# Which? Trusted Traders

An endorsement scheme run by the consumer group Which?. Endorsed traders pass an assessment that includes a check of business and financial records and an interview, and customers get access to an independent dispute-resolution service.

- Type: Platform vetting
- Traders with a Which? Trusted Traders entry in the public data we track: 1,298
- Data collected up to: 16 Jul 2026
- Official register: https://trustedtraders.which.co.uk/
- Page: https://mytrustedtraders.com/certifications/which-trusted-traders

Counts reflect collected public entries, not official membership totals. Absence from this data does not mean a trader is unregistered.

## Where holders are

- London: 299
- Bromley: 20
- Nottingham: 18
- Croydon: 17
- Glasgow: 17
- Bristol: 15
- Sheffield: 14
- Enfield: 13
- Sutton: 12
- Birmingham: 12

## Trades that hold it

- Electrician: 235
- Builder: 222
- Plumber: 187
- Roofer: 107
- Window / door fitter: 100
- Heating engineer: 89
- Painter / decorator: 78
- Carpenter / joiner: 54

## Which? Trusted Traders holders with review evidence

A slice of holders that also have customer reviews on MyTrustedTraders. This is not the register itself.

- **Lock Around The Clock**: locksmith · Hemel Hempstead · 4,774 reviews. https://mytrustedtraders.com/traders/lock-around-the-clock
- **Alaskan Windows Ltd**: window company · Sutton · 2,551 reviews. https://mytrustedtraders.com/traders/alaskan-windows-ltd-2
- **Absolute Alarms & Security Systems Ltd**: security systems · Essex · 2,430 reviews. https://mytrustedtraders.com/traders/absolute-alarms-security-systems-ltd-2
- **The Pure Water People**: plumber · Bristol · 1,843 reviews. https://mytrustedtraders.com/traders/the-pure-water-people
- **Advanced Clean**: cleaner · Southampton · 1,802 reviews. https://mytrustedtraders.com/traders/advanced-clean
- **Ewell Window Company**: window company · Ewell, Kingston upon Thames · 1,483 reviews. https://mytrustedtraders.com/traders/ewell-window-company
- **Palmer Maintenance Services**: hvac · Bromley · 1,275 reviews. https://mytrustedtraders.com/traders/palmer-maintenance-services
- **Quality Clean**: cleaner · Coulsdon, Sutton · 1,125 reviews. https://mytrustedtraders.com/traders/quality-clean
- **Elwyn's Windows Ltd**: window company · London, Sutton · 1,027 reviews. https://mytrustedtraders.com/traders/elwyns-windows-ltd-2
- **AMT Heating Ltd**: plumber · Sutton · 1,049 reviews. https://mytrustedtraders.com/traders/amt-heating-ltd-2
- **Elite Electrics (UK) Ltd**: electrician · Potters Bar, Enfield · 968 reviews. https://mytrustedtraders.com/traders/elite-electrics-uk-limited-2
- **GraftinGardeners Ltd**: gardener landscaper · London, Wandsworth · 935 reviews. https://mytrustedtraders.com/traders/graftingardeners-ltd

## Common questions

### What is Which? Trusted Traders?

An endorsement scheme run by the consumer group Which?. Endorsed traders pass an assessment that includes a check of business and financial records and an interview, and customers get access to an independent dispute-resolution service. (Platform vetting.)

### How many traders hold Which? Trusted Traders?

We track 1,298 traders with a Which? Trusted Traders entry, based on register and listing data collected up to 16 Jul 2026. This reflects the public entries we have collected, not necessarily the scheme's complete membership.

### How do I check whether a specific trader holds Which? Trusted Traders?

Check the official register at https://trustedtraders.which.co.uk/, or look the trader up on MyTrustedTraders. Profiles show the credentials we have found for them, alongside reviews and other public evidence.