We are pleased to be independently certified by or through membership of the following industry bodies:

Gas Safe Register

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. Gas Safe Register replaced CORGI as the gas registration body in Great Britain and Isle of Man on 1 April 2009 and Northern Ireland and Guernsey on 1 April 2010.


CHAS (The Contractors Health and Safety Assessment Scheme) was created by experienced health and safety professionals in 1997 to improve health and safety standards across the UK.​ In partnership with the Association of London Government (ALG)


Constructionline is the UK's largest register for pre-qualified contractors and consultants. In terms of efficiency, time and cost saving and best practice, Constructionline is proven to deliver for public and private sector organisations alike. Our service is recommended by the OGC Common Minimum Standards and The Local Government Task Force.


We are an FGAS Certified company. This qualification is designed to enable refrigeration and air conditioning engineers to meet legal requirements in relation to the qualifications required to work with Fluorinated Greenhouse Gases, otherwise known as F-Gases. The F-Gas Regulations have been put in place by DEFRA to help EU countries meet the Kyoto protocol targets.

Network Rail-RISQS Audited

Argent FM is now qualified by audit on RISQS. Buyers of products and services throughout the GB rail industry use RSSB RISQS as their supplier qualification service

OFTEC Registered

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.

Refcom Certification Limited (Refcom)

Refcom has been running an Elite voluntary best practice company registration scheme since 1994 to promote environmentally responsible refrigerant management. In 2009, Refcom Certification Limited was appointed by the Secretary of State for the Environment, Food and Rural Affairs (DEFRA) to operate a certification body under the stationary equipment provisions of the Fluorinated Greenhouse Gases Regulations.

Building Engineering Services Association (BESA)

The Building Engineering Services Association is the leading trade organisation in the UK representing building engineering services contractors active in the design, installation, commissioning, maintenance, control and management of engineering systems and services in buildings.