Quick answer: do subcontractors need public liability insurance?
In the UK, public liability insurance for subcontractors is not typically required by law for most trades. But in real life, many subcontractors need it to get work because main contractors, landlords, councils, and commercial clients often require proof of cover before you can start.
If a contractor asks “Do you have public liability?” they’re usually asking for two things: (1) the cover limit (often £5m for site work) and (2) your certificate. If you need proof fast, start here: https://coverfinder.co.uk/quote/.
“I’m covered under the main contractor’s policy.” Sometimes you are for certain site risks, but many contractors still require subcontractors to hold their own public liability for third-party claims connected to their work. Always confirm in writing.
If you want the broader overview first, use the hub: Public Liability Insurance.
What public liability covers for subcontractors (in plain English)
Public liability (PL) is designed to protect your business if a third party claims you caused: injury or property damage in connection with your work. For subcontractors, “third parties” can include the client, tenants, site visitors, members of the public, or someone working nearby.
Example: someone trips over your cable run, tools, dust sheets or materials and claims injury.
Example: you damage finished flooring, walls, fixtures, glazing, kitchens, or a customer’s possessions.
Why subcontractor claims escalate
- Busy sites: more people, more trades, more potential for accidents and disputes.
- High-value finishes: late-stage work means “small” damage can be expensive to correct.
- Finger-pointing: multiple trades on site can lead to blame disputes without clear records.
Keep a basic paper trail: photos before/after, written scope, and any site instructions. It reduces disputes and helps if a claim is alleged.
Why main contractors require public liability (and what they check)
Contractors don’t ask for PL because they enjoy admin. They ask because their contracts and risk processes require it. If something goes wrong, they need to show due diligence: that subcontractors on site had appropriate cover.
What they usually check on your certificate
- Policyholder name matches your invoicing / onboarding name.
- Dates are active (not expired).
- Limit of indemnity matches the site requirement (often £5m).
- Trade/activity is consistent with what you actually do.
If you’ve been asked for a certificate specifically, see: Public Liability Insurance Certificate (UK).
How much cover do subcontractors need? (£2m vs £5m vs £10m)
The “right” public liability limit depends on your trade, clients, and the environments you work in. For subcontractors, the best answer is: match your contract requirement. If you turn up with £2m when the site requires £5m, you can fail onboarding.
| Cover limit | Typical fit | What to watch |
|---|---|---|
| £2m | Smaller domestic subcontract work / lower exposure | May not satisfy many main contractors or commercial sites |
| £5m | Common “site-ready” standard for subcontractors | Often requested by contractors, landlords, and property managers |
| £10m | Bigger commercial, councils, stricter procurement | Sometimes required for public sector or high-footfall environments |
If you want more subcontract work with main contractors, pricing at £5m by default can reduce onboarding friction. If you’re doing council/public sector work, price £10m too.
For deeper cost context, see: Public Liability Insurance Cost (UK).
Cost: what affects subcontractor public liability premiums (and how to avoid overpaying)
Subcontractor PL pricing varies because “subcontractor” can mean many things: domestic refurb support, commercial site work, specialist installs, or high-risk activities. Insurers price based on exposure, not your job title.
The factors that usually move price the most
- Trade/activity: roofing differs from decorating; electrical differs from general labour.
- Where you work: domestic vs commercial vs public-facing areas.
- Turnover / contract size: larger work values can increase exposure.
- Claims history: prior claims can affect pricing.
- Cover limit: £5m / £10m can cost more than £2m.
- Excess: higher excess can reduce premium, but don’t set it unrealistically high.
- Describe your work accurately (don’t understate your activities).
- Match the limit your clients ask for (avoid re-quoting later).
- If you do multiple trades, list them clearly (or pick the closest main category).
- Check exclusions that clash with your work (height work, heat work, welding, specialist installs, etc.).
Common gaps: what public liability usually doesn’t cover (subcontractor reality check)
Public liability is a core cover, but subcontractors often assume it covers everything on site. Here are common areas that may need separate cover or a different policy type (depending on wording).
