Air Tightness Testing & Measurement Association


The Air Tightness Testing & Measurement Association is a DCLG-appointed Competent Persons Scheme for air-tightness testing.
The Air Tightness Testing and Measurement Association (ATTMA) is a professional association dedicated to promoting technical excellence and commercial effectiveness in all air tightness testing and air leakage measurement applications. It was formed in 2002 to promote the testing and measurement industry and supports its members by extending market awareness of the technology and the members’ services.

The ATTMA Scheme commences 1 January 2015 and provides a combined scheme covering all parts of the industry. It is open to all those previously registered with BINDT and nearly 200 testers from over 100 firms have so far indicated their interest in joining. Scheme membership will be updated during January 2015 as testers confirm their wish to be part of the scheme and a list of scheme members will appear here as soon as possible.

Prior to 2015 all members of ATTMA had to be accredited by UKAS to ISO/IEC 17025, with a scope covering air tightness testing to ATTMA Technical Standard 1 and BS EN:13829 (2001). This third party accreditation demonstrates the technical competence of ATTMA members in carrying out air tightness testing, including calibration of the equipment used and training of staff carrying out the test. A test report carrying the ATTMA and UKAS logos will therefore be recognisable and technically credible. Members of ATTMA are BINDT Registered to test dwellings (L1A, Section 6 domestic and Technical Booklet F1) and new buildings other than dwellings (L2A & L2B, Section 6 non-domestic and Technical Booklet F2)

Why Choose an ATTMA Member?

All members of ATTMA are independently audited and certified, with a scope covering air tightness testing to the ATTMA Technical Standards (TSL1 &/or TSL2) and BS EN:13829 (2001), demonstrating knowledge and understanding, which enables them to test both commercial and domestic developments in accordance with relevant building regulations.
Reliable. Accurate. Professional. Trusted. Audited. Lodgement.


Individually auditing our members on-site – by visiting every single tester in the scheme (and not batch auditing), we check not just paperwork, but the entire testing process. We see everything including, but not limited to: Quoting, contracting, testing method, report, calibration, condition of the testing kit, quality control measures, the test reporting process and much more. This gives the end user confidence that, in order to get that ATTMA certificate, the above process has been followed.

Auditing in accordance with ISO 19011 – Our auditors are trained to audit in accordance with ISO 19011 and ISO 9001 – promoting a uniform audit no matter who the company are.

Lodgement – Our lodgement system is ever evolving. We have worked with the equipment manufacturers for over a year to implement ATTMA Lodgement – a process of lodging data and allowing a fairer way to fund the scheme as well as the ATTMA uniform certificate which all members produce, making it clear whether or not a test has truly passed.

Technical Support – With a Scheme Manager that has been in the industry for over 9 years, companies that own calibration laboratories, companies that offer the industry training and the largest equipment sellers in the country as members, we can offer unrivaled technical support.

Over 130 member companies and 350 test engineers – The numbers speak for themselves. We are the largest scheme and therefore enjoy the benefits that come with being the largest scheme – Financial stability, a support network and a Trade Association that supports investment and research. We pride ourselves on not being a scheme to just take your money and provide you with a 1 year long ‘license’ to test.

By being part of the ATTMA Scheme, ATTMA members go above and beyond the minimum requirements of the ATTMA scheme.

  • Members

    Percentage of UK companies that are ATTMA Registered

  • UK Testing

    Estimated percentage of UK Testing carried out by ATTMA Members

The ATTMA Team

Who you can call on for support
Barry Cope
ATTMA Scheme Manager
Barry has worked in the air tightness testing industry for 9 years and has tested buildings ranging from Passivhaus to hospitals and football stadiums. Barry has been the Scheme Manager at ATTMA since December 2014 and is a qualified lead auditor.
David Pickavance
Chairman of the ATTMA Board of Directors
David operates as an independent consultant having spent a career developing and managing businesses. David has been part of the air tightness testing industry since before Building Regulations made air tightness testing mandatory

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