Air Leakage Testing & Airtightness Certificates
Professional blower door testing for Building Regulations Part L compliance. Fast results, nationwide coverage.
Airtightness Testing for Irish Buildings
Air leakage testing (blower door testing) measures how airtight a building is. Using calibrated fan equipment, we pressurize or depressurize your building and measure the air flow required to maintain a pressure difference.
Results are expressed as air permeability (m³/hr/m² at 50 Pa). Building Regulations TGD Part L requires new dwellings to achieve maximum air permeability of 7 m³/hr/m²—better airtightness improves energy efficiency and BER ratings.
Our Air Testing Services
- Blower door pressure testing
- Air permeability measurement
- Building regulations compliance
- Thermal imaging available
- Leak detection and location
- Pre-completion and final testing
Benefits of Good Airtightness
- Building control compliance
- Improved energy efficiency
- Enhanced comfort levels
- Reduced heating costs
- Better BER ratings
Pre-Test Preparation
Proper preparation before testing helps achieve the best results. We'll advise on building preparation requirements when you book.
Read our preparation guideAir Testing Process
Pre-Test Preparation
We advise on building preparation requirements before testing.
Equipment Setup
Blower door equipment is installed and calibrated.
Pressure Testing
Building is pressurised/depressurised to measure air leakage.
Results & Certificate
Air permeability results and compliance certificate provided.
Air Leakage Testing FAQs
Air leakage testing (blower door testing) measures how airtight a building is by pressurising or depressurising it and measuring the air flow required to maintain the pressure difference. Results are expressed as air permeability (m³/hr/m²).
Building Regulations TGD Part L requires maximum air permeability of 7 m³/hr/m² at 50 Pa for new dwellings. Better airtightness improves energy efficiency and BER ratings.
Need an Air Leakage Test?
Contact us to schedule your testing.