Security Insurance UK (2026): Cover for Every Security Trade, Compared

Security is the cluster where ordinary business insurance most reliably fails. Standard liability policies are written for accidents — and security work generates claims from deliberate acts (restraint, removal, detention), from systems that fail to do their one job, and from professional judgements about other people's lives and property. Every trade below needs cover written for the work, not adapted to it. Find your trade, get the two-minute version, then go deep in the dedicated guide — each with a quiz that matches providers to your circumstances.

Which best describes you?

• I work doors at licensed venues → Door supervisor insurance · quiz
• I guard sites, premises or events → Security guard insurance · quiz
• I install intruder or fire alarms → Alarm installer insurance · quiz
• I install CCTV → CCTV installer insurance · quiz
• I'm a locksmith → Locksmith insurance · quiz
• I'm a private investigator → Private investigator insurance · quiz

The whole cluster at a glance

Why generic policies fail security trades

Four failure modes recur across this cluster, and they're the reason to buy from security-literate providers:

Deliberate acts. Door and guarding work involves intentional physical contact — and standard public liability responds to accidents. A proper security wording extends to injury arising from deliberate acts in the course of duties, plus wrongful arrest and detention allegations. If a policy is silent on both, it isn't a security policy. (Applies to: door supervisors, security guards.)

Failure to perform. When an alarm, CCTV system or lock fails, the client's loss is a break-in — a claim about your professional work, not an accident on site. That sits under professional indemnity or explicit efficacy wording, which generic tradesman policies commonly exclude. (Applies to: alarm and CCTV installers, locksmiths who advise; guarding firms need the related inefficacy/contractual liability cover.)

Information risk. CCTV footage and investigation case files are personal data under UK GDPR; investigators additionally face defamation and breach-of-confidentiality claims. Indemnity and cyber cover — not premises cover — carry the load. (Applies to: CCTV installers, private investigators.)

The subcontractor trap. Labour-only subcontractors — working under your direction, your control — count as employees, making employers' liability legally required (fines up to £2,500 per day per person). Genuinely independent firms with their own verified cover don't. Every security business using flexible labour needs this distinction right.

Licensing, limits and the two-tier market

SIA licensing applies to front-line roles: door supervision and security guarding require the relevant SIA licence (currently £136 for three years), which insurers and clients verify on the public register. Installers and locksmiths aren't SIA-licensed but have their own quality marks (NSI/SSAIB accreditation for installers; Master Locksmiths Association vetting). Private investigation remains formally unregulated — years of discussed licensing notwithstanding — which makes the Association of British Investigators' membership standard (including its £500,000 minimum professional indemnity requirement) the de facto credential. In every case, insurance is separate from licensing: the licence lets you work; the insurance lets you survive a claim.

Contract-standard limits. Councils, large venues and corporate clients typically demand £5m public liability and £10m employers' liability. If you ever want that work, buy those limits — retrofitting mid-contract is the expensive route.

Two markets under each name. Door supervision and guarding split sharply between self-employed individuals (fast online cover from ~£12/month via Simply Business) and companies (a surveyed, minimum-premium broker market — Citynet's and Camberford's schemes — where door work rates three times harder than static guarding). The guides cover both ends; the quizzes route you to the right one.

Frequently asked questions

Is security insurance legally required? Only employers' liability (with any staff, including labour-only subs). But SIA-licensed work without public liability is commercially near-impossible — venues, agencies and clients demand proof.

Does my SIA licence include insurance? No. The licence and the insurance are entirely separate; you need both.

I do doors and guarding — one policy? Usually yes, but declare both: door supervision rates harder than static guarding, and undeclared door work is a claim-denial risk. Start with the door supervisor guide — its wording requirements are the stricter set.

I install alarms and CCTV? One installer policy typically covers both (Markel's product is built exactly this way) — declare fire-alarm work specifically, as it rates harder.

What about close protection or keyholding? Adjacent trades we haven't covered in dedicated guides yet — the specialist brokers in the security guard guide (Citynet, Camberford via your broker) handle both.

Guides in this cluster: Door supervisors · Security guards · Alarm installers · CCTV installers · Locksmiths · Private investigators

Related clusters: Health & fitness insurance · Construction & building trades (coming soon — alarm and CCTV installers often hold dual trades)