Find out which energy companies leave you on hold the longest when calling their customer service number and which ones answer calls to new customers faster
Which? reveals the reality behind the saving figures from Nest. See our review of the Nest thermostat, and other smart thermostats, such as the Hive thermostat
Which? reviewBest boilers
Use our expert reviews to find a Best Buy boiler to suit you and stay toasty all winter long.
Which? guideCheaper energy bills
Save money on your gas and electricity bills, and calculate how much different appliances cost to run.
Essentials & tips
Energy companies rated
Discover the results of our annual energy company survey to see which are the best - and worst - suppliers around.
Should you buy solar panels?
See our guide to solar panel systems, from the types to the costs and savings, to find out whether it's right for you.
Get the best price for heating oil
Our guide talks you through buying a heating oil tank, maintaining and fixing one, and how to get the best price.
Energy saving tools and calculators
From washing machines to batteries, find out how to recycle electrical items with our product recycling tool.
Find out how much your appliances are costing you to run with our easy to use cost calculators.
Washing machine repairs tool
Has your washing machine developed a fault? See if it can be fixed using our free troubleshooter.