Kitchen plumbing in Greater London

Who usually needs kitchen plumbing in Greater London?

Plenty of Greater London kitchens still have the sink where it was put decades ago, and moving it under the window or into an island is a common reason to call a plumber.

People adding a boiling water tap in Greater London usually need a fresh cold feed and room under the sink for the tank, planned alongside the sink unit.

What does kitchen plumbing in Greater London include?

After the survey visit we write the scope down. For kitchen plumbing in Greater London it usually covers:

A survey of the stopcock, supply pipes, waste route and drain connection
Hot and cold supplies run to the new sink position
Isolation valves on each tap and appliance feed for quick shut-off
Dishwasher and washing machine supplies, with waste connections through suitable traps
Waste pipes laid to a steady fall, with an access point for clearing blockages
Radiators moved or replaced so they clear the new units
A cold feed for a boiling water tap tank or a fridge with a water dispenser
Redundant pipes cut back to the live supply and capped, then a full leak check

How much does kitchen plumbing cost in Greater London?

Use these ranges to plan your budget. They include VAT, reflect costs in London, and are firmed up once we have seen your Greater London kitchen. Prices in London usually run above the national guide, mainly because labour and parking cost more.

How much does kitchen plumbing cost in Greater London?
Typical project	Guide price
Sink, dishwasher and washing machine connectionsSupplies, valves and wastes in the new layout	£260–£650
Sink relocated, or new supplies for a boiling water tapNew pipe and waste runs	£520–£1,300
Waste run across a solid concrete floorChasing, pipework and reinstating the floor	£780–£2,000
Radiator moved or replacedDrain down, new pipework and refill	£320–£650

Guide ranges cover labour, pipework, fittings, valves and traps; the sink, tap and appliances themselves, any gas work and any building control or building warrant fees are not included. Prices include VAT at 20%.

Kitchens in homes across Greater London

Across Greater London you will often find Victorian and Edwardian terraces, conversion flats, mansion block flats and 1930s semis, and each shapes the kitchen differently. Victorian terraces often have a narrow galley beside the side return, while conversion flats and mansion blocks usually fit the kitchen into a small room or along one living-room wall.

London's mains water is hard, so limescale builds quickly on taps and boiling water taps, and a scale-reducing filter is worth planning in. Permit parking, red routes and flats without lifts are common, so parking suspensions, stair carries and lift bookings may need arranging before delivery day.

Opening a narrow galley into the dining room or side return is one of the most common terrace projects in London. Leasehold flats often call for a full kitchen in a small space, worked around building rules on noise, working hours and waste.

Rules for kitchen plumbing in Greater London

In England, kitchen pipework and fittings must meet the Water Supply (Water Fittings) Regulations 1999, which cover suitable materials, backflow protection and preventing waste or contamination of the supply. Connecting a sink to an existing waste or stack is routine, but a new connection to an underground drain, or a change to how waste water is discharged, involves building control. Gas pipework to a hob or cooker is separate work for a Gas Safe registered engineer.

Conservation areas are widespread across London, so a new extractor vent on a front wall may need permission, and leaseholders usually need the freeholder's written consent first.

Before you start

Find out whether the kitchen floor is suspended timber or solid concrete, as a waste run across concrete means cutting and reinstating the floor.
Check your water pressure suits the tap you want, particularly a boiling water tap or a tall spray tap; the tap's instructions give its minimum.
Put the dishwasher next to the sink so its supply and waste stay short, easy to reach and less likely to block.
Ask for redundant pipes to be removed back to the live supply rather than left behind units, where they can hold stale water or leak.
If your house in Greater London has a solid floor, ask at the survey where a waste could run before you settle on an island sink.
Ask for supplies and wastes to be positioned to suit each appliance's instructions, so hoses are short and do not kink.

Questions about kitchen plumbing in Greater London

How much does kitchen plumbing cost in Greater London?

For connecting the sink, dishwasher and washing machine, budget around £260 to £650 including VAT in Greater London. That reflects typical costs in London; we confirm the actual figure in writing once we have measured up.

Do you cover the whole of Greater London?

Yes. We carry out kitchen plumbing across Greater London, including Brent, Islington, Westminster and Bexley. Every job starts with a free survey visit and an itemised written quote.

Why should every appliance have an isolation valve?

An isolation valve lets you shut off the water to one tap or appliance without turning off the whole house. If a dishwasher hose splits or a tap needs a new cartridge, you turn a small screw or lever under the sink and the rest of the home keeps running. Valves are fitted on the hot and cold tap feeds and on each appliance supply.

What happens to the old pipes during a kitchen refit?

Pipes that will no longer serve anything are cut back to the nearest live pipe and capped, rather than left as long dead ends behind the new units. Water sitting in an unused length of pipe can go stale, and a forgotten joint can leak where nobody will see it. Old wastes are removed or sealed so they cannot let drain smells back into the room.

What plumbing does a boiling water tap need?

A boiling water tap needs a cold supply to a tank under the sink, usually through a filter, plus an electrical socket or spur for the tank. Some models also take hot and cold feeds for the mixer side. The tank uses cupboard space, so the sink unit is planned around it, and the tap's minimum water pressure is checked against your supply.

Kitchen plumbing in towns across Greater London

Choose a town for local guide prices and postcode coverage:

Who usually needs kitchen plumbing in Greater London?

What does kitchen plumbing in Greater London include?

How much does kitchen plumbing cost in Greater London?

Kitchens in homes across Greater London

Rules for kitchen plumbing in Greater London

Before you start

Questions about kitchen plumbing in Greater London

Kitchen plumbing in towns across Greater London

Kitchen plumbing in nearby areas

Book a free survey visit in Greater London

Book a free survey visit