Cost guide
ADU Plumbing Cost across San Diego County
A plumbing quote depends on the fixtures you choose and the route to existing services. Ask whether the estimate includes any slab or landscape repairs associated with the proposed work.
What moves the price
- Fixture locations and appliance choices
- Existing water and drainage connections
- Route for new supply and drain lines
- Slab, access, and restoration work
What to ask about in a quote
- Proposed supply, drain, and vent work
- Fixtures and installation allowances
- Permits and inspections in the agreed scope
- Surface restoration and exclusions
Common questions
Will the slab need to be opened?
That depends on the proposed routing and existing conditions. Ask the plumber to explain the plan and identify restoration work in the estimate.
What plumbing work is part of the quote?
Ask for supply, drainage, venting, fixtures, and water-heating work to be identified separately. Confirm whether the estimate includes permits, testing, and fixture allowances.
Who restores the slab or yard?
If the proposed route affects concrete, paving, or landscaping, ask who repairs each surface and what level of finish is included. Put exclusions in the written scope.
San Diego County projects
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