Excellent 5* RatingHow to switch business water supplier
Switching changes who sends your bill, while your water supply carries on exactly as before. Here’s who can switch, what you need, and how the move works.
Switching your business water supplier sounds bigger than it is. You’re changing the company that bills you, not the water, the pipes or the meter. This guide covers who can switch, what you need to hand over, and how long the move takes.
Quick snapshot
- Any business in England or Scotland can switch its water retailer, and your supply stays exactly the same.
- You’ll need your SPID, a recent meter reading and your current account details.
- Most switches finish within about a month, with no interruption to your supply.
- Switching itself normally carries no fee, but leaving a fixed contract early sometimes does, so check your terms.
Can any business switch its water supplier?
Almost any can. Since April 2017 in England and April 2008 in Scotland, non-household customers have been free to choose their water retailer instead of staying with the regional incumbent. That covers businesses, charities and public sector sites of every size, from a corner shop to a multi-site operator.
Wales is the main exception, as its market hasn’t opened in the same way, so most Welsh-supplied premises can’t switch retailer. Households can’t switch either, because the open market is for business supplies only.
How to switch, step by step
The move is mostly paperwork. It runs in this order:
- Gather your details: your SPID, a current meter reading, and your latest bill so you know your rate and retailer.
- Check where your contract stands, including the end date or whether you’ve rolled onto a deemed rate.
- Compare retailers on price and service, looking past the unit rate to the standing charge, contract length and billing quality.
- Choose a retailer and agree the contract, which is a single agreement with the new supplier.
- The new retailer arranges the switch with the wholesaler. You don’t touch the supply, the meter or the pipes.
- Your old account closes, you get a final bill, and your new retailer takes over billing from the switch date.
Will my water supply be interrupted when I switch?
No, and this is the part people worry about needlessly. Switching changes the retailer that bills you, nothing more. Your regional wholesaler still owns the network, treats and delivers the water, and looks after the pipes and meter. There’s nothing to reconnect, so the supply carries on exactly as before.
What information do I need to switch?
Three things get a switch moving: your SPID, the supply point ID printed on your bill; a recent meter reading, so your closing and opening accounts line up; and your current retailer and account number. A recent bill usually has all three on it.
Can I switch mid-contract or out of contract?
If you’re in a fixed contract, you arrange the new deal to start when the current one ends, and it pays to begin a couple of months early so nothing rolls over automatically. If your contract has already lapsed, you’re probably on a deemed or out-of-contract rate, which tends to be the dearest way to buy water, so that’s usually where the most is to be saved.
How long does it take, and what does it cost?
Most switches complete within about a month of agreeing the new contract, and your supply runs without a break the whole time. There’s normally no fee to switch retailer and no work on site, since you’re moving an account rather than changing any infrastructure. The exception is leaving a fixed contract early, which can carry a termination charge, so it’s worth checking your terms. Any saving comes from leaving a default rate and pricing against your real usage. The main thing that stretches the timeline is the notice period on your current contract, which is why it pays to line up the new deal before the old one ends.
Is it worth switching business water supplier?
Usually, if you’ve sat with the same retailer for years or drifted onto a deemed rate. How much you save depends on your usage, your current rate and your region, so it varies from one business to the next.
It’s also worth a look at your historic charges while you’re at it. A business water audit can check whether you’ve been overpaying on items like surface water drainage, which often returns money on top of a sharper rate. Recent examples run from a £110,000 refund for a leisure group to £320,000 saved for a facilities business. A quick benchmark against current market rates shows whether your existing deal still stacks up, and how much a move would actually change.
Switching in Scotland
Scotland opened its business water market in 2008, the first country in the world to do it, so the right to switch is even longer established north of the border. The mechanics match the rest of Great Britain: Scottish Water stays as the wholesaler while licensed providers compete on billing and service. Our Scotland page covers the retailers and rates specific to the Scottish market.
Who can switch on rented or leased premises?
Whoever holds the water account can switch, so on rented premises it’s usually the tenant when water is billed to them directly, and the landlord when it’s bundled into the rent. Check whose name is on the bill and what your lease says about utilities. If you pay your own water bill, you have the same right to switch retailer as any other business.
Frequently asked questions
Can I switch business water supplier at any time?
If you’re out of contract or on a deemed rate, you can switch at any time. If you’re in a fixed contract, you switch at the end of the term, so it’s best to arrange the new deal a couple of months before it expires.
Does switching business water supplier interrupt my supply?
No. Your water keeps coming from the same wholesaler through the same pipes. Only the company that bills you changes, so there’s no interruption.
How long does a business water switch take?
Usually within about a month from agreeing the new contract, with no break in supply.
Do I have to tell my current supplier I’m leaving?
Usually not. In most cases your new retailer arranges the switch with the wholesaler and closes the old account for you. Some contracts work differently, though, and need you to serve a termination notice yourself before the term ends. If you’re in a fixed contract, or you’re not sure how yours works, it’s worth checking with your current provider so a notice period doesn’t catch you out.
Does switching business water supplier affect my water quality?
No. Your water still comes from the same regional wholesaler through the same network, so quality and pressure don’t change. Only your billing and account management move.
Can a tenant switch business water supplier?
Yes, if the water is billed to the tenant directly. Whoever holds the water account chooses the retailer, so check whose name is on the bill. If water is included in your rent, the landlord holds the account.
Can I switch several sites or SPIDs at once?
Yes. A business with multiple supply points can move them onto a single agreement and one consolidated bill, which also tidies up your admin.
