The business water retail market in England has been open to competition since April 2017. Win Energy compares available water retailers for your postcode, covering both clean water supply and wastewater charges. Our comparison service is free and carries no obligation to switch.
The business water retail market in England deregulated in April 2017, giving all non-household customers the right to switch water supplier — just like gas and electricity. Despite this, the majority of UK businesses are still paying default rates to their regional water company, often significantly more than they need to.
Win Energy compares available business water retailers for your postcode, including both clean water supply and wastewater (drainage) charges — which can represent up to 50% of your total water bill.
Compare business water rates for your postcode — we check all available retailers in your area
Wastewater & drainage included — we compare the full bill, not just the supply charge
Water efficiency review — identifying leaks and waste often saves more than the rate switch alone
Bundle with energy — add water to your gas and electricity comparison for a complete utility review
Since the market opened, most businesses in England and Scotland can choose who bills them for water — but the savings work differently from energy. Here is an honest guide to what switching your water retailer can, and cannot, do.
You switch your water retailer — the company that bills you and handles your account — not the wholesaler that owns the pipes. Your actual water supply and network do not change, so there is no disruption and no work on site.
Businesses in England (since April 2017) and Scotland (since 2008) can choose their retailer. In Wales it is limited to large users of over 50 million litres a year. Household customers cannot switch. We confirm your eligibility first.
We will be honest: retail margins are small, so headline savings are usually modest — often single figures in percentage terms. The bigger wins tend to come from fixing billing errors, consolidating multi-site accounts and cutting the water you use.
Beyond the unit price, a good retailer sorts consolidated billing, clear account management, accurate meter reading and water-efficiency support. For multi-site businesses, one bill and one point of contact is often worth more than the rate itself.
Many businesses pay for surface-water or highway drainage they do not actually use, or are billed on estimated reads. Reviewing your charges can uncover refunds and corrections — sometimes worth more than the switch itself.
Your bill splits into clean water (what is supplied) and wastewater or sewerage (what is taken away), often with drainage charges on top. We help you understand each line so you only pay for what applies to your site.
We will not oversell water switching — where the saving is small, we will say so, and focus on billing accuracy and efficiency instead. Eligibility and savings depend on your region, meter and usage.
Most UK businesses haven't switched since 2017 deregulation. Compare available water retailers for your postcode — free independent service.