- Postcode districts
- SA1, SA2, SA5
- Nearby
- Briton Ferry, Neath and Llanelli
- Guide price
- £550–£3,700
- Typical time on site
- 1–5 working days
- Water
- Soft across most of West Glamorgan
- Survey
- Free, at your home
What does bathroom plumbing work cost in Swansea?
For Swansea, our guide range for bathroom plumbing work is £550 to £3,700 including VAT. We adjust the national guide for Wales, where prices are typically about 7% below the UK average. The figure depends on the size of the room, whether anything moves, and the products you pick.
Like-for-like
- Pressure test
Partial re-route
- Basin or shower moved
New layout
- Pumped waste or macerator
Guide prices for Swansea including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Swansea
We work right across Swansea — SA1, SA2 and SA5 — and in neighbouring Briton Ferry and Neath.
Swansea is a big place with every kind of home, from terraces to flats to new builds, so we never price from a photo alone. If your Swansea home has a gravity system with a loft tank, we check the head of water before recommending a shower or a pump. In Swansea flats, any change to the WC or wastes is planned with the lease and the flat below in mind.
Water across much of West Glamorgan is soft. In soft water, taps, wastes and toilet pans scale up slowly, so brushed and matt finishes are a safe choice. Hardness varies street by street, so check the figure for your postcode with your water supplier.
What the job includes
- Draining down and isolating supplies, with the rest of the house back on water as soon as possible
- Isolation valves on every fitting, so taps, cisterns and valves can be serviced without draining the system
- The WC connected to the soil stack, or a new branch where the WC is moving
- Basin, bath and shower wastes sized and laid to a steady fall, with traps that hold their water seal
Decisions to make first
Pipe routes
Drilling through the middle of joists, rather than notching the tops, keeps the floor strong. Routes are planned with the joist direction in mind.
Gravity or pumped waste
Gravity drainage is always the first choice. A shower waste pump or macerator solves a run that cannot fall, but adds noise, a power supply and servicing.
Rules that apply in Wales
Wales also uses the Water Supply (Water Fittings) Regulations 1999 and has its own Part H for drainage. The same rule on macerators applies: there must be a gravity-drained WC elsewhere in the home.

