Utility Warehouse

Utility Warehouse (UW) has more than 1 million customers across the services it sells. Its customers get all of its services bundled into one bill. 

Utility Warehouse has a unique business model compared with other energy providers. To access its cheapest prices, customers must buy multiple utilities in a grouped bundle. 

This can include a combination of electricity, gas, broadband, mobile and home and boiler insurance.

This unusual approach can make it hard to compare prices. Before agreeing to a tariff, we recommend you check how much you'd pay for each of these services individually if you bought them through other providers, to make sure you're getting a saving overall. 

UW offers customers a cashback card, which earns them cashback of up to 10% at a range of retailers. The cashback you earn is taken off your monthly bill.

The UW Price Pledge guarantees that customers who buy three or more services and use its cashback card can be paid double the difference if they don't save money in their first year. 

More than 68,000 customers are UW Partners. This means they get paid when they sign up new customers.

Use our free tool to compare energy prices and check whether you could save money with a fixed deal.

Utility Warehouse score 

We combine the results of our customer survey with an in-depth assessment of companies’ behind-the-scenes practices and policies to give you an overall view.

Take a look at our table below to see our score breakdown for Utility Warehouse:

Here's how Utility Warehouse's customer and policy assessments break down:

Find out how Utility Warehouse compares with other energy companies – click to see our full results of the best and worst energy companies.

Which? verdict on Utility Warehouse

• Pros: Above average score in our behind-the-scenes assessment, with full marks for providing customer support for those who need it
• Cons: Best prices require signing up to broadband, mobile and utility bundles, so you'll need to make sure your bundle represents a good deal for you overall

Utility Warehouse customer review

Utility Warehouse ranks 10th out of 17 energy companies when rated by its customers in our annual survey of 11,945 members of the public.

Its customer score (72%) was average and its star ratings were middling, with a mix of three and two stars. It received three-star ratings for overall customer service, ease of contacting, providing customers with accurate energy payments, the clarity of statements and value for money. In the other two areas – customer communications and the usefulness of its communications about energy costs – it received two-star ratings. 

Despite slightly lack-lustre star ratings, Utility Warehouse got mostly good comments from its customers in our survey. One said: 'They call you back when they say. They update you regularly. They checked back to ensure all was done.'

Another told us: 'They’ve got exceptional customer service and their response to complaints is top notch.'

Utility Warehouse customer service

Customers' feedback in our survey gave Utility Warehouse a fair three-star rating for overall customer service. Only four other suppliers scored higher – 100Green, Octopus, E (Gas & Electricity) and Sainsbury's Energy, which all received four stars. These are the Which? Recommended Providers for 2026.

UW wasn't one of the best in our behind-the-scenes assessment of the customer service setup when you contact it compared with other firms, receiving 7 out of a possible 12 points. One reason for this is that it doesn't offer a dedicated live chat option, although it does offer a WhatsApp service.

Utility Warehouse complaints

Some 5% of the Utility Warehouse customers in our survey who said they had engaged with the company in the past year did so to make a formal complaint. This is slightly below average when compared with other providers in our survey. 

Our Utility Warehouse supplier assessment

In September-November 2025 we looked at five aspects of suppliers' business practices and procedures. Examples of some criteria within each category include: 

• Complaints – how many complaints suppliers get and how quickly they resolve them
  
• Contacting your supplier – including how and when you can get in touch, call waiting times, and the quality of self-service help online
• Help for customers who need it – including those in vulnerable situations, those who use prepayment meters, those who need materials in languages besides English, and web accessibility 
• Smart meters – including performance against 2024 smart meter targets and the proportion of customers' smart meters actually operating in smart mode
• Switching – how well suppliers handle switching.

We did this using a combination of the responses to a survey we sent to suppliers and our own assessments.

Utility Warehouse received an above average score (65%) in our assessment of 17 suppliers' practices this year.

It received top marks for how it supports customers who need it (10 out of a possible 10) but didn't do well for how it handles complaints, with just 6 out of 15. 

UW Hardship Fund

Utility Warehouse works with Citizens Advice Plymouth to support customers who are struggling through its UW Hardship Fund. 

Eligible customers can access:

• help with budget planning
• energy efficiency advice
• debt advice
• benefit entitlement review
• financial assistance.

Does Utility Warehouse support prepayment meters?

Yes, you can be a Utility Warehouse customer with both a traditional prepayment meter and a smart prepayment meter. Here's what you need to know:

• You can top up at PayPoint or Payzone outlets and Post Offices if you have a traditional prepayment meter.
• If you have a smart prepayment meter, you can top up online, using the Utility Warehouse app or at a PayPoint retailer.
• Smart prepayment customers can access £10 of emergency credit per fuel if you have less than £1 left. It's £20 per fuel if you have a traditional meter. You'll need to repay it when you next top up.
• Friendly credit is available for all prepayment customers from 4pm to 10am Monday to Friday and all day at weekends and Bank Holidays. This means your power or gas won't go off if you're not able to get to the shop to top up.

Find out whether prepayment energy is right for you.

How sustainable is Utility Warehouse?

Sustainability credentials are important when choosing an energy supplier for two thirds of those responsible for choosing their provider. That’s according to our online survey of 3,000 UK adults in August 2024.

So we factor in a range of sustainability criteria in our Eco Provider assessment. We are next running this research in 2026.

Here’s how Utility Warehouse fared:

• Proportion of renewable electricity sold to customers: 0.2% (who aren't on green tariffs)
• Doesn't generate renewable electricity.
• Doesn't offer time-of-use tariffs.

Find out more about the differences between energy companies' renewable electricity, and find out how we assessed energy suppliers for sustainability.

Based on information supplied by companies in August 2024 and their most recent published fuel mixes, where available.

Making your home more energy efficient will save money on your bills in the long term and lower your carbon footprint. Get started with our guides to home energy efficiency.