PL is mainly about third parties. It’s not designed to pay you if you get injured.
PL isn’t there to pay to redo work because the finish isn’t acceptable (unless it leads to a covered claim).
Tools typically need separate cover (policy terms vary). PL is not “tools insurance”.
Many PL policies focus on injury/property damage. Financial losses without those may not be covered.
If you supply or fit products that could cause harm after installation, explore: Product Liability Insurance.
If you provide design/specification advice (or sign off work), you may also need: Professional Indemnity Insurance.
Do you need employers’ liability as a subcontractor?
If you employ anyone (even part-time, casual, or labour-only in many setups), you may need employers’ liability (EL). Contractors may ask for EL proof if you bring others onto site — or if you’re responsible for helpers.
Learn more: Employers’ Liability Insurance
Cost guide: Employers’ Liability Insurance Cost UK
Common question: Do Sole Traders Need Employers Liability Insurance?
When professional indemnity matters for subcontractors
Many subcontractors only think about on-site accidents. But some roles include advice, design, specification, drawings, surveys, or sign-off. If a client claims your advice caused a financial loss, public liability may not respond — that’s where professional indemnity (PI) can matter.
Design decisions, layout plans, incorrect specification, compliance advice, sign-off errors, or reporting issues.
How to get a subcontractor insurance certificate fast
Most onboarding delays come from admin basics: wrong policyholder name, wrong limit, expired dates, or vague trade descriptions. Here’s the fastest route to being “site-ready”.
- Exact invoicing name (your personal name / trading name / Ltd company name)
- Trade/activity (be specific: “plumbing & heating”, “electrical installation”, “roofing”, etc.)
- Where you work (domestic / commercial / public areas)
- Required limit (£2m/£5m/£10m)
- Start date you need cover from
Step-by-step: fastest route
- Start a quote with accurate details: Start Quote.
- Select the limit your contractor requires (often £5m).
- Double-check the policyholder name matches onboarding and invoices.
- Request your certificate PDF and save it (phone + email).
- Send it professionally and keep it in a “Certificates” folder for reuse.
If you’re unsure what a certificate includes or why contractors reject them, read: Public Liability Insurance Certificate (UK).
Subcontractor onboarding checklist (copy/paste)
Use this checklist to avoid last-minute panic when a contractor asks for “insurance details”.
| Item | What to prepare | Where to link |
|---|---|---|
| Public Liability | Correct limit + active dates + accurate trade description | PL hub • PL costs |
| Certificate PDF | Save the latest certificate and name it clearly | Certificate guide |
| Employers’ Liability | If you employ anyone or bring helpers, check requirements | EL hub |
| Professional Indemnity | If you give advice/design/spec/sign-off, check PI | PI hub |
| Related trade pages | Use trade-specific pages to match your work type | Builders • Plumbers • Electricians • Roofers |
FAQs
Is public liability insurance legally required for subcontractors in the UK?
It’s not typically a legal requirement for most subcontractors, but many main contractors and commercial clients require it as part of onboarding. Without proof (certificate + limit), you can lose work.
What public liability limit do subcontractors usually need?
Common limits are £2m, £5m and £10m. Many construction and commercial sites request £5m, while councils and stricter procurement can request £10m. Always match your contract requirement.
Do subcontractors need their own insurance if a main contractor has cover?
Often yes. Some main contractors still require each subcontractor to hold their own public liability. Confirm the requirement in writing and ensure your certificate matches the onboarding name and limit.
How do I get a subcontractor public liability certificate quickly?
Arrange cover with accurate details (trade, work type, required limit) and request the certificate PDF immediately. Start here: compare quotes. For details on certificates see this certificate guide.
Do I need employers’ liability as a subcontractor?
If you employ anyone (even in many casual/labour-only setups), you may need employers’ liability. Learn more at: Employers’ Liability Insurance.
What insurance do subcontractors commonly pair with public liability?
Common add-ons include employers’ liability (if you have staff), professional indemnity (if you give advice/design/spec), and sometimes product liability (if you supply products). Explore: PI and Product Liability.