How should radon test results be stored when you sell a property? — Property Passport UK guide
Energy & EPC

How should radon test results be stored when you sell a property?

Short-term versus long-term monitoring, remediation certificates, and why buyers ask alongside EPC and survey cues in UK homes.

Published: 18 Apr 2026 · Updated: 18 Apr 2026 · 9 min read

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Geography plus building drive exposure

Radon risk banding exists at regional level. Definitive answers often need in-home tests over adequate periods.

Documents to retain

Laboratory certificates with closed-can protocols where used.

Remedial installation and post works test results.

Maintenance notes for active mitigation fans.

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