Air Tight Testing

Air Tightness Testing is a requirement for all residential new builds. Air tightness testing is undertaken to determine a building's air permeability rating, most commonly in order to demonstrate Part L compliance. Air leakage is a significant cause of heat loss, and is therefore a major contributor to energy inefficiency in buildings. For this reason, Part L of the Building Regulations requires new buildings to meet specific air permeability targets. The test must be undertaken once all elements of the building's envelope are sealed.

BA_Brochure5 475x215.jpg


The Build Aviator service provides Part L compliant air tightness testing and consultancy from leading industry specialists. All of the testing and calculations are provided, but we also provide construtive commentary during testing to assist your build in passing for final sign off from Building Control.


• ATTMA certified testing service
• Includes on-site constructive commentary
• Provides support documents pre-test to support your build
in passing first time
• Competitive and efficient service
• Coverage throughout the UK


Follow the link to request more information Air Tight Testing, for additional information please contact our Self Build team on 0800 032 8968 alternative via email on