Switch your water retailer. Recover bill errors. Stop the leaks.
The UK business water market has been deregulated since 2017. Most businesses have never switched. Many are paying for water that's leaking. Some are being billed in error. We fix all three.
- Up to 50%
- Saving for large water users
- 1 in 8
- Business water bills contain errors
- +83%
- Forecast rise by April 2029
Water prices are rising every April. The window to do something is Q1.
Wholesale water prices rose roughly 14% in April 2024 and 22% in April 2025. Retail prices rose alongside as retailers managed higher operating costs and protected margins.
In December 2024, Ofwat confirmed that water costs will keep rising until at least April 2029 — partly to fund major UK sewerage infrastructure investment. By April 2029, water costs are expected to be around 83% higher than 2023 levels.
Reviewing before April gives you more control over contract structure and budget certainty. After April hits, flexibility reduces sharply across all retailers — they're busy passing on increases, and bespoke terms become harder to land. So the work matters, and so does the timing.
What the TUS water team actually does
Switch retailers in a deregulated market
Since 2017, business water customers in England and Scotland can choose their retailer. We run a competitive process and switch on your behalf — savings of up to 50% for large users are common.
Billing audit and recoveries
Roughly 1 in 8 business water bills contains errors. We audit your historic invoices and recover overcharges — typically that pays for itself before the new contract even starts.
Usage analytics and leak detection
Smart water meters and loggers reveal continuous overnight usage (almost always a leak) and unusual consumption. Stopping a leak you didn't know about is the highest-ROI water work we do.
Consolidated billing across sites
Single retailer, single bill, single account manager across all your sites — instead of a different incumbent per region. Procurement and accounts payable both thank you.
Conservation measures with ROI
Low-flow fixtures, automatic shut-offs, greywater recovery, behavioural change. We recommend only what pays back inside a sensible window — and project-manage the install.
April rises priced in
Water prices rise every April. We review portfolios in Q1 to lock in structure and certainty before the new tariffs land. After April, flexibility drops sharply.
The trajectory is up. The case for action is up too.
April-on-April wholesale and retail rises (figures vary slightly by region and retailer). Increases are funding major investment in UK sewerage infrastructure to reduce river contamination — but the costs are being passed on to your bill.
From bill audit to in-life management
Five steps. Most clients see recoveries before the new retailer goes live.
- 1
Bill audit
Two years of invoices reviewed line by line. Misreads, misclassifications, drainage errors — surfaced and quantified.
- 2
Usage profiling
Where smart meters or loggers exist, we profile consumption. Where they don't, we install them. Leaks and waste become visible.
- 3
Retailer competition
We take your portfolio to market across the licensed business retailers. Recommendation in writing.
- 4
Switch and recover
We project-manage the retailer switch, and pursue any historic overcharges in parallel. You sign things; we chase things.
- 5
Manage in-life
One account manager. One bill. Anomalies investigated. Conservation measures recommended on data, not on assumption.
Turn complex energy data into clear, simple, cost-saving decisions.
Yolk is our free AI-powered portal for UK business energy. Connect your sites, benchmark your rates, see where you're overpaying, and get alerted before contract renewal or unusual usage costs you money.
- Live multi-site dashboards
- AI insights and benchmarks
- Real-time usage and contract alerts
- Renewable & switching suggestions
Free. No setup fees. No contract. Live in minutes.
- Renewal window opens in 73 days
- Out-of-hours usage 18% above baseline
- Wholesale gas dipped — fix window open
Business water — frequently asked questions
Worth a quick conversation before April?
Send us two years of water invoices and we'll run a free audit — billing errors, switching opportunities and leak indicators flagged in writing.