Risks of Choosing the Cheapest Security Quote | UK Guide

Last updated: 23 September 2026

The risks of choosing the cheapest building security quote include unlicensed or unvetted guards, inadequate insurance, contract gaps that leave you liable after a break-in or injury, and hidden costs from retraining, downtime or failed insurance claims. In 2026, with security guard turnover reaching as high as 300% at some contract firms, low-cost providers frequently cannot maintain trained, consistent staffing.

Key Takeaways

• Security guard turnover at some contract firms reaches 300% annually, meaning certain companies replace their entire workforce three times a year, according to ASIS International (via Intellisee) (2026).
• The SIA's Approved Contractor Scheme approved only 33 of 106 applicants in 2023–2026, showing how many UK security firms fail to meet recognised quality standards, per Security Industry Authority data via Security Jobs Board (2026).
• There are around 451,000 active SIA licence holders in the UK as of 2026, so verifying a guard's individual licence is a straightforward, mandatory check for any building owner, per SIA data via Security Jobs Board (2026).
• Building owners can face vicarious liability under UK common law if a poorly vetted or undertrained contracted guard causes injury, theft or a data breach on site.
• Priority First deployed an SIA-licensed officer to a Covent Garden site within two hours of first contact, from a 12:30 call to an operative on site by 14:30, demonstrating that rapid, compliant response does not require compromising on standards.

What is the cheapest building security quote, and why is it risky?

A cheapest building security quote is a proposal priced below the market range for comparable manned guarding, keyholding or CCTV monitoring cover in a given area of the UK, typically achieved by cutting staffing levels, training hours or insurance provision. In London, where site risk and property values are highest, an unusually low quote is rarely a sign of efficiency — it is usually a sign that something essential has been stripped out.

Prime central London buildings — from Mayfair offices to Knightsbridge residential blocks — face professional criminals, high footfall and complex access requirements. A quote significantly below the going rate for SIA-licensed guarding, keyholding and alarm response cannot usually cover the wages, training, supervision and insurance a compliant provider needs. Something in that chain has been reduced, and it is rarely visible until an incident happens.

What hidden costs emerge after accepting a cheap security quote?

Hidden costs after accepting a cheap security quote typically surface as retraining fees, emergency cover charges, equipment replacement, and the operational cost of an incident the original quote didn't prevent. Security services have an annual turnover rate of 77%, up from about 69% before the pandemic, compared with overall private-sector turnover in the high 50% range, according to ASIS International (via HappyFleet) (2026).

That churn is expensive for the client, not just the provider. Every departing guard means a new induction period, gaps in site knowledge, and a fresh risk of errors while a replacement learns your building's layout, checkpoints and access protocols.

Some firms report turnover as high as 300%, replacing their entire guard force three times in a year, per ASIS International (via Intellisee) (2026). A building cycling through unfamiliar officers at that rate is exposed precisely when consistency matters most — during a break-in, an alarm activation, or an evacuation.

Common hidden costs include:

• Emergency call-out fees when the cheap provider cannot cover a shift shortfall
• Retraining and re-induction costs every time a guard leaves
• Equipment replacement where cheaper CCTV or access control fails prematurely
• Insurance excess or premium rises following an incident linked to poor security
• Reputational cost if a break-in, theft or injury becomes public

Are UK security companies legally required to hold SIA licensing, and how do I verify this?

Priority First notes that UK security companies must ensure their frontline staff hold an individual SIA (Security Industry Authority) licence — the mandatory licence issued under the Private Security Industry Act 2001 covering roles such as door supervision, CCTV operation and manned guarding. The company itself does not require a licence to operate, but every guard, keyholder and CCTV operator working under contract does.

There are around 451,000 active SIA licence holders in the UK as of 2026, according to SIA data via Security Jobs Board (2026). You can verify any individual's licence using the SIA's public register, and a legitimate provider will produce this without hesitation.

Beyond individual licensing, the SIA also runs the voluntary Approved Contractor Scheme (ACS), a business-level quality benchmark. In 2023–2026, the ACS received 106 new applications but approved only 33, alongside withdrawals and sanctions for firms breaching standards, per SIA data via Security Jobs Board (2026). That approval rate shows how many security firms fail to reach recognised operational standards even when they choose to apply.

Verification checklist:

• Ask for each guard's SIA licence number and check it on the public register
• Confirm the licence covers the correct sector (e.g. Door Supervision, CCTV, Close Protection)
• Ask whether the firm has applied to, or holds status under, the ACS
• Request Companies House details — Priority First, for example, is registered as company number 14830917

What levels of insurance and liability cover should a legitimate security provider have?

