London Water Services

Frequently asked questions

Who supplies the water in London?

It depends on your postcode. London is supplied by Thames Water (0800 316 9800), Affinity Water (0345 357 2407) or Essex & Suffolk Water (0800 526 337) — your water bill names your supplier.

I can see water leaking in the road — who do I tell?

Report it to the supplier for your postcode — Thames Water (0800 316 9800), Affinity Water (0345 357 2407) or Essex & Suffolk Water (0800 526 337). Leaks in the road or pavement are on the public network, and reporting one costs nothing.

I have no water — what should I do?

Check with a neighbour first. If they have no water either, the problem is likely on the mains — call your supplier: Thames Water (0800 316 9800), Affinity Water (0345 357 2407) or Essex & Suffolk Water (0800 526 337). If it is only your property, check your internal stop tap is fully open; if it is, the fault may be on your own supply pipe — the part we repair and replace.

Who handles sewerage and drains in London?

Whoever supplies your water, wastewater and sewerage in London is handled by Thames Water. The drains inside your property boundary are the owner's responsibility — that is the work we do.

Is the water hard or soft in London?

London's water is hard, and the risk of limescale in kettles and boilers is high. A filter or softener can help — see our water filter guide for London.

Which nearby towns do you also cover?

As well as London, we cover the surrounding area, including Bloomsbury (1 mile), Central London (1 mile), Covent Garden (1 mile), Farringdon (1 mile), Fitzrovia (1 mile) and Holborn (1 mile).

Which postcodes does London cover?

The London area covers SW1, W1, EC1, WC1, SE1, N1, E1 and NW1.