Air Testing Yorkshire

Before your construction project is complete, it’s essential to conduct an air tightness test to ensure that your building(s) comply with Part L1 and Part L2 of the Building Regulations. This ensures that your property is free from draughts, and well insulated to boost its energy efficiency.

NATTS provides independent air tightness testing in Yorkshire, delivering a fast and efficient service to builders, architects, property developers and self-builders. In doing so, we give you peace of mind that your property is warm, secure and energy efficient.


At NATTS, we know that meeting stringent legal requirements can be a headache when working on a commercial or domestic building project. That’s why we provide expert advice and a fuss-free air tightness testing service. We’ll provide guidance in the early stages of the build to help you prevent air leakage, and conduct a pre-test survey to ensure that your property passes first time.

By going the extra mile to help our clients, we’ve gained a fantastic reputation for air tightness testing in Yorkshire and beyond.


During the testing stages, we take extra care to measure environmental factors and conditions that can affect the results, such as wind speed. Our experienced engineers will conduct a thorough inspection of the property, and prepare your building for the test itself.

We’ll seal off any vents and traps, and carefully place the pressure monitoring tubes around the building, using only the best air tightness test equipment to ensure accurate, clear results.

If your property passes the test, you’ll be given certification for your records. We’ll provide the documentation on the day, so that you can prove your property meets legal air tightness requirements, and proceed with the final stages of your construction project.

Need advice on air tightness testing in Yorkshire or beyond? Or want to arrange a test for your property? Contact us to speak to one of our advisers.