Builders

VertDivider

Air leakage testing

ALT door .jpg Air tightness and energy efficiency are increasingly important aspects of new homes. 

NHBC provides pre-completion air leakage testing for residential and commercial buildings in England and Wales, plus Section 6 (Energy) post-completion testing in Scotland.

We have carried out many thousands of tests for builders of single homes and multi-phase developments alike.

To discuss a quote or book a test, call 0844 633 1000 and say 'air leakage', or complete this Online enquiry form

How we can help you

Air leakage test results are important for regulatory compliance, required by both the energy assessor and building control prior to certification. Choose NHBC for:

  • Immediate results on-site - NHBC technicians can give you an indication of how your homes performed.
  • Expert advice - Experienced staff help you achieve the score you need
  • Nationwide coverage - Our technicians cover all of England and Wales 
  • Efficient process - NHBC share results with NHBC Building Control and the energy assessor for an efficient service.

Additional information

Air leakage testing has been mandatory in England and Wales on a sample of dwellings since 2006, as part of Approved Document L of the Building Regulations. Your building control body will set the testing regime, but in our experience it is typically 10-20% of units on larger sites for Part L 2006.  Part L 2010 increases the amount of testing required. 

  • Section 6 (Energy) requirements for Scotland - testing now needed since 2010

    Air Leakage testing fact sheet  
    Practical guide to airtight dwellings

  • VertDivider

    How to order

    To order or discuss this service:

  • Call 0844 633 1000 and say 'air leakage'
  • Online enquiry form
  • Case studies

      ukas-colour.jpg Our UKAS accreditation reinforces our high standards and technical competence

    Associated services