INSURANCE GUIDE
Construction Insurance UK
Public liability, employers liability, contract works and PI cover for UK building contractors and construction firms.
TL;DR
- Construction sites require public liability, employers liability, and usually contract works insurance as a minimum.
- JCT and NEC contracts specify minimum insurance requirements that contractors must meet before starting work.
- Professional indemnity is needed for contractors who design as well as build.
- Plant, tools, and hired equipment need separate cover from the main contractor liability policy.
Core Construction Insurance Covers
A construction contractor typically needs multiple insurance covers operating simultaneously. Public liability covers claims by third parties for injury or property damage. Employers liability covers employee injury claims and is legally required. Contract works insurance covers physical works in progress and materials on site. Professional indemnity is needed for design-and-build contractors. Plant and equipment covers owned and hired machinery. Each cover addresses a different category of risk and none substitutes for the others.
JCT Contract Insurance Requirements
Standard form building contracts - JCT Design and Build, JCT Intermediate, and others in the JCT suite - include insurance schedule provisions that specify minimum cover levels for both the employer and the contractor. Typical requirements include: minimum public liability limits of £5m to £10m; employers liability of at least £5m (the statutory minimum); and either contractor-arranged or employer-arranged joint names contract works insurance. Non-compliance with contract insurance requirements is a breach that can result in termination without damages.
Professional Indemnity for Design-and-Build Contractors
Contractors who take on design responsibility - either by providing their own design services or by novating a designer's appointment - need professional indemnity insurance to cover claims arising from design errors. A structural failure attributable to a design defect can result in a significant PI claim against the responsible contractor. PI for design-and-build work is typically arranged as a project-specific policy or an ongoing annual policy with a retroactive date covering all past projects.
Subcontractor Insurance
Main contractors engaging subcontractors should require each subcontractor to hold their own public liability and employers liability insurance. Main contractor policies typically cover subcontractors only to the extent they work under the main contractor's direct supervision. Failing to verify subcontractor insurance leaves the main contractor exposed to claims arising from subcontractor work that is not covered under the subcontractor's own policy.
Disclaimer
This guide is for general information only and does not constitute financial or insurance advice. Kaeltripton.com is not regulated by the FCA. Always read policy documents in full before purchasing cover.
Frequently Asked Questions
Does a self-employed builder need employers liability insurance?
A truly self-employed sole trader working alone does not need employers liability insurance. However, if you engage labour - employees, apprentices, or labour-only subcontractors you direct - EL is legally required from the first day. Many construction sites also require all contractors and subcontractors to demonstrate EL cover as a condition of site access, even for sole traders, because the site principal assumes EL is held by all parties.
What is the difference between public liability and contractors all risks?
Public liability covers claims by third parties for injury or property damage. Contractors all risks (CAR) covers the physical works in progress, site materials, and plant - damage to your own work and equipment. Both are typically needed on any substantial construction project. Public liability is third-party cover; CAR is first-party cover for the works and equipment themselves.
