Avoiding Work at Height on Building Inspections: The Practical Guide

The Work at Height Regulations 2005

The Work at Height Regulations 2005 apply to all work at height where there is a risk of a fall liable to cause personal injury. 'Work' includes inspection, survey, and assessment activities.

The regulations establish a clear hierarchy. Step 1: avoid work at height wherever possible. Step 2: where it cannot be avoided, prevent falls using platforms, guardrails and scaffolds. Step 3: where falls cannot be prevented, minimise the distance and consequences. The hierarchy is not advisory. It is a legal requirement.

Where the exposure sits for property teams

The duty under the regulations does not only apply to the contractor doing the climbing. It applies to anyone who commissions the work. If you instruct a roofing contractor to inspect your flat roof, and someone is injured during the access, the question will be: could this inspection have been completed without working at height?

Property managers and building owners have duties as clients under the CDM Regulations 2015 to ensure that work is planned and managed to minimise health and safety risks. Commissioning routine working at height for inspection purposes, when a safer alternative exists, is increasingly difficult to justify.

The cost of access

Access equipment, mobilisation, site controls and repeat visits contribute to the cost of an inspection. Obtain quotations for the actual building and compare equivalent coverage, interpretation and deliverables.

MEWP hire is cheaper but limited by hard standing, ground conditions and reach. Rope access is specialist and still at height. Each access event creates a new risk window. Reducing the number of access events directly reduces the number of opportunities for something to go wrong.

What drone-captured inspection changes

Drones provide a remote view of accessible roof and facade surfaces. Obstructions, stand-off, weather and site restrictions affect the detail and coverage available.

For inspection purposes, this is the avoid option the regulations ask for first.

When drone inspection replaces access entirely

Remote capture is useful for external condition records, storm-damage review and contractor scoping where the flight can safely provide the required evidence. Decide whether physical access is still needed for the particular question.

When access is still necessary

We do not claim that drone inspection eliminates all working at height. Physical testing, such as membrane adhesion tests or core samples, requires someone on the roof. Detailed inspection of concealed areas beneath plant equipment or inside gutter channels may require physical access. Repair and maintenance work itself still requires a person.

The practical impact is this: drone inspection replaces the investigative and assessment access events, which are the most frequent and least well-defined. The remaining access events are for specific, scoped repair work where working at height is justified.

The numbers on a typical portfolio

For a portfolio programme, compare the proposed capture coverage and the access each building requires. Record physical follow-up separately rather than assuming that drone capture removes every access event.

Drone capture can avoid the need for a person to reach a surface for photography. Ground controls, permissions, access to launch positions and any physical follow-up still need planning.

Regulatory alignment

Using drone-captured inspection to avoid working at height is the straightforward application of step 1 of the hierarchy. The CAA has explicitly stated that building inspections are a primary use case for drone technology.

A condition record supports decisions by the responsible teams. It does not demonstrate compliance with all building-safety, housing or work-at-height duties.