Ottawa's Trusted Mold Inspection Specialists
Mold can grow anywhere moisture is present — behind drywall, under flooring, in attic insulation, or inside HVAC systems. Often it's invisible and goes undetected for months or years. If you've noticed a musty smell, experienced unexplained respiratory symptoms, or found visible mold in your Ottawa home, a professional mold inspection is the essential first step.
Property Inspection Network has been inspecting Ottawa and Eastern Ontario homes for over 30 years. Our certified inspectors use moisture meters, thermal imaging cameras, and air quality sampling to find mold and identify exactly where it's coming from.
Signs You May Need a Mold Inspection
Musty or earthy smell that won't go away
Visible dark spots or discolouration on walls, ceilings, or grout
Past or present water damage, leaks, or flooding
Family members experiencing unexplained allergies, asthma flare-ups, or respiratory symptoms
Buying a home and want confirmation before closing
Selling and want to disclose a clean bill of health
Basement, crawl space, or attic hasn't been properly inspected in years
Recently completed renovations that involved opening walls or disturbing materials
What our Ottawa Mold Inspection Includes
Visual inspection
Our inspector conducts a thorough walk-through of your entire home, paying particular attention to basements, bathrooms, kitchens, attics, crawl spaces, and any areas with known or suspected moisture intrusion.
Moisture mapping
Using professional-grade moisture meters and thermal imaging, we identify elevated moisture readings in walls, floors, and ceilings — even where no visible mold is present. Where moisture goes, mold often follows.
Air quality sampling
Air samples collected from inside your home and compared to an outdoor baseline can detect elevated mold spore counts before visible growth appears. This is particularly valuable for buyers who want objective data, or for homeowners who suspect hidden mold but can't find a visible source.
Written inspection report
You receive a detailed report with photos, moisture readings, findings, and our recommendations — whether that's monitoring, remediation, or follow-up testing.
Ottawa’s Mold Risk Factors
Ottawa's climate — cold winters, humid summers, and significant snowmelt — creates ideal conditions for moisture intrusion in homes. Common sources of mold in Ottawa homes include:
Ice damming — snow and ice backup under roofing in winter forces water into attics and wall cavities
Basement moisture — Ottawa's clay-heavy soil retains water, creating hydrostatic pressure against foundations
Bathroom and kitchen ventilation — inadequate exhaust fans allow moisture to accumulate behind tiles and inside walls
HVAC systems — improperly maintained ductwork and humidifiers can distribute mold spores throughout a home
Crawl spaces — common in Ottawa's older housing stock; often poorly sealed and prone to ground moisture
Mold inspection for home buyers in Ottawa
Mold is one of the most common — and most expensive — issues discovered after closing. A mold inspection is particularly recommended when:
- The home has a finished basement with limited visibility behind walls
- There is evidence of previous water damage or repairs
- The home has been vacant or minimally heated for an extended period
- The property is older (pre-1990s homes often have less effective moisture barriers)
Mold inspection for home sellers in Ottawa
Sellers who proactively test for mold are in a stronger negotiating position. Buyers are increasingly requesting mold testing as part of their home inspection conditions. Having a clean report in hand removes uncertainty and gives buyers confidence.
If mold is found, addressing it before listing is almost always less costly than a renegotiated price after the fact.
What happens if mold is found?
Our job is to find and document — not alarm. If mold is identified, your report will specify the location, apparent extent, and likely moisture source. We will recommend whether the situation warrants professional remediation, a DIY approach, or simply monitoring and improved ventilation.
We do not perform remediation ourselves, which means our assessment is completely objective — we have no financial interest in the outcome.
Book your Ottawa Mold Inspection
Property Inspection Network serves Ottawa and all of Eastern Ontario, including Gatineau, Kingston, Brockville, Pembroke, and surrounding communities. Whether you're buying, selling, or simply concerned about your home's air quality, our certified inspectors provide the honest, thorough assessment you need.
Frequently Asked Questions - Mold Inspection Ottawa
-
Mold inspection pricing depends on the scope. A visual mold inspection is often included in or bundled with a standard home inspection. Air sampling with lab analysis typically adds $200–$400. See our Ottawa home inspection cost guide for full pricing.
-
Yes — and it's recommended. A mold inspection can be bundled with your general home inspection as part of your offer conditions. See our home inspection checklist for what to arrange before your inspection date.
-
A mold inspection focuses specifically on visible growth and moisture sources. Air quality testing is broader — it uses air sampling to detect airborne mold spores, VOCs, and other contaminants even before visible mold appears. We often recommend both for a complete picture.
-
Yes. Disclosure is required in Ontario, and remediated mold is far less of a deal-breaker than undisclosed mold. A pre-listing inspection that includes mold assessment gives you time to address issues before they affect your sale.
Related Reading
Related Services
We Serve These Areas
Ottawa | Gatineau | Kingston | Brockville | Pembroke | Cornwall
Property Inspection Network | Ottawa & Eastern Ontario | Licensed & Insured | 30+ Years of Experience