An electrical contractor carries a risk profile that almost no other trade shares: the work is invisible once the cover plate goes back on, the consequences of a defect can appear years later, and the buildings it happens in are usually occupied by somebody else.
Liability, and the defect that shows up later
Public liability answers for injury and damage caused by your work, and it is the cover a client or main contractor asks about first. What catches electrical contractors out is timing: a loose termination or an undersized cable can sit for years before it overheats, and whether a claim is covered then depends on the policy in force at the time the damage happens rather than the one in force when the work was done. That is why continuity of cover matters in this trade more than in most, and why a gap between policies is worth avoiding even when work is quiet.
Certification schemes and what they ask to see
Competent person schemes exist so an electrician can self certify notifiable domestic work rather than route every job through building control. Membership normally carries insurance requirements, and the scheme assessor will ask for the certificate at assessment. The requirement is usually a minimum public liability limit and evidence that the activities you carry out are the ones declared to your insurer, so a contractor who added solar, EV charge points or fire alarms since the last renewal has a declaration to make as well as a scheme to tell.
Where professional indemnity enters an electrical business
Most electrical work is physical and answered by public liability. Design is not. A contractor who specifies a distribution board layout, sizes a supply, designs an emergency lighting scheme or advises a client on what they need has sold advice, and a claim that the advice was wrong is a professional indemnity claim rather than a public liability one. Contractors who quote design and install as one package are the ones most likely to need both, and the client contract will often say so.
Tools, test equipment and the van
Calibrated test instruments are expensive and portable, which is a combination insurers watch. Tools cover is usually written with conditions about overnight vehicle storage, and many policies exclude theft from a vehicle left unattended overnight or reduce the limit sharply. Read that condition before assuming the van is a safe place to leave a set of instruments, and check whether cover is on a new for old or an indemnity basis, because the difference on a five year old kit is substantial.
Questions people ask about electrical contractor insurance
What insurance does a competent person scheme require?
Schemes normally require public liability at a stated minimum limit and proof at assessment. The exact figure and the activities covered are set by the scheme, so check the current scheme rules rather than a general guide.
Does an electrical contractor need professional indemnity?
Where the business designs or specifies as well as installs, yes. A claim that the design was wrong is not a public liability claim and is not answered by that policy.
Is test equipment covered under public liability?
No. Instruments and tools are covered under a tools or business equipment section, usually with conditions about overnight storage in a vehicle.