Public Liability Explained

Public liability insurance helps protect a business if a third party (such as a customer, visitor, or member of the public) is injured or their property is damaged because of your business activities.

It is common for contractors, trades, venues, and service businesses, and is often required by clients or landlords. This guide explains what public liability cover does (and doesn’t) cover and what to check before buying.

What public liability insurance covers

Public liability (PL) responds when a third party alleges your business caused injury or property damage. The insurer can pay compensation and legal defence costs, subject to the policy terms.

Typical examples include a customer slipping your premises, damage caused while working at a client site, or accidental damage during deliveries.

• Third-party injury claims (including legal defence costs).
• Third-party property damage claims.
• Legal costs and representation (within limits).

What it usually does not cover

PL is not a catch-all. It won’t cover every risk a business faces.

Common gaps include employee injuries (employers’ liability), professional advice errors (professional indemnity), and damage to your own tools/equipment.

• Employee injury or illness (use employers’ liability).
• Professional negligence or advice errors (use professional indemnity).
• Your own property and equipment (use tools/equipment or business contents cover).
• Contractual liabilities you accept beyond common law (some contracts require extensions).

Products and completed operations (important for many trades)

If you supply products (even as part of a service), you may need liability — often packaged with PL but not always.

Completed operations refers to issues that arise after you have finished work (for example a fitted item fails later). Some policies include this automatically; others restrict it.

• Confirm products liability is included if you supply goods.
• Check ‘work away’ and ‘completed work’ wording if you operate at client sites.
• Understand any exclusions for heat work, heights, hazardous locations, or certain materials.

Choosing the right limit of indemnity

The right limit depends on your exposure. Higher footfall, higher-value client property, and higher-risk work tend to require higher limits.

Many commercial contracts specify minimum PL limits (for example £2m, £5m, or £10m). Choose based on contract requirements and realistic worst-case scenarios.

• Low-risk services: often £1m–£2m (varies by client requirements).
• Trades and contractors: often £2m–£10m depending on work type and clients.
• Public-facing venues: can require higher limits due to footfall risk.

Common policy conditions and exclusions

PL policies may have conditions on risk management and reporting. Some exclusions are industry-specific (for example working at height or away from UK). Always disclose the nature of your work accurately — misdescribing activities is a common reason for claim disputes.

• Territorial limits: UK-only vs worldwide (often excluding USA/Canada unless specified).
• Heat work, hazardous work, or depth/height restrictions.
• Bona fide subcontractor requirements and checks.
• Incident reporting timeframes and record-keeping.

Claims and incident management

If an incident happens, gather details: photos, witness statements, and a timeline. Notify your insurer promptly, even if the third party hasn’t made a formal claim yet. Do not admit liability without advice — provide facts and let the insurer manage legal correspondence.

• Record incidents in an incident log with photos and witness details.
• Keep copies of contracts, method statements, and risk assessments where relevant.
• Notify the insurer early and keep communication in writing.

Key takeaways

• Public liability protects against third-party injury and property damage claims linked to your business.
• It does not cover employees or professional advice — use employers’ liability and professional indemnity for those.
• Confirm products and completed work cover if relevant to your activities.
• Choose limits based on contracts and realistic worst-case scenarios.
• Accurate descriptions of your work and good incident records reduce claim friction.