What the site itself adds
Older wiring or plumbing behind the walls, tight hallways, an occupied household during construction, and how much protection the rest of the house needs can all add time.
What the materials commit you to
Where the repair stops and new work begins, what the existing systems can handle, whether materials match, and who’s responsible for haul-away should all be written down.
When a permit or specialist gets involved
Some scopes trigger a permit, an inspection, an engineer, or a specialty trade. Confirm that locally before assuming it won’t apply.
A planning tool, not a bid
Treat every number here as a starting point. A real quote needs an actual look at your kitchen.