Scaffold Accident Statistics UK: 2026 Facts, Data & Key Insights

Scaffolding Accidents in the UK

Scaffolding provides access to height that would otherwise be impossible to work from safely. When properly erected, inspected, and used, it is one of the safest methods of working at height available. When it fails — through poor erection, inadequate inspection, overloading, or misuse — the consequences are typically severe.

The UK scaffolding industry has made remarkable safety progress in recent years. The National Access and Scaffolding Confederation (NASC) — the UK's principal scaffolding trade body — reported that 2024 saw the lowest number of accidents in its 80-year history among its member companies. But falls from scaffolding still feature regularly in the 35 fatal falls from height recorded in 2024/25, and the scaffolding sector faces ongoing challenges from the growth in non-NASC member companies where safety standards may be less rigorous.

For the broader falls from height context see our Falls from Height Statistics UK: The Definitive Guide.

Key Facts & Figures (Overview)

The NASC Safety Data

The NASC Annual Safety Report is the most comprehensive source of data on scaffolding accidents in the UK. Published annually, it compiles accident returns submitted by all NASC contracting members as a mandatory membership requirement.

The 2025 Safety Report (covering 2024 data) confirmed:

The NASC notes that its member accident rates are consistently lower than comparable construction industry rates — reflecting the training, safety management, and competence standards that NASC membership requires.

However, NASC members represent only a portion of the total UK scaffolding workforce. Non-NASC scaffolding contractors — particularly small firms and sole traders — may not maintain equivalent safety standards, and incidents involving non-member companies are not captured in NASC data.

Most Common Scaffolding Accident Causes

Analysis of UK scaffolding accident reports identifies the following as the primary accident causes:

Falls during erection and dismantling: The highest-risk phases of scaffold work. During erection, edge protection and working platforms are not yet in place; during dismantling, they are progressively removed. Both create conditions where workers are working at height without full collective protection.

Falls from the completed scaffold: Workers using scaffolding as a working platform can fall from open edges, through gaps in boards, or if guardrails have been removed for material access and not replaced. Incomplete boarding, missing guardrails, and removed toe boards are the most common contributing factors.

Scaffold collapse: Structural failure of the scaffold — either from overloading, from inadequate ties to the building, from ground conditions that were not assessed before erection, or from deliberate or accidental removal of structural components. Scaffold collapses are relatively rare but typically result in multiple casualties.

Slips on wet or icy scaffold boards: The open, outdoor nature of scaffolding means exposure to all weather conditions. Wet, icy, or contaminated boards are a persistent hazard.

Manual handling during erection: Manual handling of scaffold tubes, couplers, and boards is physically demanding and carries musculoskeletal and struck-by risk. The NASC 2024 report identified manual handling as one of the biggest hazards in the scaffolding industry.

Legal Requirements for Scaffold Safety

Under the Work at Height Regulations 2005 and the Construction (Design and Management) Regulations 2015 (CDM), scaffolding must be:

Designed by a competent person: All but the simplest scaffold configurations must be designed or checked by a competent person with appropriate qualifications and experience (typically an Advanced Scaffolder or a structural engineer for complex structures).

Erected by trained and competent workers: Scaffold erection requires specific competence. CISRS (Construction Industry Scaffolders Record Scheme) training and card is the recognised industry standard for scaffolders in the UK — covering Trainee, Part 1, Part 2, and Advanced levels.

Inspected before first use, and at least every 7 days (or after any event likely to have affected its stability — such as a storm): Inspections must be carried out by a competent person and documented. The inspection report must include details of any matters that could give rise to risk.

Tagged to show inspection status: NASC colour-coded scaffolding tags provide a visible indication of inspection status — green (safe to use), amber (restricted use), red (do not use).

Prosecution Cases

Scaffold-related prosecutions are a regular feature of HSE enforcement activity:

Written by Working at Height Experts

This guide was produced by the team at Working at Heights Course, a UK provider of RoSPA and CPD-accredited online working at height training. For related data see our Falls from Height Statistics UK: The Definitive Guide, Working at Height Statistics UK, Ladder Accident Statistics UK, Roof Work Accident Statistics UK, and Construction Falls from Height Statistics UK.

Sources & References