Thames Water Contact Number: 0800 980 8800

You can call Thames Water on their freephone general enquiries contact number 0800 980 8800┬áto pay your water bill over the phone if you don’t have a direct debit tariff to pay for your services.


Freephone Customer Service Helpline – 0800 980 8800

Call Thames Water on their freephone customer service telephone number 0800 980 8800 to contact a customer service representative with enquiries about our bill and account before making a payment. You should also use this number to arrange your water supply to be charged annually, quarterly or every month before discussing how to set up a direct debit to save the hassle of making a manual bank transfer. It is also advised to contact Thames Water as soon as possible if you are struggling to pay your bill as the company may be able to offer a payment holiday to put your account on hold or provide an alternative financial plan to clear any arrears.

Furthermore you can get in touch to submit a meter reading if you are on a variable tariff which will charge your water supply on your usage. Alternatively, you should contact a customer service representative to report low pressure in the water supply coming from your taps but they can send a plumber to fix the problem at your home address.

Alternatively, if you have recently moved into a new property in the London area then you can ask for a quote for your water supply but prices for a fixed and variable tariff will vary. If you are moving home but will still be living in the Greater London area then you can call a Thames Water customer service representative to transfer your supply to your new address before you arrive.


24-Hour Leakline – 0800 714 614

You can also call Thames Water on their 24-hour number for reporting a leak 0800 714 614 to receive emergency support at any time of the day. Callers to the freephone leak line number can arrange for an emergency plumbing engineer to visit their home address to assess the damage and help fix the problem. However, you may first wish to ask a Thames Water representative how to turn off your water supply to prevent any further leakage or flooding.


Thames Water Call Costs and Times

Thames Water uses telephone numbers beginning with 0800 meaning that callers will be able to contact a representative completely free of charge from both UK landlines and mobiles. The water supplier’s customer service lines are open from 8am to 8pm, Monday to Friday, 8am to 6pm Saturday and are closed on Sundays but you can call their 24-hour Leakline any time of the day.


Thames Water Phone Numbers

Thames Water Department UK Contact Number
Customer Services 0800 980 8800
Leakline 0800 714 614


Write to their Head Office

If you would like to appeal a water bill or register a formal written complaint regarding the service you have received then you should write to the Thames Water customer service team on the following UK postal address:

Thames Water,
Clearwater Court,
Vastern Rd,
RG1 8DB,
United Kingdom.