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Commercial Air Pressure Testing

Commercial Air Pressure Testing is required for all new build dwellings in line with Part L2A Building Regulations (England & Wales) to make sure the building meets or exceeds the air permeability rating specified in the design stage SBEM Calculations.

We provide same-day certificates and our expert team of ATTMA accredited technicians offer free support and advice on all jobs.

What is An Air Pressure test?

Air leakage can cause you to lose up to 30% of a dwelling’s heat, making the building less energy efficient and more expensive to run.

After looking at drawings and ensuring the building is suitably sealed, our technicians will temporarily fit a fan into a doorway to calculate the air flow within the building under different pressures. This will reveal the air leakage rate and determine how energy efficient your building is.

L1 Testing support you the entire way – from the booking to the execution of your Commercial Air Pressure Test. We provide same-day pass certificates upon successful completion so that you can get your building signed off in a timely and stress-free manner.

“Good Job”

L1 Testing carried out a commercial air test for us. Mikey was efficient and the test was a lot quicker than I expected and was a good, all round service.
Cosmur Construction

Top Tips to achieve compliance

Top Tip #1

Ensure all penetrations (including plumping, electrics & floorboards)  are suitably sealed to prevent air leakage out of the main frame of the building

Top Tip #2

Contractors are allowed on site during Commercial Air Testing, but it is important to ensure that no external doors, shutters or windows are opened at any point during the testing process.

Top Tip #3

Take a look at our technicians in action and see what an Air Pressure Test consists of. We are always here to help if you have any questions!

Play Video

We Can Help!

We will guide you through the entire process. Free advice and support is included in our service to make sure that your project passes.

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