UK Certification Ltd is a UKAS accredited certification body offering assessment and certification for the Gas, Oil, Water and Electrical trades. We offer a wide range of assessments covering (for gas) domestic, commercial, catering, ESP and LPG; (for Oil). A range of OFTEC assessments. Unvented Domestic Hot Water Systems, Water Regulations; Legionella and (for Electrical) the CORGI ECS Defined Scope. Tailor made (non accredited) on site assessments are also available.