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 / East Foothills
Local context
The US Environmental Protection Agency does not recommend that air ducts be cleaned routinely, but only as needed, and lists the conditions that would justify it: substantial visible mould inside hard-surface ducts or system components, ducts infested with vermin such as rodents or insects, and ducts clogged with excessive dust and debris that is released into the home. EPA also says no chemical biocides are currently registered for use in internally insulated air duct systems, and that sealants are not recommended for routine use. Ask to be shown the condition before agreeing to a scope. EPA guidance describes when cleaning may be appropriate; it is not a diagnosis of your system.
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.
