AER - Air Tightness Testing Cymru

Mandatory air tightness testing to meet Part L of the UK Building Regulations for new build dwellings.

Air tightness tests on existing dwellings to determine proposed scope and results of retrofit works.

Air tightness tests on existing buildings to improve their EPC rating (via rdSAP).

brown brick house under blue sky during daytime
brown brick house under blue sky during daytime
brown brick house beside green trees during daytime
brown brick house beside green trees during daytime

Covering Ceredigion, Gwynedd, Carmarthenshire and Pembrokeshire. Available to travel further if required.

Ar gael dros Geredigion, Gwynedd, Sir Gaerfyrddin a Sir Benfro.

Gallu trafeilio ymhellach os oes angen.

brown and white concrete building
brown and white concrete building