
DUCT INSPECTION
It is a cost-effective way to diagnose internal IAQ issue relating to the HVAC system and distribution ducting, including identifying:
- reduced airflow
- hot or cold spots
- suspected damage or leaks
- The potential area of contamination


If you have noticed any of the following; it’s a good idea to go for duct inspection:
- Loose ducts often produce unnecessary sounds or noise.
- Air leaks / fallen ducts will have uneven airflow
- Inadequate duct insulation will have uneven temperatures from the diffusers
- Dirty ducts: Discharge of debris, accumulation around the diffusers
- Mold and mildew: Musty odors from ducted airflow
- High energy bills
Proper mold inspections should focus on:
- knowing the cause and extent of mold contamination,
- risks to people and property,
- and appropriate remediation strategies.
Mold inspections and the recommendations therein should be consistent with the industry guidelines. Some of the guidelines are from the following organizations:
- American Conference of Governmental Industrial Hygienists,
- the American Industrial Hygiene Association,
- the Environmental Protection Agency (EPA),
- Health Canada,
- the New York City Department of Health,
- and the Institute of Inspection, Cleaning, and Restoration Certification (IICRC).


Mold investigations should be customized for the scale and complexity of each project, ranging from preliminary building walk-throughs to comprehensive Indoor Air Quality (IAQ) investigations. Investigations could include:
- occupant surveys,
- moisture testing,
- photographic documentation,
- invasive inspections of concealed building cavities,
- microbial sampling & analysis,
- and environmental monitoring of indoor air quality (i.e. carbon dioxide, carbon monoxide, temperature, and relative humidity).
