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How being a Which? Trusted Trader can save lives

We teamed up with our traders to protect consumers from a hidden danger in their homes.

In this article

As professional plumbers and heating engineers, you’ll be all too aware of the dangers of carbon monoxide.

But Which? research* found that nearly four in ten British households still don’t have a carbon monoxide alarm.

To raise awareness of this problem, Which? joined forces with some of our Trusted Traders. We gave them 1,000 free alarms to hand out to customers during the winter – a campaign that we promoted across Which? websites and magazines.

It wasn’t long before one of our traders helped a customer to avoid a potential disaster.

‘The alarm was constantly going off’

After working on a heating system in a Victorian property and leaving the customer with their free CO alarm, heating engineers from Blue Flame Services, in Cumbria, were called back almost immediately.

The customer complained that the alarm was constantly going off and might have been faulty.

In fact, further investigation revealed that three of the four gas fires that had already been in place in the customer’s property were leaking dangerous levels of carbon monoxide.

Despite suffering from migraine-style headaches for a number of weeks beforehand, it hadn’t occurred to the customer that it could be the gas fires in her home that were slowly poisoning her.

Thanks to our carbon monoxide alarm giveaway, the fires were decommissioned until they could be properly serviced, and the customer didn’t suffer anything worse than headaches.

Join the fleet – become a Which? Trusted Trader

A heating engineer examining a boiler

We’re more than just a logo to add to your website. We work with you to protect consumers – whether it’s from dodgy gas fires or rogue traders.

The Which? Trusted Trader logo is a sign of reputation and trust; recognising good traders and making it easier for prospective customers to hire a trader they can trust.

We’re looking for like-minded, customer-focused businesses that want to be endorsed by us and have what it takes to wear the Which? Trusted Trader logo.

Benefits of membership include:

  • a searchable profile on our site where you can showcase your work and customers can post reviews of your services
  • a dedicated account manager to help you make the most of your endorsement
  • use of our logo on your workwear, vehicles, website, social media and more.


If you’re a CIPHE member, you’ll receive 50% off your first six months’ membership with Which? Trusted Traders.

To take advantage of this offer, request a call back or get in touch with our team on 0117 456 6062 for more information. Lines are open Monday to Friday, 9am-5pm.

*Based on a survey of 2,057 members of the general public in July 2018.