Air Leakage Testing Ltd is one of the longest established air tightness testing organisations in the UK. The company is UKAS accredited to ISO 17025 for testing services as well as being registered with the Air Tightness Testing and Measurement Association (ATTMA) for Level 1 and Level 2 testing. The primary services of the company, include: Air tightness testing to ATTMA TS L1 for new dwellings to meet the requirements of Approved Document Part L1 of the Building Regulations Air tightness testing to ATTMA TS L2 for new buildings other than dwellings to meet the requirements of Approved Document Part L1 of the Building Regulations Sound insulation testing to ISO 140-4 and ISO 140-7 for new and existing residential properties to meet the requirements of Approved Document Part E of the Building Regulations We operate across the UK but the majority of our work is conducted in the South East of England with bases in and around the M25.