Choosing a security company in London is easier when each proposal answers the same brief. Start with the people, premises or activities that need support, then compare the proposed service and the evidence behind it. These seven checks help make that comparison practical.
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Start with a clear security company brief
A general request for security can mean many different things. Accompanying a client during appointments, guarding an entrance and supporting a private event involve different responsibilities. Explain the activity and the intended outcome before asking for a price.
Include the dates, expected hours, location and main contact. Identify existing arrangements, such as a venue team, a driver or household staff, that the provider will need to work alongside. At the first enquiry stage, avoid sharing access codes or unnecessary private details.
A security company can then ask informed questions and assess suitability. Without this starting information, two quotations may describe quite different services even if they use similar language. A short written brief gives you a consistent basis for the discussion.
1. Compare the proposed service
Ask each provider to explain the main duties in plain language. The proposal should identify the responsibilities that are included and the important limits. If a phrase such as comprehensive protection appears, ask what that means for the particular assignment.
Check where responsibilities meet. If the client moves from an event into a vehicle, who coordinates that transition? If a guard covers an entrance, who handles other areas? These questions help identify gaps without publishing detailed operational arrangements.
Do not assume that a longer service list makes a provider more suitable. The relevant question is whether the security company can deliver the work you need, with appropriate personnel and management. Specialist requirements should be discussed explicitly and confirmed in the written scope.
2. Assess security company experience
Look for experience that relates to the setting. A luxury store, a family residence and a public appearance place different demands on presentation, communication and judgement. Ask how comparable experience will inform the proposed assignment.
Reviews and testimonials can contribute to your assessment, but they are only part of the picture. Ask appropriate questions about who delivered the work and what was involved. Confidentiality may prevent the provider from identifying a client or sharing private details publicly.
Stock images do not prove that a security company lacks clients, and a photograph with a well-known person does not prove the quality of a service. Evaluate claims through relevant evidence and direct discussion rather than assumptions about website imagery alone.
3. Verify credentials for their actual purpose
Check relevant individual SIA licences using the official register. The licence needed depends on the activities. A qualification certificate and a current licence answer different questions, so establish which people and roles the proposal covers.
Company credentials should also be read accurately. The SIA’s Approved Contractor Scheme is voluntary and separate from individual licensing. If approval is advertised, verify the current status and approved activities rather than inferring it from general SIA references.
Request appropriate insurance evidence for the proposed work. Where quality certification is mentioned, review its scope and validity. A security company should explain these credentials clearly, without presenting one certificate as a guarantee of safety or a substitute for every other check.
4. Understand who will deliver the assignment
Ask about the proposed staffing and relevant experience. If a particular background, language or specialist skill matters, state it at the outset. Availability should be confirmed rather than assumed from a general description of the provider’s wider team.
Discuss whether personnel are supplied directly or through another arrangement, and who remains responsible for management. Subcontracting is not something to infer from photographs or marketing language. It is a delivery question that can be addressed openly in the proposal.
Check how personnel will receive the brief and how changes are passed on. A security company may have good written procedures, but the useful test is whether the people carrying out the work will have the information and support needed for this assignment.
5. Test security company communication
Confirm the client contact and the provider contact. The client may be an individual, an assistant, a household manager or a business team. Where several people are involved, identify who can approve instructions, extensions and other changes.
Ask what updates are proposed and how concerns are escalated. The frequency and detail should suit the assignment. A short engagement may need a different reporting arrangement from ongoing guarding, and sensitive information should be shared through an agreed channel.
Consider how clearly the security company answers ordinary questions during the enquiry. Useful communication explains the proposed arrangements and any outstanding decisions. Be cautious about treating a confident promise as equivalent to a confirmed plan.
6. Compare security company quotations fairly
Place the proposals against the same dates, hours, duties and staffing assumptions. Check whether travel, vehicles, accommodation, additional hours or specialist requirements are included. Ask about any minimum booking that affects the total cost.
Separate the hourly rate from the overall scope. A quote for one person carrying out a limited role cannot be directly compared with a managed team covering a broader programme. If the assumptions differ, ask for them to be made explicit before deciding.
Review the proposed contract privately before confirmation. Understand the process for changes and cancellation, the payment arrangements and the responsibilities of each party. Website articles provide general information; the agreed booking documents establish the terms of the particular service.
7. Check continuity and review arrangements
Ask what happens if an assigned person becomes unavailable or the programme changes. The answer should describe the communication and replacement process, subject to the actual availability and agreed terms. Avoid assuming that unlimited additional cover is automatically included.
For ongoing work, agree when the service will be reviewed. Discuss whether duties remain appropriate, whether communication reaches the right people and whether changes to the premises or activities require a revised brief.
A security company comparison should consider delivery after the initial booking. Clear responsibility for handovers, changes and reviews helps maintain a workable arrangement over time. These details may be more useful than a long list of general marketing claims.
Keep a simple comparison record
Record the important answers while speaking to providers. A short list can prevent a useful detail from being lost between conversations. Mark any assumption that still needs written confirmation rather than treating silence as agreement.
- Assignment: dates, locations, hours and primary duties.
- People: proposed staffing, relevant experience and licence checks.
- Management: delivery responsibility and named contacts.
- Price: included items, exclusions and change arrangements.
- Confirmation: outstanding decisions, availability and booking terms.
Use the record to ask focused follow-up questions. If a proposal changes after discussion, obtain an updated version so that the final decision refers to the current arrangement. Keep sensitive staffing and itinerary information appropriately restricted.
Considering Spartan Elite Security
Spartan Elite Security was founded in 2017 by Mr Sotiropoulos and is based in Mayfair, London. Our ten service areas include close and executive protection, celebrity and talent protection, guarding, residential and estate security, executive driving, events and travel-related support.
The testimonials page provides published client feedback, while the verification page contains ISO 9001 information. Use these alongside a direct discussion of the assignment, rather than assuming that any single credential answers every question.
Request a proposal
Use Request Security to describe the requirement, preferred dates and a suitable contact. You can also call 0800 933 0000. Our address is 12 Old Bond Street, Mayfair, London W1S 4PW.
A useful security company proposal begins with a clear conversation. Spartan can review the brief, discuss suitability and availability, and explain the arrangements offered so that you can make an informed comparison before booking.


