Insurance for Working-at-Height Trades UK: The Law, Policy Height Limits and Claims

Introduction

Falls from height remain one of the most serious risk categories in UK construction and maintenance work, and the four trades covered here — roofing, scaffolding, window cleaning and tree surgery — sit at the centre of it. They are usually discussed separately, as though each needed its own body of insurance knowledge. In practice they share one legal framework and one commercial problem, and understanding both matters far more than any trade-specific detail.

The legal framework is the Work at Height Regulations 2005. The commercial problem is that liability insurance for these trades is written around height limits and fall-protection conditions that have no basis in the Regulations at all. This guide sets out what the law actually says, taken directly from the legislation, and then explains where the insurance contract departs from it — because that gap, not the law, is where claims are won and lost.

Key Terms Explained

Work at Height

Defined in Regulation 2 of the Work at Height Regulations 2005 as work in any place, including a place at or below ground level, and obtaining access to or egress from such a place, where a person could fall a distance liable to cause personal injury. There is no minimum height in the definition.

Working Platform

Any platform used as a place of work or as a means of access or egress, expressly including any scaffold, suspended scaffold, cradle, mobile platform, trestle, gangway, gantry and stairway used in that way.

Fragile Surface

A surface which would be liable to fail if any reasonably foreseeable loading were to be applied to it. A functional test, not a list of materials.

Personal Fall Protection System

A fall prevention, work restraint, work positioning, fall arrest or rescue system other than one relying solely on collective safeguards — and, expressly, rope access and positioning techniques.

Policy Height Limit

A commercial restriction in a liability policy stating the maximum height at which the insurer has agreed to cover work. It is a contractual term, not a legal threshold, and the two are frequently confused.

Contractors' All Risks (CAR)

Cover for the works themselves, materials and often hired-in plant while a contract is in progress — distinct from liability cover, which responds to claims by other people.

The Two-Metre Rule Does Not Exist

This is worth stating as plainly as possible, because it is repeated constantly across the trades and it is wrong.

Regulation 2 of the Work at Height Regulations 2005 defines "work at height" as:

"work in any place, including a place at or below ground level; obtaining access to or egress from such place while at work, except by a staircase in a permanent workplace, where, if measures required by these Regulations were not taken, a person could fall a distance liable to cause personal injury."

Read that definition carefully and three things follow that catch people out.

There Is No Minimum Height Whatsoever

The definition contains no measurement. The test is not how high you are; it is whether a fall from where you are could injure you. A two-metre threshold existed under earlier rules and did not survive into the 2005 Regulations. Anyone still working to a two-metre mental model is applying a repealed standard.

Below Ground Level Counts

The phrase "including a place at or below ground level" is express, not implied. Working beside an open excavation, over an inspection pit, or at the edge of a basement void can be work at height in law. This surprises people precisely because the phrase "at height" suggests otherwise.

Access and Egress Are Included

Getting to and from the place of work is covered, with one carve-out: a staircase in a permanent workplace. Climbing a ladder to reach a roof is work at height in its own right, not merely a preliminary to it.

What Regulation 6 Actually Requires

Regulation 6 sets out a hierarchy, and the order is not optional. Insurers, principal contractors and investigators all read it in sequence, so it is worth knowing as a sequence rather than as a general obligation to "be safe".

Step One — Avoid

Regulation 6(2): "Every employer shall ensure that work is not carried out at height where it is reasonably practicable to carry out the work safely otherwise than at height."

The first question is not how to work at height safely. It is whether the work needs to happen at height at all. Reach-and-wash poles from ground level, assembling at ground level and lifting into place, or specifying a different method are all answers to this step.

Step Two — Prevent the Fall

Regulation 6(3) requires suitable and sufficient measures to prevent, so far as is reasonably practicable, any person falling a distance liable to cause personal injury. Regulation 6(4) then specifies that this includes ensuring the work is carried out from an existing place of work complying with Schedule 1 where reasonably practicable, and otherwise providing sufficient work equipment to prevent a fall occurring.

This is where scaffolds, tower systems, MEWPs, edge protection and guard rails belong. The emphasis is on stopping the fall from happening.

Step Three — Minimise Distance and Consequences

Regulation 6(5) applies where the measures taken still leave a risk of a fall. It requires, so far as reasonably practicable, work equipment to minimise the distance and consequences of a fall — or, where the distance cannot be minimised, the consequences — plus additional training and instruction or other suitable measures.

Harnesses, fall-arrest systems and airbags sit at this level. They are the last step in the hierarchy, not the first, and a method statement that jumps straight to "operatives wore harnesses" without addressing steps one and two is visibly incomplete.

