Air Tightness Testing
Surveys
Air tightness testing helps identify where warm air is escaping and cold draughts are creeping in – giving you the insights needed to improve energy performance and occupant comfort.
Required under PAS 2035 for certain projects, the test pinpoints leaks in the building fabric that compromise efficiency. At Domna, we deliver fast, accurate testing using calibrated equipment and expert analysis.
The results support smarter retrofit planning, help meet regulatory standards, and ensure your upgrades deliver measurable impact.
Air tightness testing gives you the data you need to reduce heat loss, improve comfort, and ensure your retrofit measures perform as intended – all while supporting compliance and long-term energy savings.
Air tightness testing involves a blower door test that measures the rate of air leakage in and out of a building. At Domna, we carry out a full test using calibrated equipment to pressurise the property and identify uncontrolled air pathways.
Our service includes a pre-test inspection, the air permeability test itself, and a detailed report highlighting leakage points and compliance with regulatory standards. We also provide expert advice on remedial actions where needed – helping you improve performance before or after retrofit works.
Whether you’re meeting PAS 2035 requirements or aiming for higher energy standards, our testing gives you the clear data and guidance needed to improve building fabric and reduce energy loss.
With 900kt of CO2 saved and 50 institutional landlords served it is little wonder why business choose Domna
