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What role does light play in a healthy home?

20/03/2026

Ian McCreeth,  

Anglo Nordic

Damp and mould enforcement has placed environmental control under greater scrutiny. Thermal comfort and ventilation are now governed, monitored and documented. But light remains largely absent from these conversations, despite its influence on health outcomes and resident experience.

This reflects a structural challenge. Natural light cannot be retrofitted and to date artificial light has been treated as a commodity rather than a health determinant. And while technological innovation now offers lighting systems capable of supporting wellbeing, including significant reductions in bacteria and virus transmission, these systems introduce the same integration and maintenance risks seen elsewhere in environmental control.

From our perspective light should be treated as essential infrastructure, specified and maintained with the same discipline that is applied to heating, water and ventilation. Where it is not, health outcomes and operational resilience can be compromised.

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