Four Statutory Definitions That Decide Claims

Regulation 2 also defines several terms that turn out to be decisive in practice, because they are broader than the everyday usage suggests.

"Working Platform" Is Very Wide

The definition covers "any platform used as a place of work or as a means of access to or egress from a place of work", and expressly includes "any scaffold, suspended scaffold, cradle, mobile platform, trestle, gangway, gantry and stairway which is so used."

A trestle arrangement and a gangway are working platforms in law, with the same regulatory consequences as a full scaffold. Improvised arrangements do not escape the framework by being improvised.

"Fragile Surface" Is a Functional Test

"A surface which would be liable to fail if any reasonably foreseeable loading were to be applied to it."

Note what this does not say. It does not list materials. Whether a surface is fragile depends on its condition and the loading that could foreseeably be applied — so a rooflight, a liner panel, an ageing cement sheet or corroded decking may all qualify depending on circumstances. For roofers this is the most operationally important definition in the Regulations.

"Ladder" Includes Stepladders and Fixed Ladders

A short definition with real consequences: stepladders are within the framework. The common belief that stepladder work is somehow outside the Regulations does not survive contact with the text.

Rope Access Is a Personal Fall Protection System

"Personal fall protection system" expressly includes "rope access and positioning techniques". Legally, rope access sits inside the same framework as harnesses and fall arrest.

Insurers frequently take a different view and treat rope access as a distinct, higher-hazard activity, sometimes excluded outright. That divergence — legally ordinary, commercially exceptional — is exactly the kind of thing to confirm in writing rather than assume.

Policy Height Limits: Where Law and Insurance Diverge

This section is the practical core of the guide.

The Regulations impose a duty keyed to whether a fall could cause injury. Liability policies for height trades commonly do something quite different: they state a maximum working height the insurer will cover — for example limiting cover to work up to a stated number of metres, or to a stated number of storeys.

These are different instruments doing different jobs. The Regulations govern whether you are acting lawfully. The policy governs whether the insurer has agreed to carry the risk. Compliance with the first does not deliver the second.

The Failure Mode

A tradesperson works entirely lawfully — hierarchy applied, correct equipment, competent operatives, everything documented — on a job above their policy's stated height limit. An incident occurs. The work was lawful. The claim can still fall outside the policy, because the insurer never agreed to cover work at that height.

This is not an obscure technicality. It is among the most common reasons claims in these trades are refused, and it is invisible to anyone who assumes the law and the policy are describing the same thing.

Related Restrictions in the Same Family

• Depth limits — a mirror-image restriction for work below ground, relevant given that the statutory definition covers below-ground work.
• Fall-protection conditions — a policy may make cover conditional on specified equipment being used, converting a safety measure into a contractual condition.
• Heat work / hot work conditions — relevant to roofing, often requiring specified precautions and a post-work watch period.
• Excluded activities — rope access, work on fragile surfaces, work near overhead lines, and work on certain building types are frequently carved out.

Because wordings differ substantially between insurers, none of these should be assumed. They should be read.

Compulsory, Contractual and Optional Cover

The Employers' Liability Duty

Section 1 of the Employers' Liability (Compulsory Insurance) Act 1969 requires that "every employer carrying on any business in Great Britain shall insure, and maintain insurance, under one or more approved policies with an authorised insurer or insurers against liability for bodily injury or disease sustained by his employees, and arising out of and in the course of their employment in Great Britain in that business."

Three points worth drawing out. The duty covers Great Britain — Northern Ireland has its own separate legislation. An "authorised insurer" means one with permission under Part 4A of the Financial Services and Markets Act 2000, which is a reason to check FCA authorisation before buying. And the duty attaches to employees, so whether a labour-only subcontractor is genuinely self-employed or is in substance your employee is a question of the working relationship, not the label — a live issue in these trades. Our Employers' Liability Insurance UK guide covers the duty in full.

The Sole Trader Gap

A sole trader with no employees has no employers' liability duty. That also means that if they fall, no employers' liability policy responds — because they are not an employee of anyone. Public liability protects other people from you; it does not protect you from a fall. For a self-employed roofer or tree surgeon, that is a significant and frequently unrecognised gap, and personal accident cover is the product that addresses it.

How the Four Trades Genuinely Differ

They share the legal framework. They do not share the risk profile.

Roofing

The defining exposure is the fragile surface. Given that the statutory test is functional rather than material-based, a roof that looks sound may still meet the definition. Roofing also uniquely combines height risk with hot work on many jobs, and with damage to the building below if weather protection fails mid-contract — which is a contractors' all risks question rather than a liability one.

