm it was done correctly.
Do you serve commercial properties in Cornwall?
Yes. We test offices, retail spaces, schools, daycares, healthcare facilities, and industrial buildings across Cornwall and the SDG region. Commercial inspections include written reports suitable for property managers, insurers, and Ministry of Labour compliance.
How long does it take to get results?
Lab-analyzed mold results typically arrive 2 to 5 business days after the inspection, and asbestos results in 3 to 4. For urgent real estate transactions, we can usually expedite. You’ll receive a written PDF report with sample results, photos, and clear recommendations.
How much does air quality testing cost in Cornwall?
Our indoor air quality test in Cornwall is $550 plus tax: the mould inspection, one indoor air sample, a free outdoor baseline sample, lab analysis and the written report. Each extra room sampled is $260, so most homes land between $550 and $1,070. Our mold testing cost guide shows what moves the price. We confirm the total on the phone before booking, no surprise charges. Commercial pricing is quoted per project.
Service Areas
- City Center
- Glen Walter
- Tyotown
- Glendale
- Grants Corners
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Long Sault
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Williamstown
- Rosedale Terrace
- Black River
- Harrisons Corners
- St Andrews West
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Ingleside
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Lancaster
Our certifications
