The Civil Aviation Authority (CAA) is the specialist aviation regulator for the UK and is responsible for air safety, economic and airspace regulation, consumer protection, environmental research and consultancy.

Inviron provide an efficient and well-planned maintenance programme at CAA House in Central London and Aviation House, Gatwick, undertaking planned preventative and reactive maintenance of the mechanical and electrical systems, including lifts, water treatment, fire alarms, building management systems, heating, ventilation and air conditioning units.

In addition, Inviron also manage and co-ordinate maintenance work carried out via approved sub-contractors, along with building fabric work and ad-hoc tasks at the CAA's regional offices spread throughout the UK.