Which? | Expert testing, reviews and advice - Which?
Which? works for you reviewing products and services, so that you make the best purchase decisions for your needs.| Which?
Which? works for you reviewing products and services, so that you make the best purchase decisions for your needs.| Which?
Energy companies take different approaches to selling renewable electricity. We compare them so you can find out which is best for you – plus how sustainable they really are| Which?
Find out what thousands of customers think of their suppliers and use our research to choose the best energy provider for you| Which?
Energy companies need to be on top of their game to earn a Which? Recommended Provider (WRP) accolade. Find out which firms nabbed a WRP for 2025.| Which?
What you need to know about prepayment meters for energy, including how much it costs| Which?
The policies and standards that underpin our products and services| Which?
Which? EnergyMake your home more energy efficient| Which?
We test carbon monoxide detectors so that we can tell you which are ineffective or unreliable, and which you can rely on to keep you safe| Which?
Keep your boiler running efficiently by making sure its services are up to date. We've asked customers to tell us how they rate boiler service companies, plus get our tips for making the most of your appointment.| Which?
Why you probably don't need boiler cover – and, if you do still want it, how to save money and avoid being charged over the odds| Which?
How much money could you earn from your solar panels and other renewable energy?| Which?
Ensure a bumper harvest this summer with one of our Best Buy tomato feeds that's been rigorously trialled by Which?| Which?
Octopus Energy says it is using technology to make energy 'fair, clean and simple for all'. It's well liked by customers and experts, making it a Which? Recommended Provider.| Which?
Effective ways to make your home more energy efficient and save money on gas and electricity| Which?
Discover the best banks and current accounts as rated both by UK customers and our experts. We help you avoid the worst banks for customer service| Which?
