Why You Should Choose an SIA Approved Contractor for Your Mobile Security, Keyholding and Alarm Response Services
November 2, 2026
When protecting your business, an SIA licence alone should not be the only standard you look for. Discover why independently assessed security companies offer greater assurance, stronger vetting, improved accountability and support for insurance compliance.
When protecting your business, an SIA licence alone should not be the only standard you look for. Discover why independently assessed security companies offer greater assurance, stronger vetting, improved accountability and support for insurance compliance.
Choosing a security company is an important business decision. Whether you require mobile security patrols, keyholding and alarm response, vacant property inspections or scheduled lock and unlock services, you are placing the safety of your premises, assets and potentially your employees in somebody else's hands.
But how much do you really know about the company you are appointing?
Are its directors and controlling individuals independently assessed? Are its security officers appropriately vetted? Does the company operate to recognised British Standards? Are its finances, management procedures and operational practices subject to independent scrutiny?
Perhaps most importantly, could your choice of security provider affect your ability to demonstrate compliance with your commercial insurance obligations?
These are questions that businesses across Wiltshire, Bath, Salisbury, Swindon, Chippenham, Melksham, Trowbridge and the wider South West should be asking before appointing a mobile security provider.
At CR2 Security Group, we believe professional security should be built on demonstrable competence, integrity and accountability, not simply the possession of an SIA licence.
As an SIA Approved Contractor for Keyholding, Security Guarding and Door Supervision, we have undergone independent assessment against recognised industry standards.
Here is why that matters to your business.
The Security Industry Authority (SIA) is the statutory regulator of the UK's private security industry.
While the SIA licenses individuals undertaking regulated security activities, its voluntary Approved Contractor Scheme (ACS) provides independent quality assurance of security businesses.
The distinction is important.
An individual holding a valid SIA licence has met the relevant licensing requirements for their role. However, this does not automatically mean the company employing or deploying that individual has been independently assessed for its financial integrity, management practices, operational competence or recruitment procedures.
The SIA Approved Contractor Scheme addresses this gap.
According to the SIA, approved contractors are assessed against 78 achievement indicators, covering areas including:
Importantly, approval is granted for specific regulated activities. A company approved for Door Supervision is not automatically approved for Keyholding or Security Guarding.
For businesses purchasing mobile security patrols and alarm response services, checking the relevant approval scopes is therefore essential.
Source: Security Industry Authority – Choosing an SIA Approved Contractor
One of the most important, yet frequently overlooked, benefits of appointing an SIA Approved Contractor is the scrutiny applied to the people controlling the business.
Security companies are entrusted with sensitive information, site access arrangements, keys, alarm codes and knowledge of potentially vulnerable premises.
Surely the integrity of the individuals running those businesses should be just as important as the qualifications of the officers they deploy?
The SIA conducts fit and proper checks on the people running businesses applying for ACS approval.
These checks consider:
This is not simply a company declaring itself reputable or publishing a statement about its professionalism.
It is a regulatory assessment designed to establish whether those controlling the organisation meet the requirements of the scheme.
Approved contractors must continue to satisfy the scheme's fit and proper conditions to maintain their approval.
For customers, this provides an important additional layer of assurance when entrusting a third-party organisation with access to valuable assets and confidential security information.
Although no accreditation can guarantee that misconduct will never occur, independent scrutiny of those controlling a security business is a meaningful safeguard.
Source: SIA – Apply for ACS Approval
One of the strongest reasons to carefully select your mobile security and alarm response provider is the potential impact on your commercial insurance obligations.
Many businesses assume that having an intruder alarm installed is sufficient.
However, commercial insurance policies may also impose conditions concerning alarm maintenance, keyholder arrangements, response procedures and the security of premises following an activation.
Failure to meet applicable policy conditions can have serious consequences.
Insurance provider Aviva has published detailed risk management guidance covering security personnel, keyholding, mobile patrols and intruder alarm response.
In its Security – Personnel Risk Management guidance, Aviva identifies circumstances where appointing a professional security company to provide keyholding and response services may be more appropriate than relying on police attendance.
Significantly, Aviva's guidance states that providers should operate in accordance with BS 7984-3:2020, the British Standard covering mobile security services, and have SIA Approved Contractor status.
The guidance also recommends third-party accreditation through recognised schemes such as those operated by the National Security Inspectorate (NSI) or Security Systems and Alarms Inspection Board (SSAIB).
