Own it, redeploy it
When a property is sold or re-let, the kit moves to the next vacant property — no need to buy a complete new system every time.
Property Monitoring
Empty buildings, quietly watched.
Wireless sensors and a 4G gateway keep watch over vacant homes and buildings — water, damp, frost, fire, gas, access and power — and tell you the moment something changes. No broadband, no Wi-Fi, no phone line needed.
Gateway — The Old Rectory
Online 4G
12 sensors reporting · battery backup OK
Loft temperature
12.4 °C
Bathroom humidity
61 %
Mould risk: low
Leak — kitchen
All dry
Checked 42 s ago
Front door
Closed
Last opened 6 days ago
Simulated preview — not live data
How it works
Simple monitoring, without relying on the property.
Each property gets one small gateway and a set of wireless sensors. The gateway sends readings and alerts over its own mobile-data connection, so an empty building needs nothing — no broadband, no Wi-Fi, no phone line.
Power resilience
Where mains power is available, a small battery backup keeps the gateway online during an outage. For sites with no electricity at all, an off-grid solar and battery option is available.
Sensors
Placed where problems start: near the stopcock and boiler, in wet rooms and at entry points. Most are battery powered.
Gateway
One compact unit receives the sensor readings and sends them securely over 4G.
Dashboard & alerts
A simple property view, a daily status email and immediate email/SMS alerts when something needs attention.
What we watch for
The risks we monitor.
The aim is not to fill a property with gadgets. It is to cover the events most likely to cause loss in an empty building — and tell the right people quickly.
Escape of water
Leak sensors sit under stopcocks, boilers, tanks, bathrooms and kitchens. An optional automatic shut-off valve can isolate the water supply the moment a leak is detected.
Damp & frost
Temperature and humidity monitoring highlights condensation, mould risk and rooms approaching freezing — before pipes burst or walls suffer.
Fire & gas
Connected smoke and gas detection raises an off-site alert even when nobody is inside the property to hear an alarm.
Unauthorised access
Door and window sensors show when a vacant property is entered or disturbed — and when it was.
Power failure
A loss of mains power is itself treated as an alert, helping identify tripped circuits, disconnection or interference.
Condition evidence
A timestamped history shows what happened, when it happened and how the property was behaving between physical visits — useful for property management and insurer conversations.
Monitoring can become active protection
Where the property and its services are suitable, automatic water shut-off and heating control can be added — so the system does more than report a problem, it helps limit it.
Sensors & pricing
What each sensor does — and what it costs.
Hardware is purchased outright and belongs to you, supplied at cost with no equipment markup. Prices below are indicative — they move with availability and market prices, and final quantities are agreed after a property survey.
| Item | Where it goes | Indicative price | Qty |
|---|---|---|---|
| 4G gateway packThe hub — collects every sensor reading and sends it over its own mobile connection | One per property | £120–£150 | |
| Temperature & humidity sensorTracks damp, condensation, mould risk and frost | Key rooms, loft, bathroom | £15–£18 each | |
| Door / window sensorFlags any opening of a monitored door or window | Entry points as required | £14–£16 each | |
| Water leak sensorDetects escaped water the moment it appears | Wet areas, plant, stopcock | £15–£20 each | |
| Connected smoke detectorRaises an off-site alert when smoke is detected | Landings, key rooms | from £28 each | |
| Connected gas detectorAlerts to gas where a live supply remains | Kitchen / boiler area | from £35 each | |
| Automatic water shut-offIsolates the water supply automatically when a leak is detected | Subject to valve & plumbing suitability | from £63 + fitting | at survey |
| Battery backupKeeps the gateway online through power cuts | Recommended where mains is used | around £22 | optional |
| Off-grid solar & battery kitPowers the system where the property has no electricity | Sized after survey | from £175 | at survey |
All prices are indicative, exclude installation unless stated, and are confirmed in a written quote after the survey.
Estimated hardware, one-off
£300–£450
12 sensors + gateway, owned by you
Monitoring & dashboard service £50 +VAT/mo Per property — includes dashboard, alerts, SIM data, remote configuration, maintenance and updates.
Monitoring & dashboard service £50 +VAT/mo Per property — includes dashboard, alerts, SIM data, remote configuration, maintenance and updates.
Adjust quantities to match your building — this is an indicative estimate, not a quote.
A worked example
Where everything goes in a 3–4 bedroom house.
Around 10–12 sensors, chosen around the building rather than from a fixed bundle. Tap a room to see what sits there and why.
Loft / bedroom
The coldest, least visited space — first to show frost risk and roof leaks.
- Temperature & humidity sensor
- Smoke detector
Bedroom
Unheated rooms drift towards damp — climate readings catch it early.
- Temperature & humidity sensor
Bathroom
Wet room plumbing plus poor ventilation — the classic quiet-failure spot.
- Temperature & humidity sensor
- Water leak sensor
Landing
The best single point to hear smoke from every upstairs room.
- Smoke detector
Kitchen / utility
Appliance feeds, the stopcock and any live gas supply all meet here.
- Water leak sensor
- Gas detector (if live gas remains)
Main entrance
Access events, plus the gateway where mobile signal is strongest.
- Door / window sensor
- 4G gateway & battery backup
The survey decides the final design
We look at the stopcock, boiler, wet areas, entry points, loft and roof spaces, power availability and mobile signal. That keeps the installation proportionate — you don't pay for sensors that add no useful protection.
Built to move with you
One system for a changing property portfolio.
One dashboard
View every monitored property in one place and see at a glance which ones need attention.
Large or rural sites
Long-range wireless options cover estates, outbuildings, churches and commercial units; solar power covers sites with no mains supply.
Insurer-friendly evidence
Downloadable history and alert records support risk-management conversations with insurers and underwriters about vacant property cover.
Getting started
Next step: a simple property survey.
We check the building, signal, power and key risk points. You confirm the sensor plan and the final hardware price. We fit the gateway and sensors, then test every alert. Your dashboard goes live and alerts are routed to the contacts you choose.
Monitoring is intended to supplement, not replace, any physical inspection or other condition required by an insurance policy. Final cover terms remain at the insurer's discretion.