Two Approaches to Property Security
If you own or manage a vacant building, you have probably weighed up whether to place property guardians on site or hire security guards. Both options deter crime, prevent squatting, and reduce insurance risk, but they work in fundamentally different ways. Understanding those differences will help you pick the approach that fits your property, your timeline, and your budget.
Property guardians live in the building full-time, turning an empty space into an occupied one. Security guards patrol or station themselves at a property during set hours. Each model has clear strengths, and in many cases the best solution is a combination of both. This guide breaks down how each option works, what it costs, and when to use which.
How Property Guardians Work
Property guardians are vetted individuals who move into an otherwise vacant building under a licence agreement, not a tenancy. This is an important legal distinction: a licence agreement gives the property owner greater flexibility to regain possession of the building when they need it, without the lengthy notice periods associated with residential tenancies.
Guardians are DBS-checked and referenced before placement. They pay a licence fee to live on site, which means the property owner typically receives the security benefit at little or no net cost, and in some arrangements the building can even generate a small income rather than draining resources while it sits empty.
Because guardians live on site around the clock, the building is never truly unoccupied. Lights go on in the evening. People come and go. The property looks and feels lived in, which is one of the strongest deterrents against squatters, vandals, and opportunistic break-ins. Guardians also act as a first line of reporting: they will notice a broken window, a water leak, or signs of attempted entry far sooner than a weekly inspection ever could.
This model works best for longer-term vacancies, typically three months or more. It is well suited to residential blocks, former office buildings, ex-care homes, and other properties with existing facilities like running water, heating, and power.
How Security Guards Work
Security guards are SIA-licensed professionals who provide a visible, trained presence at your property. They can be deployed as static guards, stationed at a fixed point such as a reception desk or gate, or as mobile patrol officers who visit the site at scheduled or random intervals throughout the day and night.
Guards are trained in conflict management, access control, and emergency response. They can carry out key holding duties, respond to alarm activations, and manage entry and exit logs. Their presence is especially effective where an active deterrent is needed, for example at construction sites where valuable plant and materials are stored overnight.
Security guards work on a shift basis. You can book cover for specific hours, such as overnight only or weekends only, and scale up or down at short notice. This flexibility makes them a practical choice for shorter-term needs or situations where full-time occupation is not feasible.
The trade-off is cost. Because you are paying for a trained, licensed professional to be physically present during each shift, the daily expense is considerably higher than a guardian placement. However, you gain the ability to deploy and withdraw quickly, sometimes within 24 hours.
Cost Comparison
For property owners watching their budget, the cost difference between guardians and security guards can be significant.
Property guardians are typically the most cost-effective way to secure a vacant building over the medium to long term. Because guardians pay a licence fee to live on site, the net cost to the property owner is generally very low. In many cases it is lower than the cost of leaving a building empty and paying for periodic inspections, not to mention the insurance premium reductions that come with having an occupied property.
Security guards, by contrast, represent a higher daily outlay. A single static guard covering a 12-hour overnight shift will typically cost several times more per week than a guardian placement costs per month. Mobile patrols are more affordable than static guards, but they provide intermittent rather than continuous presence.
That said, security guards offer something guardians do not: the ability to scale precisely to your needs. If you only need cover for two weekends while a contractor finishes a job, guards are the sensible choice. Paying for a full guardian setup for a fortnight would not make sense.
The right question is not simply which option is cheaper, but which option gives you the best value for the duration and nature of the risk you are managing.
When to Choose Guardians
Guardians tend to be the better fit when:
- The building will be vacant for three months or more. The longer the vacancy, the more cost-effective guardians become relative to other options.
- Budget is a primary concern. Guardians offer round-the-clock presence at a fraction of the cost of manned security.
- The property benefits from looking occupied. An occupied building is far less attractive to squatters, and many local authorities prefer guardian schemes over boarded-up properties.
- The building is a residential block, office, or similar property with basic amenities. Guardians need running water, power, and heating to live on site comfortably and safely.
- You want to reduce insurance premiums. Many insurers offer lower rates for occupied buildings, even when occupied by guardians under licence.
When to Choose Security Guards
Security guards are usually the stronger option when:
- The need is short-term. A few days or weeks of cover is straightforward to arrange and does not require the setup involved in a guardian placement.
- The site is an active construction project. Guardians cannot live on a working building site. Guards can patrol and secure it overnight and at weekends.
- Higher-level security threats are present. If there is a known risk of targeted theft, organised trespass, or protest activity, trained SIA-licensed guards are better equipped to respond.
- You need coverage only during specific hours. Guards can be booked for overnight shifts, weekends, or any other window without paying for round-the-clock presence.
- You are securing an event or temporary situation. One-off events, demolition periods, or handover windows are all well suited to guard cover.
Can You Combine Both?
Yes, and many property owners do exactly that. A combined approach can give you the best of both worlds: the continuous, cost-effective presence of guardians for baseline security, supplemented by periodic mobile patrols from security officers for added deterrence and incident response.
For example, a guardian scheme might secure a large vacant office building during the week, while mobile patrol officers carry out nightly checks of the perimeter and car park. Or guardians might occupy the main building on a site while security guards cover an adjacent construction zone that is not suitable for habitation.
This layered approach is particularly effective for larger or higher-value properties where the consequences of a security breach would be severe. The guardians provide eyes on the ground around the clock, and the patrols add an unpredictable, visible security presence that keeps potential intruders guessing.
The key is matching the level of security to the actual risk. Over-securing a low-risk property wastes money. Under-securing a high-risk one can cost far more in the long run through damage, theft, or legal liability. A good security provider will assess the property, explain the options honestly, and recommend the combination that makes sense for your situation.
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