This is an important distinction: Aviva's guidance specifically recognises the value of independently assessed mobile security providers.
Source: Aviva – Security: Personnel Risk Management
Potentially, yes.
Aviva's Commercial Combined policy wording provides a particularly useful example.
Where the relevant intruder alarm condition applies to a policy, the wording requires keyholders to attend following specified alarm notifications as soon as reasonably possible, confirm the security of the premises and take the required action concerning the alarm system.
The wording also includes provisions concerning maintaining security where the alarm cannot be fully reset.
Crucially, the policy wording states that failure to satisfy applicable intruder alarm conditions can result in the loss of entitlement to payment for certain theft-related claims.
This demonstrates why professional alarm response arrangements should never be treated as an afterthought.
Source: Aviva – Commercial Combined Policy Wording
Not necessarily.
There is no universal requirement that every commercial insurance policy must use an SIA Approved Contractor.
Insurance obligations depend on the individual insurer, policy wording, schedule, endorsements and the nature of the insured risk.
However, Aviva's published risk management guidance explicitly supports the use of SIA Approved Contractors for relevant mobile security services.
Businesses should therefore establish whether their insurer requires or recommends particular accreditations, response arrangements or British Standards.
The key question is not simply whether your security company can attend an alarm. It is whether your security arrangements meet the obligations you have agreed to with your insurer.
Choosing an independently assessed provider can support that process, but it does not replace reviewing your policy or obtaining confirmation from your insurer.
One of the greatest security risks does not always come from outside your premises.
An insider threat can arise when somebody with authorised access misuses their position, knowledge or privileges.
Security officers may have access to sensitive areas, alarm codes, keys, entry procedures, building layouts and information about when premises are unoccupied.
This makes robust recruitment and employee screening particularly important.
BS 7858 is the British Standard for screening individuals working in a secure environment.
It establishes a structured approach to pre-employment screening intended to help organisations assess the suitability and reliability of individuals being placed in positions of trust.
The SIA confirms that Approved Contractors must ensure their pre-employment screening conforms to BS 7858 or the applicable requirements of the ACS standard.
This is particularly relevant because an SIA licence and BS 7858 employment screening serve different purposes.
Holding an SIA licence does not automatically demonstrate that an individual has completed the full employment screening process required under BS 7858.
Appropriate screening can help identify inconsistencies, unexplained employment history, identity concerns and other relevant risk factors before an individual is entrusted with sensitive security responsibilities.
When combined with effective supervision, controlled access to keys, incident reporting and management oversight, these measures can reduce opportunities for insider misconduct.
Consider the difference between appointing a security company that simply checks whether an individual holds an SIA licence and one operating under independently assessed recruitment and screening requirements.
For a business entrusting security personnel with unrestricted or unsupervised access, that difference matters.
Screening cannot eliminate insider threats, but it forms an important part of a proportionate, layered security strategy.
Source: SIA – Approved Contractors and Pre-Employment Screening
Security procurement should involve more than comparing hourly rates or patrol prices.
Businesses should also consider whether their chosen provider is financially responsible, appropriately managed and capable of delivering services consistently.
The SIA Approved Contractor Scheme assesses financial management as part of its wider quality assurance framework.
Furthermore, the SIA's fit and proper checks include consideration of the financial probity of those controlling the business.
This matters because poor financial management, inadequate employment practices and unstable business arrangements can introduce risks into the security supply chain.
A security company facing serious operational or financial difficulties may struggle to maintain staffing levels, training, equipment, management oversight or continuity of service.
Independent assessment provides additional assurance that these important business management considerations have been examined.
However, ACS approval should not be interpreted as a guarantee of future solvency or financial performance.
At CR2 Security Group, we believe responsible employment practices, transparent business management and compliance should be fundamental expectations, not optional extras.
A common misconception within the security industry is that appointing SIA-licensed officers automatically means a business has appointed a fully assessed security provider.
That is not the case.
An SIA licence relates to an individual's eligibility to perform specific regulated security activities.
SIA Approved Contractor status relates to the business supplying those services and the systems it has in place.
There is a significant difference between employing SIA-licensed security officers and appointing an SIA Approved Contractor.
An individual SIA licence demonstrates that a person has met the relevant requirements to undertake regulated security activities. However, it does not mean the company employing them has undergone independent assessment.
