Subcontractor insurance is easy to treat as a box to tick before you get on site – a Public Liability certificate, an Employers’ Liability policy, job done. But as the UK construction market tightens and winter sets in, the gaps in a subcontractor’s cover are more likely to be found – often at the worst possible moment. So what insurance do subcontractors actually need, and what should you be checking right now?
The Pressure on UK Subcontractors Right Now
The construction market has had a difficult 2026. The monthly survey of construction firms’ activity (the S&P Global UK Construction PMI) came in at 46.1 for September, where anything below 50 means activity is falling. That’s an improvement on August, but it means the sector is still shrinking. Housebuilding remains the weakest area, new orders are subdued as clients delay decisions, employment across the sector has fallen every month since early 2025, and rising fuel and transport costs are putting pressure on margins again.
Financial strain is showing in the supply chain. Insolvency Service data shows 3,803 construction businesses in England and Wales became insolvent in the 12 months to May 2026. That’s down on the previous year, but still 18% higher than in 2019 – and specialist trades accounted for the largest share of construction insolvencies in May. Main contractors know this – which is why they are scrutinising subcontractors’ insurance, limits and certificates more closely than ever.
There is welcome change on the way. In March 2026 the government announced plans to ban cash retentions in construction contracts and cap payment terms at 60 days, alongside stronger powers for the Small Business Commissioner. But these reforms need legislation and aren’t expected to take effect for some time, so cash flow will stay tight through the winter for many firms. That makes an uninsured loss even harder to absorb.
Safety remains the other constant. HSE figures show construction recorded 25 worker deaths in 2025/26 – the highest number of any industry – and our guide to the 2026 HSE changes explains how the regulatory picture affects your insurance.
Why Winter Tests Your Cover
The months between October and February bring a predictable set of risks for subcontractors:
Tool and plant theft – darker evenings make vans, yards and sites easier targets. Many policies carry specific conditions for tools left in vehicles overnight.
Weather damage – storms, flooding and frost can damage work in progress and materials on site. Who bears that loss depends on your contract and who insures the works.
Slips, trips and poor light – icy access routes and shorter working days increase the risk of injury to your own team and to others on site.
The Christmas shutdown – sites can be unattended for a week or more, and some policies include conditions for unattended or unoccupied sites.
Delays – weather and shutdowns push programmes back, and as our article on why project delays cost more than the damage explains, delay is often the most expensive part of a claim.
What Insurance Do Subcontractors Need?
Every trade and contract is different, but these are the covers every subcontractor should review:
Employers’ Liability
A legal requirement as soon as you employ anyone – the legal minimum is £5 million, and most policies provide £10 million. Labour-only subcontractors working under your direction are usually treated as employees for Employers’ Liability purposes, so they must be declared correctly. More on our liability insurance page.
Public Liability
Covers injury to third parties and damage to their property – the cover every main contractor will ask to see. £5 million is common, but larger contractors, infrastructure work and public sector projects often require £10 million or more. The right limit is the one your contract specifies, not the one you’ve always had.
Tools, Plant and Hired-In Equipment
Your own tools and plant are often your most valuable business assets – and the most frequently stolen. Hired-in plant needs separate thought: most hire agreements make you responsible for loss or damage and for continuing hire charges until it’s replaced.
Contract Works (Contractors’ All Risks)
Protects the works themselves until handover. On many projects the main contractor insures the works, but some contracts pass that responsibility to the subcontractor. Our guide to Contractors’ All Risks vs Public Liability explains the difference.
Professional Indemnity
Needed as soon as your package includes design, specification or advice – including design-and-build packages, M&E design and temporary works. With the Building Safety Act increasing scrutiny of design responsibility, main contractors increasingly make Professional Indemnity a condition of appointment.
Personal Accident and Income Protection
For owner-operators and small teams, an injury that stops you working can stop the business altogether. Personal accident and income protection cover helps keep income coming in while you recover.
Commercial Vehicle Cover
Vans are the backbone of most subcontracting businesses. Commercial motor insurance should reflect how vehicles are used, who drives them and what’s carried in them.
Matching Your Cover to Your Contract
Having insurance isn’t the same as having the insurance your contract requires. JCT and NEC contracts set out specific limits, policy types and obligations that pass down the supply chain – and the JCT 2016 suite has now been replaced by JCT 2024. We cover this in detail in does your insurance actually meet your contract requirements?, and in why commercial insurance has become a competitive advantage for UK subcontractors.
A Winter Checklist for Subcontractors
Check the conditions for tools left in vans and on site overnight
Confirm your Public Liability limit matches every current contract
Make sure labour-only subcontractors are declared on your Employers’ Liability policy
Confirm who insures the works – and who is responsible for site security – over the Christmas break
Check hire agreements for hired-in plant responsibilities
Note any renewal dates that fall over the holiday period
Keep current certificates ready to send for new tenders
Download the Subcontractor Insurance FAQ Guide
We’ve put the most common questions we hear from subcontractors into a free, simple guide – covering legal requirements, typical limits, tools and plant, Professional Indemnity and what to check before the winter shutdown. Download it here.
Talk to Readhunt
Readhunt works with subcontractors and contractors across the UK construction sector to put cover in place that meets contractual requirements while staying practical and cost-effective – with fast, clear documentation for tenders. If you’d like a confidential review of your current policies before winter, get in touch on 01709 278178 or email info@readhunt.co.uk.