Security services in London vary widely depending on the level of risk, hours covered, and whether you need a static guard, mobile patrols, or close protection. For most businesses and homeowners, the biggest cost drivers are coverage hours (daytime vs 24/7), guard licensing and experience, and whether you require additional duties like access control, CCTV monitoring, or incident reporting.

For residential security patrol costs, mobile patrols are usually priced per visit or per route, making them a cost-effective option if you don’t need a guard on-site all day. Costs increase if you want irregular patrol patterns, multiple checkpoints, concierge-style checks (deliveries/visitors), or rapid alarm response. Gated communities and high-value homes often combine scheduled patrols with CCTV and remote monitoring to reduce full-time staffing.

If you’re calculating security guard cost per month, start with the hours required. A daytime presence on weekdays is significantly cheaper than nights, weekends, and public holidays, and 24/7 coverage is the most expensive because it requires multiple guards to cover shifts, breaks, and rotation. Expect higher rates for guards with specialist skills (conflict management, first aid, fire marshal) or roles needing strong customer service.

So, how much do security guards cost to hire in London? The most accurate way to budget is to map your site risks, entry points, and required hours, then request a quote based on staffing levels, patrol frequency, and reporting expectations.