Smoke Shaft Testing

Air Tightness in Smoke Shafts

Established for 20 years, Air Leakage Testing has the expertise to confirm air tightness in smoke shafts for Automatic Opening Ventilation (AOV).

The suppliers and installers of AOV require a prescribed level of air tightness to ensure that these life-saving devices operate as intended.

As specialists in this field, we can provide air leakage testing to prove the shaft will work when called upon.

Air Leakage Testing is registered with the Air Tightness Testing Measurement Association (ATTMA). With decades of experience, we are equipped to minimise disruption and provide a cost-efficient service.


Need a quick turnaround?

The lead test engineer will guide you through the process. They will explain initial preparations and provide clear explanations about what to expect during the test.


When air leakage rates below 3.8m² are confirmed, we issue next day certification. You then have peace of mind that in the case of fire, the shaft will perform as intended, drawing smoke out of the building.

Need Technical Advice on Smoke Shaft Testing?

Our test engineers are based across the South East so are conveniently located to work with builders across the Home Counties and London.


We are a Constructionline Gold company offering specialist services at competitive rates. Give us a call and we can arrange a date for smoke shaft testing today.

What if a Smoke Shaft Fails an Air Tightness Test?

If a smoke shaft fails to meet the necessary air tightness levels our test engineers will use air and smoke to identify the leakage paths and explain the issues.


With our expertise, it is possible to identify solutions that can be addressed ahead of re-testing.

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01799 540220

Enquire about Smoke Shaft Testing

Air Leakage Testing Limited

Essex Office (Eastern Counties): 01799 540220
Bucks Office (Western Counties): 01296 791079


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