Speak to our team
Or call us on 029 2267 0040
Mon to Fri: 9am - 5pm. Standard call rates apply.
Get extra recognition
You’re already an Institute of Carpenters member. But with the added endorsement of Which? Trusted Traders, you’re even more likely to stand out from the rest and boost your business. IOC members get 50% off the monthly membership fee for the first six months *Offer open to businesses with 29 employees or less, must have been trading for longer than 6 months. Eligibility criteria apply.
Why joinShow you mean business
Millions of people trust Which? – when they see our endorsement logo on products and services they use it to make better buying decisions. Same with you – when they see you displaying our logo they’ll know you’re a trader they can choose with confidence.
Be rigorously assessed With its comprehensive financial, behavioural, competency and reference checks, our assessment asks more of you than other trader schemes – and you’ll gain a lot from the process. 
Stand out from the rest We don’t endorse just anyone. Your standards must meet ours before you can display our logo on your quotes, marketing materials, workwear, vehicles and more. 
Reach more people online A strong online presence gets you noticed, so we’ll show you how to attract more people and convince them to choose you before you’ve even met them. 
Display genuine reviews To give people confidence that you’re as good as your customers say you are, our moderators make sure every review posted on your profile page is genuine. Work to a code of conduct This agreement makes it easier for you to do your best work and to settle disputes professionally via our team and the ombudsman services. 
Get full access to Which? Access all our product reviews, plus our app, plus Which? magazine, plus our chat-based buying advice – usually £99 a year, your subscription will carry no charge. 
Becoming a Trusted Trader
Apply today, and if successful you could be a fully endorsed Trusted Trader within 30 days1. Pre-eligibility questions
Chat to our advisors to check you’re eligible to join by answering 6 simple questions. You’ll then need to pay the assessment fee.
2. Call us to start your application
Check to see which documents we’ll need from you.
3. We run checks
Pass our financial health and credit checks, trading history checks and other background checks.
4. Get assessed
One of our trading standards professionals will start assessing your business. They’ll need several recent customer references from you, plus your permission to contact those customers. For smaller companies or sole-traders we will conduct a telephone assessment.
5. Final stage
You’ll receive an assessor report that outlines actions to complete before we can endorse you. We’ll also check your customer references. Once we’re satisfied all our conditions are met, a senior member of our team will endorse you as a Which? Trusted Trader.
Support for endorsed traders
Your account manager will help you make the most out of your endorsement, and our welcome pack contains everything you need to show customers you’re a Which? Trusted Trader. You’ll then be able to begin building a strong online profile on our website.
What traders say
Our Which? accreditation reinforces our brand values of honesty, integrity, reliability, and teamwork.
Mark Edwards, Managing Director, Timberwise Trusted Trader since 2016
The assessment process with Which? Trusted Traders was thorough and rigorous, ensuring that we met stringent criteria for competence, customer service and business practices. The assessment is not just a formality; it genuinely reflects the commitment of Which? Trusted Traders to promoting excellence and consumer confidence in our industry. The endorsement carries a weight that resonates with consumers, providing them with assurance and peace of mind when choosing a service or product. Taskforce Maintenance Ltd 28th Feb 24
Having the support from the Which? Trusted Trader Scheme helps promote us on a larger scale and gives people the security that we are part of a trusted scheme that promotes good quality workmanship, just like we do and we offer. The scheme offers continued support through an assigned rep that you can contact and also helps resolve disputes should they arise. This sets you apart from the rest - as its a scheme for life, not just for the moment.
Regal Kitchens 5th Feb 24
The assessment was harder than I thought it would be, but also eye-opening. I actually learned quite a bit through the process. The business has gone from strength to strength; I couldn’t imagine not having Which? behind us now. It sets you apart from the rest. People trust Which? and by us being in their scheme, it means they trust us from the get-go.
Monsta Windows 12th Jan 24
How much?
The cost depends on the size of your business. We have an initial one-off payment which goes towards the cost of your assessment - we cover the rest. It’s non-refundable, so if you don’t pass or you decide not to join, we can’t give you the money back.
| Number of employees | Assessment fee (Non-refundable) |
Pay monthly (Direct Debit - incl. Vat) |
Pay annually (Direct Debit - incl. Vat) |
|---|---|---|---|
| 0-3 |
£240
|
£64 | £770 |
| 4-9 | £83 | £994 | |
| 10-19 | £110 | £1,317 | |
| 20 and over | A higher rate applies, please call 029 2267 0040 | ||
Common questions
What makes Which? Trusted Traders different?
Unlike other schemes, we do more than just check references and qualifications. Every business that applies is interviewed by an experienced trading standards professional to make sure that they meet our high standards. So, when customers see the Which? Trusted Traders logo, they know they’re using a trader that they can count on.
How long does it take to get endorsed?
We aim to get you endorsed within 30 days of applying to join the scheme. But this depends on how quickly you can send us the documents we need, and the dates you’re available for our assessor to visit you.
What is your Code of Conduct?
Our code of conduct sets out what we expect from the traders we endorse, and helps to protect consumers. All the traders on the scheme sign up to our code of conduct. You can read it here.