Stop heat and energy escaping from your development.

Meeting the Building Regulations standards efficiently and cost effectively requires acute attention to detail in every area of the assessment. As a major contributor to heat loss within a building, air leakage through Air Testing must be measured, identified and controlled to ensure compliance.

Approved Document Part L1A of the Building Regulation stipulates that a new dwelling should achieve a test result of 10m3/hr2 or lower. The target that you need to meet is set by your SAP assessment, but generally is around 4 – 6, depending upon your ventilation system.

Accuracy and timeliness go hand in hand when it comes to air tightness testing and, where necessary, these results can be issued, uploaded and lodged with ATTMA the same day as the test.

Air Testing is carried out by our UKAS-accredited, BINDT registered ATTMA assessors (Air Tightness Testing and Measurement Association).

Our Air testers are also qualified to carry out Domestic Ventilation Testing. This can be carried out on the same visit as the air testing negating the need for a separate visit and helps reduce time and costs to the developer.

For more information on air testing or to book an air test get in touch.

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  • Know Your DAP

    Ensure you know what target DAP has been set by your SAP Assessor and ensure your construction team know as well.

  • Build Complete

    Make sure your construction team prepare the dwelling for an air test, all penetrations through and sealed.

  • Air Test

    Pass on the target to your Air Tester, carry out the test and hit your DAP.

  • Prepare EPC

    Give the results and the air test certificate to your SAP assessor so that they can produce the EPC.

Are you ready to carry out an Air Test ?

  • SAPs completed – Target DAP known for the air test
  • Mastic sealant to doors, windows, skirting and all service penetrations
  • Loft hatch fitted and sealed
  • Internal and external doors hung and openable
  • Skirtings, sockets/light fittings and switches installed
  • All down lighters in place and fixed back to ceiling
  • Kitchens and bathroom units fitted
  • Windows fitted, openable and gaskets in place
  • All sanitaryware traps filled with water
  • Trickle vents and other passive ventilation fitted

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