Conditions and access
Hidden damage found once work begins, cramped crawlspace access, whether anyone's living in the space above, ceiling height, ground slope, landscaping in the way, and protecting finished floors all factor into labor time.
Scope and materials
Get specifics on where repairs stop and start, how much capacity the system needs, which materials are compatible with your house, where debris goes, what gets tested, and what restoration is included.
Permits and specialist input
Depending on scope, expect possible permit filings, inspections, engineering sign-off, environmental testing, or additional trades. Check requirements with your provider and the local authority.
Nothing quoted here is a binding offer -- treat it as background before requesting a written, property-specific proposal.