CHAS
A UK health-and-safety accreditation for contractors. CHAS-accredited businesses have had their health-and-safety policies and processes independently assessed.
Verify on the official register →
Based on public register and directory records collected up to 27 Jun 2026. Not an official membership count.
Check a specific trader
Thinking of hiring someone? Confirm their current CHAS status on the official register, then run their name through our Cowboy Checker to see their reviews, credentials and company record in one place.
Where CHAS holders are
- UK
Trades that hold it
Builder · 38Hvac · 27Landscaper · 18Electrician · 15Window / Door Fitter · 13Plumber · 7Carpenter / Joiner · 7Roofer · 7Security Systems / CCTV · 7
CHAS holders with review evidence
These businesses hold a current CHAS record and have customer reviews we can show — a small slice of all holders, not the register itself.
Common questions
What is CHAS?
A UK health-and-safety accreditation for contractors. CHAS-accredited businesses have had their health-and-safety policies and processes independently assessed. (Certification scheme.)
How many tradespeople hold CHAS?
We track 165 tradespeople with a CHAS record, based on register and listing data collected up to 27 Jun 2026. This reflects the public records we have collected, not necessarily the scheme's complete membership.
How do I check whether a specific trader holds CHAS?
Check the official register at https://www.chas.co.uk/, or look the trader up on MyTrustedTraders — profiles show the credentials we have found for them, alongside reviews and other public evidence.
Keep checking
All certificationsCowboy CheckerCompany Health CheckCredential Guide by trade
We show what the public records say, with dates — a listing here is not an endorsement, and absence from our data does not mean a trader is unregistered. Always confirm current status with the scheme before you hire.