Service illustration · not a completed customer projectTHE WORK, EXPLAINED
Start with the condition.
Understand the scope.
Request the location and images of the reported condition, along with any inaccessible portions. A visual resemblance does not by itself identify mold; EPA notes that expert assessment and sometimes laboratory confirmation are needed. Ask which findings support the proposed next step without treating a photograph as a complete diagnosis.
What may be involved
- accessible duct surfaces
- cooling components
- photographic record
- access openings
Ask the provider to distinguish existing parts to inspect, proposed replacements, and tools, materials or reports included in the service. Confirm the work and exclusions after assessment; this list does not mean that every item will be supplied or replaced.
LOCAL RESEARCH / Bel Air
Local context
The EPA does not recommend that air ducts be cleaned routinely, but only as needed, and names three situations where cleaning may be appropriate: substantial visible mold growth inside hard-surface ducts or on other components, ducts infested with vermin, and ducts clogged with excessive dust and debris where particles are actually released into the home. The EPA also notes that no chemical biocides are currently registered for use in internally-insulated air duct systems, and does not recommend routine use of sealants to encapsulate contaminants. Ask which of those conditions was observed before agreeing to any work.
Source ↗Area-wide context does not establish the condition of your property or equipment.
Before the visit
Building age and weather cannot establish duct contamination. The system itself needs to be inspected.
