The United Kingdom Accreditation Service is the sole national accreditation body recognised by the British government to assess the competence of organisations that provide certification, testing, inspection and calibration services. Click here for our certificate.

Interface NRM ISO 9001 – 2015 Quality Management System – 8357.

Gas Safe Register is the official gas registration body for the United Kingdom, Isle of Man and Guernsey, appointed by the relevant Health and Safety Authority for each area. By law all gas engineers must be on the Gas Safe Register. Click here for our certificate.
Gas Safe (Commercial Gas installation and Use) – 137520

NICEIC is UK’s leading voluntary regulatory body for the electrical contracting industry. Click here for our certificate.
NIC-EIC (Electrical Installations and Testing) – 036001

The UK’s leading accreditation scheme for contractors, and stay on top of ever-changing risk management standards. Click here for our certificate.

OFTEC establishes the standards for competence within the domestic oil heating and cooking industry. By ensuring the quality of people and businesses working in this area, OFTEC maintains standards for reputable companies and consumers alike. Click here for our certificate.  Oftec C10733

Safecontractor is the health and safety accreditation assessment scheme and is designed to review and audit the health and safety policies, procedures and documentation of contractors. Click here for our certificate.
Safe Contractor (Health & Safety) – HH2269.

Building Engineering Services Association is the UK’s leading professional body for building engineering services contractors.
BESA members are subject to regular, third-party competence and assessment to ensure their technical and commercial competence. Click here for our certificate.
Building Engineering Services Association – F534200/HV009708.

Constructionline is the UK’s largest online register for pre-qualified contractors and consultants. Constructionline is proven to deliver for public and private sector organisations alike. Click here for our certificate.
Constructionline (Health & Safety, Environmental, Diversity) – 131855

NEBOSH (The National Examination Board in Occupational Safety and Health) offers a comprehensive range of globally recognised, qualifications designed to meet the health, safety and environmental management needs of all places of work. Click here for our certificate.
NEBOSH (Health & Safety, Regulations & Processes) – NGC3/00124657/342508

The Environment Agency has a two-tier registration programme for waste carriers and brokers that can handle controlled waste.  Click here for our certificate.

CEM offers installation, commissioning and repair as an Alfa Laval authorized service partner.

For further information email

CEM is an accredited Alfa Laval authorized distributor. For further information email

CEM offers installation, commissioning and repair as an Cetetherm authorized distributor

ISO 14001 is the international standard that specifies requirements for an effective environmental management system.

Click here for our certificate.

UKAS ISO 14001:2015, 8357

Citation are retained by CEM to handle all their H&S compliance. All their Health & Safety consultants are either qualified members of the Institution of Occupational Safety and Health (IOSH) or the International Institute of Risk and Safety Management (IIRSM). Click here for our certificate.