Want to learn more about Axion, or speak with a member of our team about your requirements? Please complete the form below and we will get back to you!

Air Tightness Testing

Axion Energy Solutions undertakes air tightness testing and is registered as Competent Persons with the Independent Airtightness Testing Scheme (IATS). We are registered as Level 1 Air Tightness Testers.

The purpose of this service is to satisfy the current Building Regulations (Part L) - Conservation of Fuel and Power.  These tests are compulsory for all new buildings.

Our Level 1 registration allows us to undertake air tightness testing for single dwellings and other small simple buildings up to 4,000 m3.

As a special offer we can also provide a combined SAP calculation & Air Tightness Test package. Contact us to discuss your needs:


Why you need air tightness testing

Air leakage is the uncontrolled air loss (air infiltration) from a building through cracks and holes. If the air loss is too high then a building will be draughty, uncomfortable to live in and will have high heating bills. The building is pressure tested to ensure that it has been constructed to a good standard and that it can achieve the pass score which has been calculated in the SAP calculation. The test is a means of quantifying how much air leaks into or out of the building.

Achieving a good standard of air tightness results in lower energy bills and a building which is comfortable for the occupants.