Home security systems in the UK vary in price depending on the type, size, and features you choose. From simple alarm kits to full smart security networks, the overall cost can range from a few hundred pounds to several thousand. This guide explains what affects the price and what you can expect to pay for different homes.
The Main Parts and What They Cost
A typical home security system includes motion sensors, door and window contacts, a control panel, an internal and external alarm siren, and possibly one or more CCTV cameras. Each component contributes to the total price, depending on brand and quality.
Basic DIY kits with a few sensors and a control hub start from around £150 to £300. Mid-range packages with extra cameras, smart app control, and integration with lighting or locks can cost between £400 and £800. High-end setups, often used in large homes or commercial buildings, can exceed £1,500 with professional-grade cameras and full smart home features.
Additional accessories such as glass-break sensors, smoke detectors, and panic buttons can add £25 to £60 per unit.
Wired or Wireless and How That Changes Price
Wired systems usually have higher installation costs because they require cabling through the property. However, they tend to be more stable and require less maintenance once fitted. Professional installation for a wired system can cost between £250 and £600 depending on property size and layout.
Wireless systems, which rely on Wi-Fi or radio connections, are quicker and cheaper to install. Most DIY wireless kits cost £200 to £600, while professionally installed versions typically range from £400 to £900. Many wireless models are battery powered and easy to expand with extra sensors later on.
Hybrid systems that use both wired and wireless components can provide a balance between cost, reliability, and flexibility, often priced in the £800 to £1,200 range.
One-Time Costs vs Monthly Costs
When planning your budget, it helps to separate one-off installation and equipment fees from any ongoing monthly payments. A self-monitored DIY system will usually have only one-time costs for the equipment itself, while a professionally monitored system includes a subscription for 24-hour alert handling.
Most UK monitoring packages start at around £20 per month, with higher tiers offering camera cloud storage or police response for £35 to £50 per month. If you use smart cameras, cloud storage can cost an additional £3 to £10 per camera per month depending on the plan and provider.
Battery replacements and app subscriptions are minor ongoing expenses, but it is worth including them when comparing systems side by side.
Typical Prices for Small, Semi-Detached and Larger Homes
For a small flat or apartment, a compact alarm kit with 2–3 sensors and a control hub can cost between £150 and £300, with optional add-ons like a camera or smart doorbell bringing it closer to £400.
Semi-detached homes typically need more coverage, including additional sensors, cameras, and possibly outdoor lighting integration. Expect to pay between £500 and £900 for a mid-range system installed professionally.
Larger detached homes or properties with outbuildings often require multiple cameras, zone coverage, and advanced monitoring. These systems usually cost between £1,000 and £2,500 depending on complexity and the level of automation chosen.
Monitoring Options and Monthly Fees
Self-monitoring systems rely on smartphone notifications and user action, making them a low-cost choice for tech-savvy homeowners. They typically have no ongoing fees apart from optional cloud video storage.
Professionally monitored systems add extra protection through a 24/7 control centre that responds to alerts and can contact emergency services if necessary. Monthly plans usually range from £20 to £50, with higher-end providers offering features such as guard response or linked fire alarms.
For many UK households, combining a smart self-monitored setup with a paid camera plan provides a good balance between cost and reliability.
Looking for reliable electronic security solutions? Redwood Electrical Services installs and maintains advanced security and surveillance systems across Woking, Guildford, Cobham and nearby areas. Our services include CCTV, alarm systems, automated gates and smart home integration to keep your property secure day and night.
