Smoke Shaft Testing Services

Smoke Shaft Testing Services

Introducing Smoke Shaft Testing

Smoke shafts systems are commonly installed as part of a fire-engineered approach to safety in high rise buildings. Smoke shafts are an important element of a smoke control system; therefore, the air tightness performance of the shaft is paramount, so the smoke shaft/s need to pass an air test.

If the smoke shaft doesn’t meet the air tightness target (usually 3.8m3/hr/m2) it can have a negative impact to the overall system and cannot be signed off by the fire system contractor and/or Building Control.

Smoke shafts come in all heights; however, the floor print of the shaft is usually stays the same, approx. 1m x 1.5m. heights however can range from 2 stories to over 20 stories.

Diagnostic Smoke Shaft Test Service
We have a massive amount of experience testing all sizes of smoke shafts, we also offer a diagnostic service where the shaft has failed the smoke shaft air test using both smoke testing and thermal imaging to identify air leakage paths within the smoke shaft envelope. On previous projects where the smoke shaft has failed with massive amounts of air leakage, we have used smoke testing and thermal imagining to identify air leakage paths within the envelope of the smoke shaft.

The findings our smoke shaft surveys are collated into a detailed air leakage report, which then allows the client to undertake targeted remedial sealing works resulting in a test pass during the following visit.

Also, Air Pressure Testing is one of the few companies that is both UKAS and ATTMA Level 2 accredited for undertaking air tightness testing to buildings, as well as specialising in smoke shaft air testing. If you would like more information on our smoke shaft (AOV) testing and/or you would like to download our smoke shaft checklist, please contact us at:

Here at APT we have been undertaking AOV smoke shaft testing throughout London and the South-East, on many prestigious projects such as Battersea Power Station, The Imperial War Museum and Claridges and Berkeley Hotel.

What can we do to help you pass your test ?

>>> Smoke shaft survey visits
>>> A UKAS and ATTMA Level 2 testing company
>>> Smoke shaft air test certification
>>> The latest high-powered fan equipment
>>> UKAS calibrated equipment
>>> Smoke testing in the event of an air test failure
>>> Thermal Imaging in the event of an air test failure
>>> Same day quotation
>>> Experienced test engineers
>>> Thousands of air pressure tests undertaken
>>> Fantastic customer satisfaction score

Smoke Shaft Testing Services

Our experienced engineers at Air Pressure Testing have over 10 years in the field of smoke shaft testing, so we know how to help clients to pass their testing and achieve smoke shaft signoff.

For more information on our smoke shaft test services, please contact APT on 07775 623464, or email us at

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