Scaffolding

Scaffolders are distinctive in that they erect the very thing other trades rely on. That creates a liability that outlives their presence on site: a scaffold that fails after handover, or is altered by another trade, can generate a claim long after the scaffolder has left. Scaffolds are working platforms within the Regulation 2 definition, and inspection and handover documentation is correspondingly central.

Window Cleaning

The trade spans an unusually wide risk range under one job title — ground-level reach-and-wash at one end, high-rise rope access or cradle work at the other. Because the Regulations set no minimum height, both ends are within scope; because policies set height limits, the two ends are frequently not within the same policy. This is the trade where the law/policy divergence bites hardest, and where "window cleaner insurance" as a single category is most misleading.

Tree Surgery

Tree work combines height with chainsaws and with controlled destruction of something large and heavy near property. It also carries a legal exposure the other three do not: felling or pruning a protected tree. Tree Preservation Orders and conservation-area protections can make work on a specific tree unlawful regardless of how safely it is carried out, and the resulting liability is a legal and financial one rather than a health-and-safety one. Confirming a tree's protected status before quoting is a distinct step with no equivalent in the other three trades.

Equipment, Plant and Hired-In Kit

Liability cover protects other people. It does nothing for your own assets, and in these trades the assets are substantial.

Owned Equipment

Scaffold tube and fittings, towers, harnesses and lanyards, chainsaws and climbing kit, reach-and-wash systems and pure-water tanks all represent real capital. Standard business contents cover often applies at a specified premises only, which is a poor fit for trades whose equipment is almost never at a premises.

Equipment in Vehicles Overnight

Tools left in a van overnight are a common exclusion or a heavily conditioned extension — frequently requiring the vehicle to be locked, alarmed, and sometimes garaged or in a secure compound. Since these trades habitually load out the night before, this condition is worth reading rather than assuming.

Hired-In Plant

MEWPs, cherry pickers, chippers and stump grinders are commonly hired. Hire agreements typically place responsibility for loss or damage on the hirer for the entire hire period, including while idle on site. Hired-in plant cover is a separate product from your own equipment cover, and the gap between the two is a recurring surprise.

Continuing Hire Charges

A frequently overlooked point: if hired plant is damaged or stolen, the hire company may continue charging until it is replaced. Some policies cover continuing hire charges; many do not. On a long hire this can exceed the value of the item.

Exclusions That Cause Declined Claims

Wordings vary significantly between insurers, so treat this as a list of things to confirm rather than a statement of what any particular policy says.

Working Above the Stated Height Limit

The single most common cause. Lawful work, uncovered work.

Work on Fragile Surfaces

Frequently excluded or conditioned, and the statutory definition is broader than most people assume.

Rope Access and Suspended Access

Legally ordinary, commercially exceptional. Frequently excluded unless specifically declared and accepted.

Activities Outside the Declared Trade Description

A roofer's policy may not cover general building work. A window cleaner's policy may not cover gutter clearance or pressure washing. Adding a service line without telling the insurer is a classic mismatch.

Failure to Meet a Policy Condition Precedent

Where a policy makes cover conditional on specified fall protection, scaffold inspection intervals, or hot-work precautions, departing from the condition can prejudice a claim even where the departure did not cause the loss.

Faulty Workmanship Versus Resulting Damage

Liability policies commonly exclude the cost of rectifying your own defective work while covering damage that work causes to other property. On a roof, the distinction between "the roof you fitted badly" and "the ceiling ruined by the water that came through it" is exactly where this exclusion operates.

Subsidence and Tree Root Claims

For tree surgeons, removing or heavily reducing a mature tree can be followed by ground heave affecting nearby foundations. These claims emerge slowly and may arrive years later, which raises the question of whether cover is written on a claims-made or claims-occurring basis.

Evidence That Decides a Fall Claim

Fall claims are investigated more thoroughly than most liability claims, and the documentation either exists at the time or it does not.

The Risk Assessment and Method Statement

Because Regulation 6 is a hierarchy, the most valuable feature of a RAMS document is that it visibly works through the hierarchy in order — recording why work at height could not be avoided, what was specified to prevent a fall, and what residual measures addressed the remaining risk. A document that only lists PPE issued does not demonstrate compliance with the regulation it is supposed to evidence.

Competence and Training Records

Regulation 6(5)(b) expressly refers to additional training and instruction as part of the residual-risk measures. Training records are therefore not merely good practice; they are evidence going directly to a statutory requirement.

