What affects access and labor
Concealed damage, difficult access, occupied living space, ceiling height, slope, landscaping, and the need to protect finishes all change how long a job takes and what it costs.
Defining scope and materials
The repair boundary, system capacity, material compatibility, disposal, testing, and restoration work should all be spelled out, not implied.
Permits and outside specialists
Certain jobs call for permits, inspections, engineering review, environmental testing, or specialty subcontractors -- confirm what applies with your provider and the local authority.
For planning only
Nothing here is a binding offer. Get a written, property-specific scope and price before agreeing to anything.