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Heating & energy

The best energy firms for online service

The best energy firms for online customer service, as revealed by the Which? energy companies satisfaction survey and undercover research. Plus we list whether firms offer live chat, chatbots, Facebook messenger, Twitter and email.

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Revealed: the terrifying smoke alarms that will fail when you need them

Four smoke alarms that are widely available online have recently failed all eight smoke detection tests carried out by Which?. The alarms pose a danger to anyone who owns them...

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Is it worth switching energy supplier for £50 reward?

Bulb, Good Energy, Octopus, Ovo and others are offering cash rewards to tempt you to switch energy supplier. But why are they paying out and is it too good to be true? We reveal what you should consider before you follow the money.

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Top five cheapest energy deals for May 2019

Compared with last month, you could save £50 more by switching energy supplier, Which? analysis reveals. Find out which energy firms will save you money or compare gas and electricity prices to find the best energy supplier for you.

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Could you cover the cost of a new boiler if yours broke?

The average cost of a new boiler is around £2,500 and, according to the survey, the average amount UK households have set aside is just £765.

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Energy supplier switching problem? You might be due compensation

New rules mean gas and electricity companies have to pay compensation to energy customers who face switching problems, including being switched without their permission or not getting their money back after their final bill.

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Failed energy firms leave customers facing higher bills and missing refunds

More than 800,000 energy customers have been moved to new suppliers after theirs stopped trading. But some customers face price rises, are struggling to get their money back and are frustrated about their gas and electricity bills.

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Why the price of your fixed energy deal isn’t as fixed as you think

Customers signed up to fixed energy deals can still see their gas and electricity bills rise. Find out why – and how to keep your energy bill in check. Or compare gas and electricity prices to see if you could save money on energy.

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Energy switching complaints on the rise

Energy customer complaints about switching supplier are on the rise. The Ombudsman only received more complaints about energy bills. Find out the best and worst energy companies to switch to, using exclusive Which? research.

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Which? carbon monoxide detector giveaway saves a life

In October 2018, we gave 1,000 carbon monoxide (CO) detectors to a handful of Which? Trusted Traders to offer to their customers who didn’t have a working alarm. Boiler manufacturer...

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