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 / Presidio
Local context
The western waterfront from the Presidio south along Ocean Beach was developed for military and recreational uses before becoming part of the Golden Gate National Recreation Area.
Source ↗Planning your work
Duct cleaning is not usually construction work, but replacing, altering or reconnecting ductwork or air-handling equipment can be. The Contractors State License Board's consumer page on building permits sets out the California Building Standards Code position that work may not be erected, altered, repaired or demolished without a permit first obtained from the building official, and says code requirements vary between cities and counties. Ask which parts of the proposed scope are cleaning and which are alteration, then check with the building department for the address.
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.
