Service illustration · not a completed customer projectTHE WORK, EXPLAINED
Start with the condition.
Understand the scope.
Document accessible components, duct materials and access limits before agreeing to cleaning. Ask for the observed condition and proposed scope in writing. Assessment does not establish that cleaning is needed.
What may be involved
- access ports
- duct surfaces
- insulation
- register boots
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 / San Carlos
Building history
San Carlos incorporated in 1925 during the Peninsula's early suburban-growth period.
Source ↗Local exposure
The Crystal Springs Gap can bring a summer maritime cooling effect as far as San Carlos.
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 ↗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.
