Service illustration · not a completed customer projectTHE WORK, EXPLAINED
Start with the condition.
Understand the scope.
Compare the written component list with the reported concern across the system. Ask how ducts, outlets and relevant HVAC components are included or excluded, and how work assigned to another provider will be coordinated. EPA warns that an untreated contaminated component can re-contaminate the system.
What may be involved
- supply ducts
- return ducts
- coils
- air handler
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 / Delaney Park
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.