Equipment Inspection Records

Harnesses, lanyards, anchor points, ladders, towers and scaffolds all require inspection regimes. Records showing inspection before an incident are materially stronger than a general assertion that equipment was maintained.

Scaffold Handover Documentation

For scaffolders specifically, the handover record is the boundary between your liability and the next party's. Where a scaffold is altered after handover, that document is often the decisive evidence.

Photographs and Same-Day Notes

Site conditions change within hours. Photographs of the working arrangement, edge protection and surface condition, taken on the day, carry far more weight than a reconstruction produced weeks later.

Pre-Work Checks Specific to the Trade

For tree surgeons, evidence that a tree's protected status was checked with the local planning authority before work began. For roofers, evidence that surface condition was assessed. For window cleaners, evidence of the access method agreed with the client.

A Decision Framework Before You Quote a Job

1. Establish the Actual Working Height and Method

Not the nominal height of the building — the height at which a person will actually be working, and how they will get there and back.

2. Check It Against Your Policy Limit, Not the Law

The law has no threshold. Your policy does. This is the check that prevents the commonest declined claim.

3. Confirm the Activity Is Within Your Declared Trade Description

Gutter clearance, pressure washing, hot work, rope access and general building work are each capable of falling outside a narrowly written description.

4. Work the Regulation 6 Hierarchy in Order, and Record It

Avoid, then prevent, then minimise. Record the reasoning at each step, not just the outcome.

5. Assess Surfaces Against the Statutory Fragility Test

Liable to fail under reasonably foreseeable loading — a judgement about condition, not a materials checklist.

6. For Tree Work, Check Protected Status Before Quoting

A TPO or conservation-area designation can make the work unlawful irrespective of how safely it is performed.

7. Confirm Who Is an Employee

Labour-only subcontractors may be employees in substance. That determines whether the compulsory EL duty is engaged.

8. Check Hired-In Plant Responsibility

Including continuing hire charges if the item is lost or damaged.

Claim Scenarios

Explanatory scenarios illustrating the distinctions above, not reports of specific cases.

References and Editorial Standards

Primary sources read directly for this guide

• The Work at Height Regulations 2005 (SI 2005/735), Regulation 2 (Interpretation) — read directly at legislation.gov.uk. Source for the definition of "work at height" including the absence of any minimum height and the express inclusion of places at or below ground level; the access and egress inclusion and the permanent-workplace staircase carve-out; and the definitions of "working platform", "fragile surface", "ladder" and "personal fall protection system" including rope access and positioning techniques.
• SI 2005/735, Regulation 6 (Avoidance of risks from work at height) — read directly at legislation.gov.uk. Source for the avoid / prevent / minimise hierarchy at 6(2), 6(3), 6(4) and 6(5), including the reference to additional training and instruction at 6(5)(b).
• Employers' Liability (Compulsory Insurance) Act 1969, section 1 — read directly at legislation.gov.uk. Source for the compulsory employers' liability duty, its application to employers carrying on business in Great Britain, and the definition of "authorised insurer" by reference to Part 4A of the Financial Services and Markets Act 2000.

Statements about insurance policy terms — height limits, depth limits, fall-protection conditions, fragile-surface and rope-access exclusions, hired-in plant responsibility and continuing hire charges — describe general market practice observed across UK trade liability policies. They are not universal and no specific insurer's wording is described. Where this guide says wordings vary, that is a deliberate statement of fact: these terms are not standardised.

Tree Preservation Orders and conservation-area protections are referred to in general terms as a legal consideration for tree work. The specific statutory framework governing them has not been verified at source for this edition and is therefore described only at the level of principle, with the reader directed to their local planning authority.

Conclusion

Four trades, one legal framework, and one commercial trap.

The legal framework is simpler than the folklore suggests. There is no two-metre rule; the test is whether a fall could injure, and it applies below ground level as readily as on a roof. Regulation 6 sets a hierarchy — avoid, prevent, minimise — and that order is the order in which any subsequent investigation will read your paperwork.

The commercial trap is that insurance does not follow the same logic. Your policy's height limit, fragile-surface treatment and rope-access position are underwriting decisions, not legal thresholds, and it is entirely possible to work lawfully and uninsured at the same time. Of everything in this guide, the single most useful action is to obtain your stated height limit in writing and compare it against the tallest job you have actually quoted — not the tallest you think of as typical.

For related reading, see our Public Liability Insurance UK guide, our Employers' Liability Insurance UK guide, and our Contractors' All Risks Insurance UK guide for cover on the works themselves.