How to Check Your Business Water Supplier in the UK

Introduction

Imagine your office sink starts dripping at midnight. You grab the latest bill to call someone, but the name on the top looks strange. Who owns that customer line? Are you even on the best rate? Since England’s water market opened in April 2017, every firm can pick a retailer, just like choosing an energy plan. Yet thousands still stick with the default supplier and overpay.

In this guide, we’ll show you exactly how to check water supplier info, how can I change water suppliers, and, if it makes sense, change your water supplier. We’ll also flag how a quick business electricity comparison (or compare business electricity, business electricity price comparison, business energy comparison) with Utility4Business can double your savings. 

Background: The UK Business Water Supply System

Wholesale vs. Retail: Who Does What?

Think of the water world as a two‑layer cake:

• Wholesalers own the pipes, reservoirs, and treatment plants. They move the water.
• Retailers send bills, handle customer calls, and set service extras.

Knowing which layer you are dealing with stops you from ringing the wrong helpline at 2 a.m.

Deregulation & Choice

England and Scotland let all businesses pick a retailer. Wales allows switching only if you gulp more than 50 megalitres a year. Northern Ireland still keeps water under one roof. If you qualify, you can shop for lower rates, greener perks, or smoother service, just like you do with energy through a business electricity comparison.

Steps 

Step-by-Step Guide: How to Check and Switch Your Business Water Supplier in the UK

Step 1: Check Your Latest Bill (5 min)

Pull out your most recent bill or log in to your online portal. You’ll find:

• Retailer’s name and account number.
• Contact details.
• Supply Point ID (SPID)—your unique water “meter number.”

Write these down; they are your passport for any switch.

Step 2: Use Fast Online Tools (10 min)

Head to Water UK’s postcode look‑up. Pop in your company’s postcode. The screen shows your wholesale and wastewater providers in seconds.

Ofwat’s Open‑Water “Find My Retailer”

Next, try the Open‑Water site. Enter your SPID or address. You’ll see:

• Your current retailer.
• Other approved retailers that serve your area.
• A handy link to their tariffs.

Print the page or save it; you’ll need it when you weigh offers.

Step 3: No Bill or Just Moved? (15 min)

If you can’t find a bill—maybe you just got the keys—call any licensed retailer. Give them the postcode. They can look up your SPID and tell you who you pay now. If no one can trace you, ring the local wholesale company. Councils can also check if you use a private borehole supply.

Step 4: Check if You Can Switch (10 min)

• England & Scotland: Almost every non‑domestic site can move today.
• Wales: Switch only if you cross the 50 ML yearly usage line.

Step 5: Compare Retailers & Decide (20 min)

Grab the full list of licensed retailers from Open‑Water or CCW. Compare three things:

Need a shortcut? Utility4Business can quote water and energy in one go. While we crunch your water numbers, we run a fresh business electricity comparison, or an electricity price comparison for businesses, so you see the full savings picture on one page.

Switching takes as little as 20 days and no pipe work. Your water keeps flowing the whole time.

Conclusion

Verifying your supplier keeps bills honest, service sharp, and surprises away. With the steps above, you can uncover your current deal, weigh new offers, and even bundle savings with a fresh comparison business electricity check from Utility4Business. Review your supplier once a year; markets move fast, and so can your savings.