How long does an energy company have to resolve my complaint?

Energy suppliers have 8 weeks to resolve your complaint. After that, you can escalate to the Energy Ombudsman for free.

Can my energy supplier back-bill me for years of usage?

No, under Ofgem's back-billing rules, suppliers cannot charge for unbilled energy more than 12 months old if the delay was their fault.

What is the Energy Ombudsman and is it free?

The Energy Ombudsman is a free, independent dispute resolution service. They can award up to £10,000 in compensation and make binding decisions on suppliers.

Complain to Southern Water

Water company serving the South East — complaints about sewage and billing

Utility

Be the first to file a complaint against Southern Water and help build our community data.

Start My Southern Water Complaint View Contact Details

Common Southern Water Complaints

Billing Error

Dispute incorrect charges

Supply Problem

Compensation for outages

Switching Problem

Resolve supplier switch issues

Meter Issue

Challenge inaccurate readings

Laws That Protect You

Consumer Rights Act 2015

Utility services must be performed with reasonable care and skill.

Ofgem Standards of Conduct

Rules for fair treatment and accurate billing.

Tips for Southern Water Complaints

Take regular meter readings and photos
Keep copies of all bills and statements
Energy companies must give notice before price increases
You can switch supplier without penalty in most cases
The Energy Ombudsman can help after 8 weeks

If Southern Water Doesn't Respond

1
Customer Service
Allow 14 days
Contact your energy supplier's customer service team
2
Formal Complaint
Submit a formal written complaint with your account number and meter readings
3
Energy Ombudsman
8 weeks
Free escalation after 8 weeks or deadlock letter
Visit website
4
Ofgem
Report serious issues to the energy regulator
Visit website

Contact Emails

customerservices@southernwater.co.uk

Customer Service

complaints@southernwater.co.uk

Complaints

Expected Response Time

56 days

Energy suppliers have a statutory 8-week window before you can escalate to the Energy Ombudsman

Ready to Fight Back?

Create a professional, legally-backed complaint in minutes.

Start My Complaint

Free to start • No credit card required

Frequently Asked Questions

Other Utility Companies

Ready to Get Results?

Create a free account to track your complaint, get AI-powered letter drafts, and see how other customers resolved their Southern Water issues.

Create Free Account Sign In

No credit card required • Start your complaint in minutes

Don't Let Southern Water Ignore You

Join thousands of consumers who've successfully fought back and won.

Create My Southern Water Complaint

Disclaimer: NoReply is an independent consumer advocacy platform. We are not affiliated with, endorsed by, or connected to Southern Water or any of the companies listed on this site. Contact information is sourced from publicly available company websites. Statistics shown are based solely on cases filed through our platform. This page is for informational purposes only and does not constitute legal advice.