Thames Water Customer Service Number

Speak to Thames Water customer service through our call connection service.

0844 448 8694

Calls cost 7p per minute plus your phone company's access charge.
Callers must be 18+ or have the bill payer's permission.

Important: This is an independent call connection service and is not affiliated with Thames Water. Calls cost 7p per minute plus your phone company's access charge. Callers must be 18+ or have the bill payer's permission.

About Thames Water

Thames Water is the UK's largest water and wastewater company, serving 15 million customers across London and the Thames Valley.

Common Reasons to Call Thames Water

Frequently Asked Questions

What is the Thames Water customer service phone number?

You can call Thames Water customer service on 0844 448 8694 through our call connection service. Calls cost 7p per minute plus your phone company's access charge. We are an independent service and not affiliated with Thames Water.

What are Thames Water's customer service opening hours?

Most Thames Water customer service lines are open Monday to Friday 8am-8pm and Saturday 9am-5pm. Hours may vary for different departments. Call 0844 448 8694 and our service will connect you.

How do I complain to Thames Water?

To make a complaint to Thames Water, call 0844 448 8694 and ask to be put through to the complaints department. You can also write to them directly via their official website.

How do I report a water leak or supply issue to Thames Water?

Call 0844 448 8694 to report water supply issues, leaks, or burst pipes. For emergencies, Thames Water operates a 24-hour helpline.

How do I set up a payment plan with Thames Water?

Call 0844 448 8694 to discuss payment options including Direct Debit, monthly instalments, or hardship support if you're struggling to pay.

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