Contact
Tell us what's going on
We'll reply with next steps and schedule options
Response time
Urgent requests: Same business day
Non-urgent: within 24 hours
Service area
Greater Montreal Region
Information
Description of the situation and
photos if possible
Humidity & Suspected Mold
Humidity is a growing issue that can damage materials, worsen odours and dust mites, and lead to suspected mold. Puritas investigates on site to identify moisture and airflow drivers and deliver a clear report with actionable next steps.
What we investigate
We follow humidity and suspected mold by combining visible building clues with targeted measurements to distinguish condensation from leaks, infiltration, or hidden moisture, then deliver a clear, evidence-based summary with practical next steps.
Moisture conditions
RH and temperature (hygrometer), moisture meter readings, and where condensation is most likely.
Visible building signs
Water staining or discolouration, peeling, swelling, efflorescence, and material changes that point to moisture history
Thermal patterns
Thermography when useful to identify cold surfaces, thermal bridges, and hidden moisture indicators
Ventilation and airflow
Air movement and exhaust performance in bathrooms, kitchen, basement, and problem rooms,
Suspected mold context
Where mold could form based on moisture conditions and materials, and what should be confirmed before conclusions are made
What to expect: Typical visit 60–120 min • Verbal or written report • Prioritized recommendations
Humidity problems?
If odours persist or keep returning, there’s usually an underlying cause; Puritas assesses the space methodically and turns the most likely factors into clear next steps you can act on.
What we investigate
We follow the odour—checking moisture, airflow, drains, and materials—to deliver clear next steps and flag when HVAC or plumbing input may be warranted.
Moisture
Readings and risk zones (surfaces, basement, condensation).
Ventilation
Airflow and circulation patterns (rooms, bathrooms, basement).
Drains / traps / sewer odours
Screening for dry traps, localized sources, and signs of backflow.
Materials
Areas that absorb or hold odours (closets, carpets, wood, subfloors).
Patterns
Where/when it’s strongest (heating cycles, timing, weather, room use).
What to expect: Typical visit 60–120 min • Verbal or written report • Prioritized recommendations
Condensation
Humidifier, dryer, AC unit, water damage.
Ventilation
Lack of airflow, attics, insufficient air renewal.
Leaks
Plumbing leaks, leaks behind walls, poor seals.
Materials
Closets, carpets, wood, drywall, attics.
Infiltration
Humidifier, dryer, AC unit, water damage.
Appliances
Humidifier, dryer, AC unit, water damage.
Common factors
Humidity often has multiple drivers such as condensation, hidden leaks, ventilation, materials, rain infiltration, and daily moisture loads, and our role is to pinpoint what’s driving it and recommend realistic next steps
FAQ - Humidity
Moisture
Condensation, basement, high-risk areas.
Stagnant air
Insufficient ventilation, rarely used rooms, attics.
Drains / siphon
Sewer smell, dry trap, odor backflow.
Materials
Closets, carpets, wood, subfloors.
Infiltration
After rain: weak points, foundation, roof.
Post-remediation event
After cleaning / work, an odor that comes back
Common leads
An odour doesn’t always have a visible cause; we help clarify likely factors and guide realistic next steps.
Contact
Tell us what's going on
We'll reply with next steps
and schedule options
Response time
Urgent requests: Same business day
Non-urgent: within 24 hours
Service area
Greater Montreal Region
Information
Description of the situation and photos if possible