- Postcode districts
- SM1, SM5, SM6
- Nearby
- Sutton, Mitcham and Morden
- Guide price
- £750–£5,000
- Typical time on site
- 1–5 working days
- Water
- Very hard across most of Greater London
- Survey
- Free, at your home
What does bathroom plumbing work cost in Carshalton?
For Carshalton, our guide range for bathroom plumbing work is £750 to £5,000 including VAT. Prices in London run at about 25% above the national guide, mainly because of labour rates. 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 Carshalton including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Carshalton
In Carshalton we cover SM1, SM5 and SM6; we also cover Sutton, 1.9 miles away, and Mitcham.
London homes in Carshalton often mean stairs, permits and neighbours below; we plan the logistics as carefully as the bathroom. For Carshalton homes on a combi boiler, we measure the flow rate at the bathroom before you choose a shower valve. Plumbing surveys in Carshalton include a look at the existing pipework for lead, corrosion or poor support before we quote.
Supplies across most of Greater London are very hard. Taps, plug wastes and toilet pans scale up quickly, so chrome copes better than matt black, and a removable aerator is worth having. 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
- 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
- A check of your hot water system, and the pressure and flow rate at the bathroom
Decisions to make first
Shower supply
Combi boilers and unvented cylinders give mains pressure. A gravity system with a cold tank may need a pump, but a pump must never be connected to the mains.
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 England
In England, the Water Supply (Water Fittings) Regulations 1999 apply. New drainage or a new connection to the soil stack can be building regulations work under Part H, and a macerator or pumped WC is acceptable only where there is also a WC on gravity drainage elsewhere in the home.
