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.

Designers Frequently Asked Questions


Q: What is CHAS' definition of a designer?

A: The CHAS National Management Board decided that prequalification as a designer applies to individuals or practices involved in architecture, civil, structural, building services engineering or building surveillance, and mechanical and electrical engineering.

Q: How long is a compliant assessment valid?

A: One year. Please note, if an assessor finds your application compliant you automatically receive a certificate of accreditation which also lasts one year.

Q: As a designer will I be assessed as a contractor or consultant (supplier) as well as a designer?

A: No. The assessment includes a review of the essential elements of your safety management system.

Q: Do you accept designer pre-qualification through any other schemes in the same way as you do for contractors or consultants (suppliers)?

A: No. Pre-qualification for designers is a specialist area, we do not recognise any other third-party schemes but this may change.

Q: I design and build. What are the implications?

A: You will need to pre-qualify as both a designer and supplier. This requirement will be subjected to a review after we have received information regarding your work projects.

Q: How long does an assessment take?

A: Once your application has been received with all supporting documentation and evidence, the assessors are contracted to complete the initial assessment within 15 working days.

Q: What does an assessment cost?

A: If you are applying as a Designer Principal Designer, please refer to the fee structure on the CHAS FEES Page. If applying as a group contact the CHAS administration team on 020 8545 3838.

Q: Who undertakes the designer assessments?

A: The assessor completing a designer pre-qualification assessment will have knowledge and experience in both design and construction.

Q: Will the assessor give me health and safety or design advice?

A: Assessors cannot act as an adviser as this would be a conflict of interest. They will inform you of a failure to achieve the required compliance standard and in some circumstances they may discuss issues with you by telephone. They will give written guidance about any concerns but this should not be mistaken as advice.