Written by Michael Foote, Insurance Expert
A cable clipped into the wrong place, a ladder knocked into a customer’s window, or a fault that causes damage after you leave can turn a routine job into an expensive claim. So, how much public liability insurance for electricians is enough? For many sole traders, £1 million is the starting point, but £2 million or £5 million is often needed to meet customer, contractor or site requirements.
The right limit is not simply the cheapest figure accepted on a quote form. It should reflect the type of premises you work in, the potential scale of damage and the contracts you want to win. Choosing too little cover may shut you out of work before a claim ever arises.
How much public liability insurance do electricians need?
Public liability insurance protects your business if a third party claims they were injured or their property was damaged because of your work. It can cover compensation, legal defence costs and certain related expenses, subject to the policy terms.
There is no single legal minimum for public liability cover for electricians. However, many clients set their own minimum limits. Domestic customers may not ask for proof at all, while a commercial landlord, main contractor or local authority may make adequate cover a condition of appointing you.
As a broad guide, £1 million can be suitable for electricians whose work is mainly low-risk domestic repairs and installations. £2 million is a common requirement for commercial jobs, property managers and smaller building contracts. £5 million is frequently requested for larger construction sites, public-sector work, schools, hospitals and contracts where a main contractor imposes higher insurance standards.
A £10 million limit is less common for a small electrical business but may be relevant where you work on major projects, in high-value premises or under contracts with particularly strict conditions. It is sometimes arranged by combining a primary policy with an additional excess layer.
The critical point is that the limit applies to the potential value of a claim, not the value of your invoice. A modest job in a block of flats, shop or office could still lead to a substantial loss if there is fire, water damage, business interruption or a serious injury.
Why electricians often need more than the minimum
Electrical work carries risks that can extend beyond the room where the work is being carried out. An accidental injury to a householder is one concern. Damage to wiring, finishes, equipment or neighbouring property is another. If your work is alleged to have caused a fire or outage, the eventual claim could include losses well beyond the immediate repair.
This does not mean every electrician should automatically buy the highest available limit. Higher cover limits can increase the premium, and the appropriate level depends on your actual work. But selecting a limit solely because it is the lowest-cost option can be a false economy if it prevents you taking better contracts or leaves a sizeable uninsured gap.
Consider the environments you enter. Working in private homes generally presents a different exposure from electrical maintenance in restaurants, factories, communal buildings or offices. The latter may involve more people, more valuable equipment and greater financial consequences if the premises cannot operate.
It also matters whether you work alone or alongside other trades. On a busy site, damage can affect work completed by several contractors, while an injury claim can involve complex questions about responsibility. Public liability insurance is there to respond to allegations and defend you where appropriate, not just to pay claims that are immediately accepted.
The cover level clients may ask for
Before agreeing to a job, check the contract, tender documents or contractor onboarding form. The stated insurance requirement is often clear, but do not assume that a figure mentioned casually by a client is the complete picture. Ask whether they require a specific public liability limit, whether it must be provided for each claim, and whether any specialist endorsements are needed.
Common requests include:
- £1 million for straightforward domestic work and small private jobs
- £2 million for many commercial clients, managing agents and contractors
- £5 million for larger sites, public buildings and higher-value contracts
- Evidence of cover, usually in the form of an insurance certificate, before work starts
A policy with a £2 million limit will not meet a contract requiring £5 million, even if the job itself seems small. In that situation, you may be able to increase the limit before the work begins. Check the cost and whether the higher limit applies for the full policy period, rather than assuming a document can be altered after the event.
Match the limit to the work you actually carry out
A practical way to choose cover is to look at your highest-risk job over the next 12 months, not just your average call-out. Think about the premises, the number of people who could be affected and what might happen if something goes wrong.
An electrician installing a new socket in a private house may reasonably assess their exposure differently from one rewiring multi-let properties. Likewise, an electrical contractor working in retail units after hours should consider the value of stock, fittings and equipment that could be damaged, alongside the cost to the business if it cannot reopen as planned.
Your scope of work also needs to be accurately described to an insurer. Tell them if you undertake inspection and testing, EV charger installation, work at height, industrial electrical work, work in communal areas or subcontracted projects. Omitting relevant activities may create problems when making a claim, even if the public liability limit itself appears adequate.
If you use subcontractors, establish who is responsible for their work and whether your contracts require them to hold their own insurance. A bona fide subcontractor will often need separate public liability cover. Labour-only subcontractors may be treated more like employees for insurance purposes, so it is sensible to check your position rather than rely on labels.
Public liability is not the whole insurance picture
Public liability cover is designed for injury to third parties and damage to third-party property. It does not automatically cover every loss connected with an electrical business.
If you employ anyone, employers’ liability insurance is usually a legal requirement in the UK. It protects against claims from employees who are injured or become ill because of their work. The rules can be nuanced for family members, limited companies and certain contractors, so seek advice if you are unsure whether the requirement applies.
Professional indemnity insurance may be worth considering if you provide designs, specifications, surveys, certifications or advice that a client relies on. For example, a claim based on an alleged error in professional advice is not necessarily the same as a claim for accidental property damage. The distinction matters, particularly for electricians taking on design-and-install responsibilities.
You may also want protection for tools, stock, business equipment, personal accident, contract works or legal expenses, depending on how you operate. These covers solve different problems. A well-priced public liability policy does not replace them.
Check the policy wording, not just the headline figure
When comparing insurance, the limit of indemnity is a key number, but it should not be the only one. Look at the excess, which is the amount you may need to contribute towards certain claims. Review any exclusions, activity restrictions and conditions that apply to the work you carry out.
Ask whether the stated limit includes legal costs or is paid in addition to them. This can affect how much remains available for compensation in a large claim. Also check whether the policy covers work away from your usual premises, temporary work locations and work completed during the policy period.
Completed work cover deserves particular attention. A problem may only become apparent weeks or months after an installation has been finished. You should understand how the policy responds to claims arising from completed work and what happens if you cease trading or change insurer later.
Being transparent when you apply is the best protection against avoidable disputes. Describe your turnover, activities, contract values, staff and claims history honestly. If your business grows into larger commercial work, tell your insurer before assuming your existing policy still fits.
Choosing a sensible level without overpaying
For a domestic electrician with routine jobs and no contractual requirement, £1 million may be a sensible starting point. If you want flexibility to take on more commercial work, £2 million can offer a useful middle ground. Where your target clients routinely require £5 million, purchasing lower cover first may only create another task and another cost later.
Compare policies on what they cover as well as the premium. A low price is only valuable if the insurer accepts your trade activities and the limit meets the contracts you intend to sign. An independent comparison process can make it easier to assess relevant options without spending hours approaching insurers one by one.
Keep your certificate accessible and renew before it expires. Clients may ask for evidence at short notice, especially when you are joining an approved contractor list or starting a new site job.
The best cover level is the one that reflects your real risk and lets you accept work with confidence. Start with the contracts and premises on your horizon, not just the jobs you completed last year, then choose a public liability limit that will not hold your electrical business back.