Priority First advises that a legitimate security provider should hold public liability insurance, employer's liability insurance (a legal requirement under the Employers' Liability (Compulsory Insurance) Act 1969 for any UK firm with staff), and professional indemnity cover appropriate to the contract value and site risk. Employer's liability insurance protects a provider's own staff; public liability protects third parties — visitors, residents, tenants — from injury or property damage caused by the guarding operation.

For prime London commercial or residential sites, insurance limits should reflect the actual asset value being protected, not a generic minimum. A provider guarding a building worth tens of millions of pounds needs cover proportionate to that exposure, not the bare legal floor.

Ask any provider for:

• A current certificate of employer's liability insurance
• Public liability cover limits, ideally £5 million or above for commercial premises
• Confirmation of professional indemnity cover for advisory or monitoring services
• Written confirmation the policy remains active for the full contract term

A cheap quote that omits proof of adequate insurance shifts the financial risk of any incident directly onto you as the building owner or manager.

What are my legal responsibilities if a security failure leads to a break-in, injury, or data breach?

Business owners retain legal responsibility for the safety of their premises even when security is contracted out, under the Health and Safety at Work etc. Act 1974 and, for data-related failures, the UK GDPR enforced by the Information Commissioner's Office (ICO). Outsourcing the task does not outsource the liability.

If a poorly vetted or undertrained guard causes injury through negligence, a building owner can face a claim under the principle of vicarious liability — where an employer or engaging business is held responsible for the actions of someone working under its control, even a subcontracted worker. A break-in enabled by an unmanned checkpoint or a guard asleep on duty can trigger both an insurance dispute and a direct negligence claim against the site owner.

As one industry commentator puts it: "Furthermore, contract security does not replace the need for police intervention," notes Glen Kitteringham, President of Kitteringham Security Group — a reminder that a cheap guarding contract cannot substitute for proper incident escalation and reporting.

CCTV systems that capture and store footage of employees, residents or visitors also fall under UK GDPR. A cheap provider using unsecured or non-compliant recording systems can expose the client to ICO enforcement action following a data breach, quite separate from any physical security failure.

How do cheaper providers cut costs on staffing, equipment and maintenance?

Cheaper providers typically cut costs through understaffing shifts, reducing guard training hours, using outdated CCTV and access control hardware, and deferring equipment maintenance until failure. Each of these is invisible on a quote sheet but becomes obvious the moment a real incident tests the system.

Reduced vetting is one of the most serious cuts. British Standard BS 7858, the UK standard for security screening of personnel, sets out reference checks, employment history verification and identity confirmation — a process that costs time and money to do properly. A firm quoting well below market rate has strong incentive to shortcut this screening, increasing the risk of theft, negligence or liability claims from an inadequately vetted guard.

Understaffing is the other common cut: fewer guards covering more ground, longer unsupervised gaps between patrols, and no contingency cover when someone calls in sick.

Priority First's own operational data illustrates what proper coverage looks like in practice. Across a 16-building prime central London estate live since March 2026, Priority First has completed more than 4,100 patrols, with 250–280 photo-backed patrols recorded per building — a standard only achievable with adequate staffing and consistent checkpoint discipline, in line with the broader industry pattern where thin margins on cheap contracts tend to produce the opposite.

"The alternative of choosing the lowest price service provider with a low level of security contributes substantially towards lowering the image of the industry in the eyes of the public," says Grayling D. Livingston, Founder and President of Get A Security Quote.

What contract pitfalls should I watch for with low-cost security firms?

Common contract pitfalls with low-cost security firms include vague service-level agreements (SLAs), hidden call-out or emergency fees, no clear escalation route for incidents, and no accountability mechanism to prove patrols or checks actually happened. A contract that reads well but cannot be measured is not a working contract.

Contract feature	Low-cost provider (typical)	Adequately resourced provider
Patrol evidence	Paper logs, self-reported	Photo-backed checkpoints with timestamp and GPS
Staffing during absence	No guaranteed cover	Contingency roster built into pricing
Guard vetting	Minimal or undocumented	BS 7858-aligned screening on file
Insurance proof	Provided on request only	Current certificates issued proactively
Incident reporting	Delayed, informal	Logged in real time with named responder
Contract transparency	Bundled, unclear fees	Itemised pricing, no hidden call-outs

Priority First addresses the patrol-evidence gap directly. Across its largest portfolio of 24 sites as of August 2026, Priority First has recorded more than 4,900 photo-backed patrols, each carrying officer ID, GPS location and a timestamp — a standard that turns "the guard did a round" from an unverifiable claim into a documented fact, and one that cheaper providers relying on paper occurrence books structurally cannot match.

