Written by Amanda Casteel · COO Reviewed by Johnny Casteel · CEO · Master Plumber Updated 2026-07-17 VA Plumbing Lic. 2710075081 · Contractor Lic. 2705180998
What actually moves the price
Ejector vs gravity
Below-sewer fixtures need an ejector pit, pump, and alarm — that changes the whole package.
Slab and access
Breaking and restoring concrete dominates cost versus open joist basements.
Venting and stack tie-in
Code-compliant vents and clean tie-ins to existing stacks are not optional line items.
How to read a quote
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Planning / site visit
We confirm elevations relative to the sewer before promising a bath layout.
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Gravity rough-in path
When fixtures can drain without an ejector — still includes proper vents and tests.
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Ejector + slab path
Common in NoVA basements; includes pit, pump, and restoration expectations.
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FAQs
Can you give an exact basement bath plumbing price over the phone?
Only a ballpark. Elevations and ejector needs decide the scope. We quote after we see the basement.
Should I rough-in during a remodel even if I finish later?
Often yes — stub-outs are cheap while the floor is open. See our remodel checklist.
Where do you serve?
Arlington, Alexandria, Fairfax County, and mapped MD/DC corridors. Confirm your address when you book.
Want a real number for your home?
Call (703) 214-2551 or request service — we diagnose first and quote flat-rate before work whenever the fault is clear.