The SIA Approved Contractor Scheme (ACS) goes considerably further, assessing the security business itself against recognised standards of management, integrity, competence and service delivery.
SIA Licence: Confirms that an individual has met the relevant licensing requirements.
SIA Approved Contractor: Requires appropriate operative licensing alongside wider business compliance requirements.- Company Management Assessment
SIA Licence: Does not assess the management or operational practices of the company employing the individual.
SIA Approved Contractor: The company's management systems, leadership and operational procedures undergo independent assessment.
SIA Licence: Individual licensing checks do not establish whether the directors and controlling individuals of the employing company have been assessed as fit and proper.
SIA Approved Contractor: The SIA conducts fit and proper checks on relevant individuals controlling the business, considering identity, criminality, financial probity and integrity.- Financial Management Assessment
SIA Licence: Does not assess the financial management or business stability of the employer.
SIA Approved Contractor: Financial management forms part of the independent business assessment.- BS 7858 Security Screening
SIA Licence: Holding an individual licence does not automatically demonstrate completion of BS 7858 employment screening.
SIA Approved Contractor: The business must meet the scheme's applicable pre-employment screening requirements, including BS 7858.
SIA Licence: Does not provide an independent quality assessment of the security company.
SIA Approved Contractor: The business undergoes assessment against the SIA's Approved Contractor Scheme standards, including operational performance, customer service and management processes.
SIA Licence: Individuals must maintain their licence and continue to meet applicable licensing requirements, but this does not constitute an ongoing assessment of their employer.
SIA Approved Contractor: The company is subject to ongoing scheme requirements and periodic independent reassessment to maintain its approval.
When appointing a company to provide mobile security patrols, keyholding or alarm response, you are trusting that organisation with access to your premises, confidential security information and potentially valuable assets.
An SIA licence tells you something about the individual. SIA Approved Contractor status tells you considerably more about the company behind them.
For businesses across Wiltshire, Bath, Salisbury, Swindon, Chippenham and the surrounding areas, choosing an independently assessed security provider offers an additional level of assurance, accountability and confidence.
This does not mean every non-ACS security company is unsuitable or operates below acceptable standards.
Many security businesses voluntarily implement robust procedures without participating in the scheme.
However, the difference is that an SIA Approved Contractor has submitted to a recognised external assessment process.
For organisations seeking independently evidenced assurance, that is a significant advantage.
Professional mobile security involves considerably more than driving between premises and checking whether doors are locked.
Effective mobile patrols require planning, risk assessment, communication, trained personnel, suitable operating procedures and documented reporting.
Relevant British Standards include:
BS 7984-1: General recommendations for keyholding and response services.
BS 7984-3: Code of practice for the provision of mobile security services.
BS 7858: Screening of individuals working in a secure environment.
BS 10800: Provision of security services.
These standards provide important frameworks for professional security operations.
They address matters such as operational arrangements, management responsibilities, personnel and service delivery.
For customers purchasing mobile patrols, keyholding and alarm response, adherence to applicable standards helps demonstrate that security is being managed systematically rather than informally.
The SIA confirms that following relevant British Standards is a condition of ACS approval.
Source: SIA – British Standards Applicable to Private Security
What evidence would you receive if your business experienced a security incident overnight?
Would your security company be able to demonstrate when its officer attended, what was inspected, what was discovered and what action was taken?
Would you receive a professional incident report, or simply a telephone call confirming that everything appeared satisfactory?
For many organisations, particularly those managing multiple sites, reliable security reporting is essential.
Documented mobile patrols and alarm response attendance can support:
At CR2 Security Group, our operational reporting is supported by advanced digital technology, allowing customers to access relevant security reports and incident information immediately.
We believe customers should have visibility of the security services they are paying for.
Professional security is not simply about attending a location. It is about being able to demonstrate what was done, when and why.
Another important consideration is who will actually deliver the security services you purchase.
A business may appoint one security company only to discover that the work is being subcontracted to another provider.
This can create additional questions concerning accountability, vetting, insurance, operational procedures and service consistency.
The SIA Approved Contractor Scheme places restrictions on subcontracting.
Approved Contractors are generally required to subcontract regulated security services to other Approved Contractors unless the SIA has granted specific permission.
This provides an additional level of oversight within the security supply chain.
At CR2 Security Group, we operate a direct PAYE employment model for our operational personnel, supporting clearer employment accountability and management control.
