The contact number for Thames Water is available directly from their website at no or lower cost
0800 316 9800
Call Connection, Calls cost 7p per minute plus your standard network charge.
Please ensure you have the bill payers permission before calling.
This website provides hard to find phone numbers as a call connection service, and is not associated with the company.
The Thames Water complaints number can be used to make a complaint about the general company or its services, just call.
| Department | Opening Times |
| Thames Water Complaints | Monday-Friday: 9am-5pm |
| Customer Service | Monday-Friday: 9am-5pm |
| Service Complaints | Monday-Friday: 9am-5pm |
| Staff Complaints | Monday-Friday: 9am-5pm |
| Leak Complaints | Monday-Friday: 9am-5pm |
| Account Complaints | Monday-Friday: 9am-5pm |
Thames Water Complaints
The complaints team can be called for any general complaints you have about Thames Water and their services. Just call the complaints number, you may be transferred to a different department if they will be able to deal with your complaint better.
Customer Services
The customer services team can be contacted if you have any inquiries or problems that you would like help with. Simply call to speak to a member of the team about any aspect of the company/services. You can also inquire about the complaints procedures and policies.
Service Complaints
If you are unhappy with the services you have received from Thames Water you can call the service complaints team. You will need to explain what part of their services are unhappy with and you can even suggest improvements for them to take into consideration.
Staff Complaints
If you have spoken to a member of the Thames Water team via phone call or email or you have recently seen a repair team in person as well as any other Thames Water staff and you had a negative experience with them you can call the staff complaints team, you may need to give a description of the experience and any information you have about the staff member.
Leak Complaints
If you’re experiencing a leak or you have recently seen a leak or you have had a leak recently and you’re unhappy with what the repair team have done to fix it (or it is leaking again) you can call the leak complaints team, they may organise for another repair team to come out and fix the leak.
Account Complaints
The account complaints team deals with any complaints you may have about the account feature on the Thames Water website whether you can’t log in or you feel there’s something missing you can complain about it by calling.