BESCA, the Building Engineering Services Competence Assessment Ltd was established in 2006 by the Building Engineering Services Association (BESA).

BESCA are proud to be members of the Association of British Certification Bodies (ABCB) which actively promotes nationally accredited certification and works with government departments, trading standards, purchasers and specifiers, UKAS and other stakeholders.

Hawkes refrigeration Engineers have been members of BESCA since 2007 and are proud to be a part of BESA.


BESCA is accredited by UKAS to ISO/IEC 17065:2012 to provide product conformity certification via it’s Competent Person Scheme.

Our accreditation is limited to those activities described on our UKAS schedule of accreditation which is available here.

We offer with confidence

The Installation of a mechanical ventilation or air
conditioning system or associated controls, which does
not involve work on a system shared with parts of the
building occupied separately, in a building other than a
Installation of an air conditioning or ventilation system
in a dwelling, which does not involve work on systems
shared with other dwellings.
DCLG Conditions of Authorisation April 2016
Competent Person Scheme ‘Building Engineering
Services Competence Assessment Limited’ in
accordance with the Building Regulations 2010 (as