Air tightness testing – dwellings

Air tightness testing – dwellings

Approved document L1A confirms that requirement for air tightness testing for at least a percentage of all new dwellings, most developers opt to test 100%.

Since most testing is required very near to completion/handover , time is of the essence. Our support staff work very closely with our clients’ site management teams to remove the risk of costly delays.
A result is available immediately after the test is carried out and certificates can be issued within 24 hours.

Testing is carried out to ATTMA (Air Tightness Testing & Measuring Association) Technical Standard TSL1 and we are UKAS accredited for this service.

We also provide ventilation flow rates in accordance with Approved Document F.

Contact us at to book your test.