Setting the standard for over 30 years.

The UK's trusted standard for contractor compliance and risk management

For over 30 years, CHAS has helped shape higher standards in compliance, reduce risk and build safer working environments.

Trusted by organisations across the UK, we’re dedicated to making the world of work a safer place for everyone.

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The UK standard for health, safety and compliance

From pre‑qualification to ongoing compliance, CHAS helps you win more work and manage risk with confidence. Contractors can build their business on certification they’re proud of, while clients get fast access to over 32,500 verified, compliant contractors.

A founder member of Safety Schemes in Procurement and the first to offer the Common Assessment Standard, we set the benchmark for recognised, industry-ready compliance, trusted by leading organisations across construction, the public sector and beyond.

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Trusted by some of the UK's largest supply chains

CHAS for contractors

Get ahead by pre‑qualifying for tenders with recognised industry assessments trusted by hiring clients. CHAS helps you stay compliant, win more work and build your business with confidence, without unnecessary complexity.

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CHAS for clients

Access a network of over 32,500 certified, compliant contractors.
CHAS gives you a smarter way to meet industry standards, simplify compliance with a trusted contractor network.

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I would 100% recommend Veriforce CHAS to anybody thinking about becoming compliant as the overall assistance and service has made the accreditation process and gaining work with clients simple, easy and extremely cost effective. We simply couldn’t work with the blue-chip clients we do without Veriforce CHAS and the service they provide.

Dan Forrest, Operations Director, Style Moveable Partition Specialists Ltd

CHAS has become a must-have badge of credibility, an independently verified demonstration of compliance with all the required health and safety protocols around jobs.

Chris Cloherty, Operations Manager, Kemtile Ltd

The Common Assessment Standard from CHAS is really exciting. It offers smaller building firms a genuine opportunity to get involved in a wider range of projects.

CNS Consultancy Services

The benefits of CHAS far exceeded not only our expectations but also what we could possibly hope to achieve on our own. CHAS removes a lot of unknowns and allows us to delve into the granular detail of each business and how they perform and comply in certain areas.

David Attfield, Commercial Lead, Urban Splash

We saved over £1400 a year with CHAS Protect. Plus, it was easy to use – doing it online meant we could see exactly the cost of each cover. We could choose the cover that suited us best. We not only paid less for the same cover – in some areas it was better than our old policy! I’d happily recommend it to other CHAS members.

Dene Coupland, Managing Director, New Build Labour Ltd

I recommend CHAS to our clients as it seems to be the most recognised of the SSIP certifications. Even people who do not know what SSIP is have seen the distinctive stickers on thousands of builders vans. I would whole-heartedly recommend CHAS to anybody working in construction and I am about to assist my first non-construction customer through the process.

Gary Magee, Owner, GM Safety

The help and support provided by the customer service team at CHAS is second to none and I am always confident that my questions or requests will be understood and dealt with promptly and efficiently with the team taking ownership until a resolution is reached.

Lorraine Furbank, Business Support Manager, Avalon Abseiling Ltd

CHAS have enabled us to work with the clients we want to work with without any issues, giving us added credibility in the process, and they have been instrumental in enabling us to gain and maintain projects with many of the businesses we work with. I would have no hesitation in recommending CHAS to anyone thinking about becoming complaint.

Mark Brennan, Managing Director, MSB Flooring and Ceramics Ltd

CHAS for contractors

We make it easy for contractors to pre-qualify for tenders

Our three membership levels help you meet a range of industry standards with ease. As a member you can confidently pre-qualify for work with some of the UK’s largest hiring clients, opening up opportunities to grow your business without adding admin.

In-house audits aligned to industry standards

When you’re looking to pre-qualify for the best projects, it pays to choose a supplier with a proven track record. At CHAS our audits are aligned with all major construction legislation, plus the core industry standards CAS and SSIP (of which we’re a founder member).

Pre-qualify and bid for future projects

When you win more tenders, your business grows. CHAS makes is easier to achieve the recognised assessments hiring clients value most, turning pre-qualification into a real competitive advantage. It’s your passport to better bids and more business.

Contractors actively supported

With CHAS, you’re not just assessed, you’re actively supported. We provide practical, tailored guidance on the risks relevant to you and your trade, from stress management to manual handling and slips and trips, helping you prevent workplace injury and ill health before they occur.

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CHAS for clients

Simplify compliance with a contractor network you can trust

We make health and safety compliance simpler to manage, while ensuring your governance remains robust and reliable.

Our contractor audits are the industry benchmark, with question sets precisely aligned to key legislation (Procurement Act 2023, CDM Regulations, the Building Safety Act), as well as core industry standards SSIP and CAS.

CHAS clients get instant free access to the VeriforceONE Client Portal, which lets you quickly find qualified contractors, and actively monitor their compliance.

Setting the standard in in-house audits

Robust contractor compliance starts with the expertise behind the audits. CHAS audits are carried out by our own assessment specialists, aligned with all major legislation. It’s how we make compliance easy to manage, without ever compromising on governance.

Actively supporting your contractors

At CHAS we don’t stop at assessing contractors. We provide guidance on relevant risk areas, like manual handling and slips and trips. Going this extra mile helps you strengthen internal controls, shut down compliance gaps, and proactively address the causes of workplace injury.

Less time spent in contractor recruitment

Recruiting adds cost and takes up time. CHAS helps reduce both, giving you access to more than 32,500 quality contractors who meet recognised health and safety standards. You can quickly match contractors by location and verify compliance with confidence and build lasting, trusted relationships.

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