Question to the Ministry of Housing, Communities and Local Government:

To ask the Secretary of State for Communities and Local Government, what steps his Department takes to ensure that the sale and installation of narrow-cavity, low-sightline glass-sealed units into heritage windows is compliant with the Construction Products Regulations 2013.

These units are covered by a harmonized European product standard (EN 1279-5) and so the Construction Products Regulation (EU 305/2011) applies to their manufacture, import and distribution. This regulation sets requirements for placing construction products onto the market, not their installation.

Monitoring compliance and enforcement duties fall to trading standards bodies in England, Scotland and Wales and District Councils in Northern Ireland.