Air Tightness Testing
Air Tightness Testing
Air tightness testing (also known as blower door testing) is essential for measuring how much air escapes from a building.
It’s a legal requirement for new dwellings under Ireland’s Building Regulations Part L and plays a key role in achieving NZEB (Nearly Zero Energy Building) standards.
It’s a legal requirement for new dwellings under Ireland’s Building Regulations Part L and plays a key role in achieving NZEB (Nearly Zero Energy Building) standards.
At Kenergy Consultants, we provide certified air tightness tests for residential and commercial properties across Ireland.

Why Air Tightness Matters
- Improves energy efficiency and BER ratings
- Reduces heating costs and carbon emissions
- Required for Building Control and SEAI grants
- Supports comfort and indoor air quality
Who Needs It?
- New builds and extensions
- Retrofit projects applying for SEAI grants
- Developers and self-builders
- Commercial and office developments
How It Works
- Preparation – We’ll advise you on how to get the building ready for testing
- On-Site Test – Using a calibrated blower door fan, we pressurise the building to detect air leakage
- Leak Detection – If required, we help locate and identify problem areas
- Certificate & Report – You receive a certified test result for submission to Building Control
Why Choose Kenergy?
- NSAI-Calibrated Equipment
- Experienced, Certified Testers
- Fast Scheduling and Turnaround
- Detailed, Building Control-Approved Reports
- Nationwide Coverage
Book Your Test
Ready to schedule an air tightness test? Contact us today for a quote or to arrange a site visit.