Site and access conditions
Frost-related soil movement, tight hatch access, finished space above, and slope all factor into labor and timing.
Scope, materials, and capacity
A clear proposal states repair boundaries, dehumidifier capacity, material specs, disposal, and restoration steps.
Permits and additional trades
Certain projects require permits, engineering sign-off, testing, or other specialty trades -- confirm with the provider and the city.
For planning purposes
No number here is a real quote. Insist on a written, property-specific estimate.