Unmeasured charges for businesses
If you do not have a water meter, you will be charged a fixed cost each year based on your premises. On this page, we break down how we calculate your bill and provide information on charges.
How is my bill calculated?
The amount we charge is different for all premises. We bill from 1st April to 31st March, or from your move in date to 31st March if you have recently moved in. A fixed rate for the year is based on:
- Size of premises
- Local amenities
- Premises location
- General condition
We do not bill for the amount of water you use, or the number of employees in your business. If you would prefer to be billed for the amount of water you use, you can use our calculator to estimate your usage and charges then apply for a meter online.
Non-Household Unmeasured Charges
Unmeasured bills are sent once a year and take one of two formats, either:
Rateable value (RV) charge - the bill will be made up of a standing charge plus a charge per pound (£) of rateable value for the premises.
or
Uniform Service Charge (for properties built between 1 April 1990 and 31 March 2000) - charges are based on the average rateable value of premises in Wales.
Our charges for 2025-2026 are:
| Unmeasured Water Services | £ |
|---|---|
| Standing charge | 135.32 |
| RV based charge - per poundage of RV | 1.4196 |
| Uniform Service Charge | 319.87 |
| Unmeasured Sewerage Charges | £ |
|---|---|
| Standing charge | 231.17 |
| Standing charge - Foul only | 109.97 |
| RV based charge - per poundage of RV | 2.4270 |
| Uniform Service Charge | 546.69 |
| Uniform Service Charge - Foul only | 425.49 |
| Surface Water only - includes highway drainage (For premises with a rateable value of £25 or less, no charge will be made) |
182.88 |
All charges are from 1st April 2025 to 31st March 2026. Our charges are set by Ofwat, the water industry regulator. For more information on our current usage charges, please refer to our summary of non-household charges:
If you receive your sewerage services from Hafren Dyfrdwy, please see your charges here.
If you receive your sewerage services from Severn Trent, please see your charges here.
Scheme of charges
This page contains the Scheme of Charges and all previous versions of this document.
Find out more