Free Online Tools vs Paid Certified Reports
When checking radon in the UK, homeowners have three distinct tiers of data available:
1. Free Postcode / 1km Grid Check (Free): Interactive web viewers from UKHSA, BGS, and our platform. Shows the general probability band (<1% up to >30%) for your neighbourhood. Excellent for quick property diligence.
2. Address-Specific Online Search (£3.60): The official UKradon portal operated by UKHSA. Uses exact Ordnance Survey address coordinates and sub-surface GIS layers to provide a formal downloadable certificate confirming whether a specific building requires radon protection.
3. Physical Home Measurement Kit (£50–£60): The only method that measures actual indoor air. Two small black plastic detectors (containing CR-39 plastic film) are placed in the main living room and primary bedroom for 90 days, then mailed in a pre-paid envelope to an accredited laboratory.
| Source / Tool | Cost | Accuracy / Resolution | Suitable For |
|---|---|---|---|
| Free Postcode Checker (UKHSA / Ours) | £0.00 (Free) | 1km square statistical probability band | Initial screening / house hunters |
| UKradon Address Search (UKHSA) | £3.60 inc VAT | Building-specific GIS coordinate check | Official conveyancing compliance record |
| 90-Day Passive Track-Etch Kit | £50.00 – £60.00 | Exact Bq/m³ physical measurement of indoor air | Homeowners / definitive health assessment |
| Digital Electronic Radon Monitor | £120.00 – £250.00 | Real-time continuous digital Bq/m³ display | Continuous monitoring / post-remediation check |
How to Run a Free Radon Check in 30 Seconds
Follow these steps to check any England, Scotland, or Wales property: