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 / South San Francisco
Building history
South San Francisco was incorporated in 1908, placing much of its original civic development in the Peninsula's streetcar-era growth period.
Source ↗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 ↗Planning your work
South San Francisco's Building Division states that any building or structure to be erected, constructed, enlarged, altered, repaired, moved, improved, removed, converted or demolished requires a building permit. It adds that while the codes may exempt certain work from permit requirements, electrical, plumbing or mechanical work must still be permitted, and asks readers to check with the Planning Division as well. Confirm the scope with the city before work is arranged; this reference does not establish what your property requires.
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.
