The Vex is a battery-powered sensor that reads the conditions mould needs to grow, warning landlords weeks before it ever appears and keeping their properties compliant with UK housing law.
Inspections run every 6 to 12 months. By the time mould is visible, the health impact, the property damage and the liability are already done.
UK homes are affected by damp or mould, over 9 million rental properties.
Awaab's Law gives social landlords 10 working days to investigate, and 5 to fix.
The cost jump from a £200 early fix to £2k to £10k+ crisis remediation.
Every 20 minutes, each Vex captures temperature, humidity and gas, the signals that precede mould.
A proprietary algorithm turns readings into a live, room-level mould-risk score that sharpens over time.
Tenants get guidance in-app. Landlords see rising-risk units on one dashboard, with timestamped evidence that keeps them compliant with the law and clear of heavy fines.
Won to develop and prototype the Vex device.
Invited to Y Combinator's 2026 Startup School cohort.
Conversations underway with property owners, managers, researchers and lawyers.
Built around UK mould law, so landlords stay compliant and avoid heavy fines.
Global market.
UK social and private properties.
Achievable capture in early years.
Hardware, with SaaS margins on top.
We're raising to put Vex into its first thousand homes. If that's a future you want in on, book a slot.