Service illustration · not a completed customer projectTHE WORK, EXPLAINED
Start with the condition.
Understand the scope.
Ask which accessible portions will be visually checked, how the findings will be recorded and which portions remain unverified. EPA identifies visual inspection as the main way to check cleaning results. Agree how unresolved debris or access limits will be handled without treating inaccessible areas as inspected.
What may be involved
- accessible ducts
- registers
- air-handler housing
- documentation
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 / Foster City
Local context
Where duct or HVAC work is permitted in California, independent field verification can be part of closing the permit. The California Energy Commission's Home Energy Rating System page says that depending on the work being done HERS testing may be mandatory and that properly permitted work will trigger any necessary testing, that a homeowner has the right to find and hire a rater who is independent of the contractor, and that suspected asbestos in duct insulation or sealing can exempt some tests, including duct leakage testing. Ask early whether the proposed scope is cleaning alone or work that would trigger verification.
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.
