- Postcode districts
- EC1, EC1A, EC1M, EC1R, EC1V, EC1Y + 6 more
- Nearby
- Archway, Tottenham and Walthamstow
- 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 Islington?
Our guide price for bathroom plumbing work in Islington is £750–£5,000 including VAT. We adjust the national guide for London, where prices are typically about 25% above 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 Islington including VAT. Your itemised written quote after the free survey is the price that counts.
Working in Islington
As well as Islington itself (EC1, EC1A, EC1M and 9 more postcode districts), we survey in Archway, Tottenham and Walthamstow.
In Islington, many bathrooms are in flats or converted houses, so we check lease consents, access and the floor below before we price. If your Islington water is hard, a scale reducer or softener on the bathroom supplies can protect valves and shower heads. In Islington flats, any change to the WC or wastes is planned with the lease and the flat below in mind.
Water across much of Greater London is 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
- New hot and cold pipework in copper or plastic, properly clipped, and insulated where it runs through cold spaces
- A check of your hot water system, and the pressure and flow rate at the bathroom
- Basin, bath and shower wastes sized and laid to a steady fall, with traps that hold their water seal
- Isolation valves on every fitting, so taps, cisterns and valves can be serviced without draining the system
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.
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.
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.

