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Visual and moisture-source investigation

Mold and air quality inspection in
Montreal

Our investigation focuses first on visible conditions, moisture sources, ventilation and building defects related to indoor air quality. Laboratory sampling can be added when confirmation or documentation is useful.

Scope of our investigation The investigation is visual and non-invasive. It documents the visible and accessible condition of the building, observable moisture sources and conditions related to indoor air quality. It is not a medical diagnosis. The investigation does not certify that a property is mold-free or safe for health. For health symptoms, consult a qualified healthcare professional. Laboratory sampling is offered as a complement when confirmation or documentation is useful; results reflect only the sample collected, at the time and location of collection.
Three service levels

Investigate, sample,
verify.

Identifying the moisture source comes first. Laboratory sampling is offered as a complement when useful, and we also offer post-remediation review after a third-party contractor's work. We serve Montreal, Laval and the South Shore. Our thermal imaging service can help identify temperature patterns that may suggest hidden moisture.

🔍
Mold & moisture investigation
Visual inspection, moisture readings, ventilation observations, thermal imaging where useful, source analysis and photos. Practical recommendations.
🧪
Lab sampling add-on (when warranted)
Available as an add-on when confirmation or documentation is useful. Surface or air samples submitted to a qualified laboratory when applicable, with written interpretation.
✅
Post-remediation review
Independent visual and moisture review after remediation, with sampling available when appropriate.
What we investigate

A moisture-source-first
approach.

The investigation focuses on visible conditions, accessible moisture sources, and building defects that may contribute to mold-like growth. Laboratory sampling can be added when needed.

✓Visible conditions — Visible mold-like growth, water stains, discolouration and moisture signs in accessible areas
✓Moisture readings — Hygrometer and moisture-meter readings on walls, floors and ceilings
✓Accessible moisture sources — Infiltrations, condensation, plumbing issues and observable building defects
✓Ventilation and HVAC — Observations on ventilation, ambient humidity and indoor air-quality contribution
✓Accessible basement and crawlspace — Risk zones accessible at the time of visit
✓Bathroom, kitchen and windows — Joints, caulking, condensation and local ventilation
✓FLIR thermal imaging (when useful) — Helps identify temperature patterns that may suggest hidden moisture, non-invasive
✓Surface sampling (when warranted) — Swab or tape lift submitted to a qualified laboratory when applicable
✓Air sampling (when warranted) — Spore-trap cassettes with outdoor reference sample, when a specific question justifies it
✓Documented limitations — Inaccessible areas and limiting conditions noted in the report
Our process

4 steps to a
rigorous investigation.

1
Consultation
Describe your situation: odours, water damage, ventilation, visible conditions. We determine the appropriate approach.
2
On-site investigation
Visual inspection, moisture readings, ventilation observations and thermal imaging when useful. Duration 1 to 3 hours depending on scope.
3
Laboratory sampling (when warranted)
If justified, surface or air samples submitted to a qualified laboratory when applicable. Results in 3 to 5 business days.
4
Report & recommendations
Report with field observations, moisture-source analysis, laboratory results where applicable, interpretation, and practical corrective recommendations.
Transparent pricing

Three service
levels.

Custom-quoted based on the service level required and the scope of investigation. Contact us for a quote tailored to your situation.

🔍
Mold & moisture investigation
Visual inspection, moisture readings, ventilation observations, source analysis, photos and practical recommendations.
Custom quote
🧪
Investigation + laboratory sampling
The full investigation plus surface or air samples submitted to a qualified laboratory when applicable, with written interpretation.
Custom quote
✅
Post-remediation review
Independent visual and moisture review after a third-party contractor's work, with sampling available when appropriate.
Custom quote
FAQ

Frequently asked questions about
mold and air quality.

Everything you need to know about mold testing and indoor air quality in Montreal.

How do I know if I have a moisture or mold problem?+
Common indicators include a musty odour, stains on walls or ceilings, excessive condensation, and a history of water damage or flooding. The investigation focuses on identifying the observable moisture source.
Is air testing always necessary?+
No. In many situations, visual identification of the moisture source and building conditions is more useful than sampling. Laboratory sampling is added when confirmation or documentation is useful.
Does the investigation diagnose health problems?+
No. The investigation documents the visible and accessible conditions of the building and indoor air. For health symptoms, consult a qualified healthcare professional.
How much does an investigation cost?+
The rate is custom-quoted based on the scope of the investigation, number of zones, whether laboratory sampling is needed, and the area to cover. Contact us for a quote tailored to your situation.
What is the difference between the investigation and sampling?+
The investigation documents visible conditions, moisture sources and building defects. Laboratory sampling (surface or air) adds analytical confirmation when useful; results reflect only the sample collected, at the time and location of collection.
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Book now

Concerned about mold or
air quality?

Available 7 days a week. Visual investigation first, laboratory sampling when warranted. InterNACHI certified · IBC Network.

📞 (514) 802-7215Request a quote →
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