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My Business


Welsh Water has developed the following range of on-line services to help make your dealings with us as efficient as possible.

Your business account

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Business charges

There are three types of measured water and sewerage charges.

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Moving Premises

Moving premises can be stressful but letting us know is easy.

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Open Water

Welsh Water’s business customer sites using more than 50 megalitres of water per year can switch Retailer for clean water services. These are Welsh Water’s Open Water customers.

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Paying your bill

Our online card payment is safe, secure, quick and easy way to make payments at a time which is convenient to you.

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Trade Effluent

Trade effluent is anything other than domestic sewage. If you need to discharge trade effluent into one of our public sewers, you need our permission.

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Water meters

Check out the water meter supplies for commercial and industrial properties.

Direct Debit

There’s no easier, safer or more convenient way to pay for your water bill than by Direct Debit. Click here to complete our secure online request form.

Submit a meter reading

If you’ve recently received an estimated bill, or one of our meter readers was not able to take a reading and has left a card. Click here to submit your meter reading online.

Get in touch

We can point you to the right place.

In your area

Incidents or planned works near you.

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Explore our site

  • Business Services
  • Trade Effluent
  • Open Water
  • Business charges

  • Legal Notice
  • Data Protection
  • Anti-Slavery Statement
  • Privacy Policy
  • Social Media Privacy Notice

Dŵr Cymru Cyf, a limited company registered in Wales No. 2366777. Registered office: Linea, Fortran Road, St Mellons, Cardiff, CF3 0LT.

© Dŵr Cymru Cyf