The Installation Assurance Authority provides assurance, compliance and technical support across insulation and related retrofit work. Its framework covers consumer protection, certification, surveillance, monitoring, guidance, training and installer standards.


Supporting work that is checked, monitored and completed to agreed standards
Bringing insight into practical delivery and workmanship
Helping build confidence for households and funders
Supporting better understanding across insulation and retrofit measures

IAA works to improve confidence in retrofit installation through assurance, technical guidance and compliance processes.
Its involvement helps NRH connect quality conversations with what happens on site.