What Qualifications Should a Scaffolding Contractor Have?
Scaffolding is one of the few trades where getting it wrong doesn’t just mean a poor job, it can mean somebody falls. That’s why the industry is built around a clear ladder of qualifications and accreditations, and why checking for them isn’t optional box-ticking. It’s the single easiest way to protect yourself, your project, and everyone who steps foot on that structure.
Below is a complete breakdown of what to look for, split into three areas: qualifications the individual scaffolders should hold, accreditations the company should hold, and the practical questions you should be asking before you sign anything. This applies whether you’re planning domestic scaffolding for a home renovation or commercial scaffolding for a larger build.
Individual Qualifications: What the People on Site Should Hold
CISRS (Construction Industry Scaffolders Record Scheme)
CISRS is the recognised training and card scheme for scaffolders in the UK, and has been for over 50 years. It works as a progression rather than a single test:
- Trainee/Labourer — working under supervision, learning the ropes
- Part 1 and Part 2 — structured practical and theory training
- CISRS Scaffolder Card — full independent working rights
- Advanced CISRS + NVQ Level 3 — required for complex work such as temporary roofs, suspended scaffolds, and system designs, and for anyone supervising a crew
A card isn’t a formality; it’s proof that the person building your scaffold has been trained, assessed, and signed off against a national standard. Ask to see the cards. A reputable contractor will have no problem showing you.
CITB Health, Safety and Environment Test
Before anyone can even start the CISRS pathway, they need to pass the CITB test, which checks understanding of site hazards, safety law, and best practice. It has to have been passed within the last two years to count. It’s a small thing, but it’s the gatekeeper for everything that follows, no valid test, no entry into formal scaffolding training.
CSCS Card
The Construction Skills Certification Scheme card isn’t a legal requirement, but in practice it’s non-negotiable, most main contractors and housebuilders won’t let anyone on site without one. For scaffolders, the CISRS card doubles up as CSCS-recognised proof of competence, valid for five years.
PASMA and IPAF (Often Overlooked)
Most guides on this topic stop at CISRS, CITB and CSCS, but a lot of real-world jobs also involve mobile access towers or powered access equipment, and that needs separate training:
- PASMA covers the safe assembly, use, and dismantling of mobile access towers.
- IPAF covers the safe operation of mobile elevating work platforms (MEWPs), cherry pickers, scissor lifts, and similar.
If your project involves either, ask whether the team holds these. It’s a common gap, and one that catches people out.
CISRS Scaffold Inspection Training Scheme (SITS)
Building scaffolding safely is half the job, inspecting it properly is the other half. UK regulations require scaffolding to be inspected before first use, every 7 days after that, and after any event that could affect its stability (a storm, an impact, an alteration). That inspection has to be carried out by someone properly trained to do it.
SITS is the recognised qualification for this. It covers spotting defects, understanding legal duties, and keeping accurate inspection records, and it’s valid for five years before a refresher is needed. If a contractor can’t show you who on their team holds SITS, ask why.
Company Accreditations: What the Business Itself Should Hold
Individual cards prove the people know what they’re doing. Company accreditations prove the business has the systems, insurance, and processes to back it up.
CHAS (Contractors Health and Safety Assessment Scheme)
CHAS independently assesses a company’s health and safety policies, procedures, and training against recognised standards, including the Health and Safety at Work Act and CDM Regulations. Many councils, schools, and public sector clients won’t accept a bid without it.
NASC Membership
The National Access and Scaffolding Confederation is the industry’s main trade body. It’s a voluntary membership, but a demanding one, members are audited on equipment, training, insurance, and working practices. NASC also publishes the two documents that underpin safe scaffolding across the UK: SG4 (fall prevention) and TG20 (design and erection guidance for tube and fitting scaffolding). A contractor that’s a genuine NASC member has been vetted by people who know exactly what to look for.
Public and Employer’s Liability Insurance
This one gets missed constantly, and it shouldn’t. Ask for proof of:
- Public liability insurance — covers damage or injury to third parties or property
- Employer’s liability insurance — a legal requirement if they have staff, covering injury to their own workers
Any legitimate contractor will send you a certificate without hesitation. If they hesitate, that’s your answer.
Questions to Ask Before You Hire
A quick checklist for your first conversation with any scaffolding contractor:
- Can I see CISRS cards for the operatives who’ll be on site?
- Who on your team holds SITS, and how often is the scaffold inspected once it’s up?
- Are you CHAS accredited, and are you a member of NASC?
- Can you send over your public and employer’s liability insurance certificates?
- If this job needs a tower or MEWP, is the team PASMA/IPAF trained?
- Who do I contact if I have concerns once the scaffold is erected?
If a contractor answers all six without blinking, you’re in safe hands.
Choosing With Confidence
Every credential above exists for the same reason: to prove that the people and the company behind your scaffolding know what they’re doing, and can prove it on paper as well as on site. It costs nothing to ask to see them, and it’s the single best predictor of a project that goes smoothly, safely, and on time.
Speak to our team for a free quote, and we’ll happily walk you through every accreditation we hold before we book anything in.
Frequently Asked Questions
Is a CSCS card a legal requirement for scaffolders? No, but almost every principal contractor and housebuilder requires one for site access, so in practice it’s essential.
How long is a CISRS card valid for? A CISRS card is valid for five years and is recognised as a CSCS partner scheme.
How often does scaffolding need to be inspected? Before first use, every seven days after that, and after any event that could affect its structural integrity, such as high winds, an impact, or an alteration.
What’s the difference between CHAS and NASC? CHAS assesses a company’s health and safety systems against a recognised standard; NASC is the industry trade body, and membership includes independent audits of equipment, training, and insurance on top of safety.
Do I need to ask about PASMA or IPAF for a normal home renovation? Only if the job involves mobile access towers or powered access platforms rather than traditional tube-and-fitting scaffolding, but it’s worth asking either way.