For customers, understanding who is protecting their premises and how those individuals are employed and supervised should be a fundamental part of security procurement.
Accreditations are important, but they must be supported by effective operational delivery.
A security company can hold recognised certifications and still be unsuitable for a particular site if it lacks adequate local coverage, response arrangements or knowledge of the area.
When selecting a provider, businesses should consider:
At CR2 Security Group, we provide professional mobile security services across Wiltshire, Somerset and surrounding areas.
Our operational coverage includes Bath, Salisbury, Swindon, Chippenham, Melksham, Trowbridge, Westbury, Warminster, Corsham, Calne, Devizes, Bradford-on-Avon, Frome and Amesbury.
During October 2026, our reported average alarm response time was 24 minutes, reflecting our focus on measuring operational performance.
Actual response times will depend on site location, traffic, weather, concurrent incidents and other operational factors.
We believe transparent performance monitoring is more valuable than unrealistic guarantees.
CR2 Security Group is a Wiltshire-based, veteran-owned security company providing professional security services to businesses, organisations and property owners across the South West.
We understand that customers need more than a security provider promising reliability.
They need a company that can demonstrate its competence, operate to recognised standards and provide accountability when it matters.
CR2 Security Group holds SIA Approved Contractor status for:
During our 2026 full-scope ACS assessment, we expanded our approval scopes and achieved a 33-point improvement over our previous assessment.
Alongside our ACS approval, we hold ISO 9001:2015 certification, demonstrating our commitment to quality management systems and continual improvement.
Our operational personnel are directly employed through PAYE, and our recruitment and screening arrangements are designed to meet the requirements of our ACS approval.
We provide a range of complementary services, including:
Our customers benefit from structured reporting and operational oversight with direct access to their own customer portal.
Our experience includes supporting commercial, educational, industrial and public-sector customers across Wiltshire, Bath and the wider South West.
We believe the quality of a security company should be demonstrated through its people, processes, performance and accountability.
Choosing an SIA Approved Contractor provides additional assurance that the business has undergone independent assessment of its management, operational procedures and quality standards. It is particularly relevant when purchasing mobile security patrols, keyholding and alarm response services.
Not necessarily. Insurance requirements vary between policies and insurers. However, Aviva's published security risk management guidance recommends SIA Approved Contractor status for relevant mobile security and response providers. Always check your specific policy conditions.
An SIA licence applies to an individual undertaking regulated security work. SIA Approved Contractor status applies to a business that has met the requirements of the voluntary ACS quality assurance scheme for specified security activities.
Yes. The SIA conducts fit and proper checks on the people controlling businesses applying for approval. These include checks relating to identity, criminality, financial probity and integrity. Approved Contractors must continue to meet the relevant requirements.
It can help reduce risk through requirements for structured recruitment, personnel screening and management oversight. BS 7858 screening is particularly relevant to individuals working in positions of trust. However, no screening process eliminates every potential insider threat.
BS 7984-3 is the relevant code of practice for the provision of mobile security services. BS 7984-1 covers general keyholding and response service recommendations, while BS 7858 addresses personnel screening.
A claim may be affected if the policyholder fails to meet applicable insurance conditions. This depends on the precise policy wording, the circumstances and relevant insurance law. Simply choosing a non-ACS contractor does not automatically invalidate cover.
CR2 Security Group is an SIA Approved Contractor for Security Guarding and Keyholding and provides mobile security services across Wiltshire, including Salisbury, Swindon, Chippenham, Melksham, Trowbridge, Westbury and surrounding areas.
Yes. CR2 Security Group provides mobile security patrols, keyholding and alarm response services in Bath and surrounding parts of Somerset.
When appointing a mobile security provider, businesses should look beyond the lowest quotation.
The company you choose may be responsible for protecting valuable assets, responding to emergencies, holding keys and accessing premises when nobody else is present.
Its integrity, competence, employment practices, operational capability and accountability should therefore be central to your decision.
An SIA licence is an essential individual requirement for relevant regulated security work. But independently assessed business standards provide an additional layer of assurance.
With recognised industry accreditations, established operational procedures and a commitment to professional service delivery, CR2 Security Group provides businesses with a security partner they can assess against recognised standards.
If you require SIA approved mobile security patrols, keyholding or alarm response services in Wiltshire, Bath, Salisbury, Swindon, Chippenham or surrounding areas, contact CR2 Security Group to discuss your requirements.
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