What questions should I ask a security provider to compare quotes fairly?

Comparing security quotes fairly means asking each provider the same structured set of questions rather than comparing headline day-rates alone. Two quotes with an identical hourly figure can represent very different levels of actual protection once staffing ratios, training and insurance are accounted for.

Ask every provider:

1. What is each guard's SIA licence number, and in which sector?
2. What screening process do guards undergo before deployment — does it follow BS 7858?
3. What insurance cover is in place, and can you see the certificates now?
4. How is a patrol or checkpoint verified — paper log, photo evidence, GPS timestamp?
5. What happens if a guard is sick or leaves — is contingency cover built into the price?
6. What is the average tenure of guards on comparable contracts?
7. What SLAs govern response times for alarm activation or incident escalation?

A provider unable to answer these clearly, or unwilling to show documentation, is signalling the same corners a suspiciously low price already suggests.

Your cheap security quote risk checklist

• Verify every guard's SIA licence number on the public register before deployment
• Request current employer's liability and public liability insurance certificates
• Ask whether guard screening follows BS 7858 and request confirmation in writing
• Confirm how patrols are evidenced — paper log versus photo-backed checkpoint with timestamp
• Check the provider's Companies House registration and trading history
• Ask about average guard tenure and contingency cover for absence
• Compare total contract cost including call-out fees, not just the headline day-rate
• Confirm SLAs for incident response and escalation before signing anything

FAQ

What are the hidden costs of choosing the cheapest security guard company?

The hidden costs include retraining fees from high staff turnover, emergency call-out charges when shifts fall short, equipment replacement, and the financial fallout of an incident the original quote failed to prevent. Security services turnover reached 77% in 2026 according to ASIS International (via HappyFleet), meaning constant re-induction costs are built into cheap contracts even before an incident occurs.

Are UK security companies legally required to hold SIA licensing?

Individual security staff performing licensable activities — manned guarding, door supervision, CCTV operation — must hold an SIA licence under the Private Security Industry Act 2001. There are around 451,000 active SIA licence holders in the UK as of 2026, and any building owner can verify a specific licence on the SIA's public register before a guard is deployed.

Can I be held liable if a security failure leads to a break-in or injury?

Yes, a building owner or business can face liability under vicarious liability principles and the Health and Safety at Work etc. Act 1974 even when security is outsourced. Contracting out the task does not transfer legal responsibility for what happens on your premises.

How do I check if a security company's quote is unrealistically low?

Compare the quote against the actual cost of SIA-licensed wages, BS 7858 screening, insurance and supervision for your site's size and risk profile. If a provider cannot explain how their price covers all of these, staffing levels, training or insurance are likely being cut.

What insurance should a security provider have in place?

A legitimate provider needs employer's liability insurance (a legal requirement in the UK), public liability insurance — ideally £5 million or more for commercial premises — and, where relevant, professional indemnity cover. Request current certificates before signing any contract, not after.

Does poor security affect my business insurance premiums?

Insurers can increase premiums, apply higher excesses, or dispute claims where a break-in or loss is linked to inadequate or non-compliant security provision. Maintaining documented, licensed and properly insured security cover supports a stronger position when making or renewing an insurance claim.

What questions should I ask before signing a security contract?

Ask for SIA licence numbers, insurance certificates, screening standards, patrol verification methods, contingency arrangements for staff absence, and average guard tenure. A provider unwilling or unable to answer these directly is a warning sign regardless of the quoted price.

Securing your building properly with Priority First

Choosing security on price alone leaves London building owners exposed to exactly the risks this article has covered — understaffing, unverifiable patrols, and liability gaps that surface only after an incident. Priority First builds accountability into every contract from the outset, with SIA-licensed manned guarding, keyholding and alarm response, and CCTV monitoring backed by photo-verified checkpoint evidence rather than paper logs.

When a Covent Garden site was broken into overnight, Priority First had an SIA-licensed operative on site within two hours of the initial call — proof that fast, compliant response and proper standards are not mutually exclusive. Priority First currently protects over £1.6 billion in client assets across prime central London, West London, and contracts extending to the West Midlands and Bedfordshire.

If you are comparing security quotes and want a clear-eyed assessment of what genuine protection costs, contact Priority First for a quote built around your building's actual risk profile, not the lowest number on the page.

Related Reading

• Building Management Mayfair | Priority First Guide 2026
• Building Management Company Knightsbridge | Priority First
• Building Management Company Westminster | Priority First