The Contractors Health and Safety Assessment Scheme

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This certainly seemed to prove an easier and more painless way to attain our accreditation.

Kings Security (Full Application)

The new process was clear, very quick and easy to use.I would not hesitate to use this service when our accreditation comes up for renewal next year.

Cityspec Specialist Pest Management Solutions Ltd (Deem To Satisfy)

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A high percentage of new business is generated through successful tenders. Over the years the number of lead contractors that make CHAS registration a prerequisite in the tendering stage has risen substantially. One of our biggest customers accepts CHAS as an alternative to having to go through their own health and safety questionnaires. This allows us to streamline our tendering process to maximise the number of projects we can work on.

Greens Decorating Contractors Ltd.

With my company being small, the assessment works well for me, but also keeps me up to date with all my H&S. Without using CHAS some of these things could get forgotten about, so would cost my company in contracts in the future.

T Brown Joiners.

Joining CHAS really made us consider out H&S procedures in more detail and having to document them all instantly makes them easier to maintain and renew.

Ecological Land Management Ltd.

CHAS is a great service which has helped my company become better and which has resulted in us winning more contracts of work. I have also recommended CHAS to other companies I work alongside who have now also become CHAS accredited.

MA Brickworks Ltd.

The accreditation process itself is a great way of monitoring the H&S within your own company, so by itself forces training in areas you may not be familiar with, so money well spent.

Probe Lockers.

I would just like to thank you for your help and expertise throughout this whole process. My experience with CHAS was great from start to finish.

Autism Hampshire.

We first achieved our CHAS accreditation in 1998 and have found it very useful as a means of demonstrating that we comply with current health & safety law in the construction industry. CHAS is recognised across the whole of our industry so it reduces the amount of time and resources needed to pre-qualify for projects.

Concrete Repairs.

The Contractors Health and Safety Assessment Scheme

CHAS is a visible and credible leader in Health and Safety management. As an organisation, we help businesses and organisations manage their Health and Safety risks and safeguard their reputation.

We offer cost-effective, easy to use compliance services, setting industry benchmarks and providing reassuring, accurate and efficient support to all our clients.

Our people are professionals who put our clients first, helping them to work safer and playing a part in their success.

Together we improve businesses, create business opportunities, drive industry standards and make the world of work safer.

Completing your CHAS Assessment

If you’re a Contractor looking to complete a CHAS assessment, please select the Apply Now/Renew option in the menu bar or apply here.

Our electronic application system will allocate you a login ID and allow you to upload documents and retrieve your application at any time.

If you’re a returning contractor and have already registered with CHAS, you can log in with your Accredited Contractors ID (supplied upon completion of your last assessment).

Please click here if you have forgotten your Login ID.

Important information regarding changes to the duties under the CDM Regulations

As you will be aware the CDM 2007 regulations were superceded by the CDM 2015 Regulations on the 06 April 2015.

Under the new Regulations the CDM-Coordinator role will disappear when the transitional arrangements end on 6 October 2015 and a new role of Principal Designer came into existence on 06 April 2015.

See more

Need help with your CHAS registration?

Our friendly, qualified Health & Safety assessors
are committed to improving Health & Safety and pride themselves in guiding companies in the right direction.

Find out more or apply now

The largest growing Health and Safety assessment scheme in the UK

CHAS has 870 buyer members and over 70,000 suppliers on its database. As such, it is the UK’s fastest growing Health and Safety assessment scheme.

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Engineers shaking hands

About CHAS

CHAS is the established market leader for health and safety pre-qualification in the UK. The scheme is available to clients (organisations looking to hire competent contractors) and to contractors who want to offer their goods and services to client organisations.

CHAS is a founder member and past Chair of Safety Schemes in Procurement (SSIP) Competence Forum. To find out more, please visit or click here for full details.

Roofers at work


CHAS isn’t just for construction companies. As an organisation, we assess health and safety for all types of suppliers, from care services to demolition contractors, designers and consultants.

The aim of the scheme is to save time and resources by avoiding unnecessary duplication in relation to the CDM Core Criteria that comprise the first stage of competence assessment.

Developer and foreman


Our client members include public sector organisations such as government departments, health trusts and the emergency services, in addition to large private companies with a supply chain, for example Royal Mail Group Ltd, Kier Group PLC and Mitie Group PLC. Ultimately we complete the initial Health and Safety application process for buyers, saving time and resources for all involved in the process.

If you think you are eligible to become a CHAS client, please complete the request for client access form . A member of the CHAS team will make contact within three working days.

Request Forms

Please hover over the selection below to get more info


Want to check your supply chain ?

Request for access form

If you think you may be eligible please complete the request for access form. A member of the CHAS team will make contact within three working days.


Apply for an assessment

Please click here to apply for an assessment

Useful Information

New Domestic Clients

Are you having work done on your home?

Click here to view information for domestic clients

Upcoming Events

CHAS will be exhibiting/attending the following events. Please do visit our stand and meet some of the team

Please click on each month below to get more events info

South Wales Safety Groups Alliance
Cardiff City Stadium – 13th

USHA Spring Conference
Belfast Hilton Hotel - 20th - 22nd

Toolfair Exeter
Westpoint, Exeter - 21st - 22nd

North England Build
Manchester Central Exhibition Centre - 27th - 28th

Kent 2020 Vision
Detling Centre, Maidstone - 11th

PHEX - The plumbing & heating exhibition
Alexandra Palace, London - 18th - 19th

Housing Services Conference
Lancashire County Cricket Club, Emirates Old Trafford – 26th

Safety & Health Expo
Excel London - 21st - 23rd

Toolfair Harrogate
Yorkshire Event Centre, Harrogate - 23rd - 24th

CIH Housing 2016
Manchester Central Exhibition Centre - 28th - 30th

LGA Conference
The Bournemouth International Centre - 5th - 7th

The Energy Event
NEC Birmingham - 13th -14th

NHF Housing Exhibition
ICC Birmingham - 21st - 23rd

Toolfair Coventry
Ricoh Arena, Coventry - 22nd - 23rd

Fencex 2016
NAEC, Stoneleigh, Warwickshire - 12th

Health & Safety North
Bolton Arena, Bolton - 12th - 13th

The Build Show
NEC Birmingham - 18th - 20th

London Build
London Olympia - 26th - 27th

November 2016

East Kent B2B
Leas Cliff Hall, Folkstone – 1st

Toolfair Sandown
Sandown, Esher - 3rd - 4th

HOMES 2016
London Olympia – 16th-17th

Scotland Build
SECC, Glasgow – 23rd-24th