We are accredited by the following organisations and accrediting bodies:

Gas Safe Registered

The law requires that only Gas Safe registered engineers should work on gas appliances. Both RJS Heating as a company entity and our team of heating engineers are registered with Gas Safe. Gas Safe registration follows a process of qualification, experience, proven competence and ongoing assessment.


The National Inspection Council for Electrical Installation Contracting is the UK's consumer safety organisation and independent regulatory body for the electrical industry and has been assessing the competence of contractors for over 50 years. It is an indication to our customers that our business is reputable, reliable and works to industry standards together with the assurance that our installation work is covered by an Insurance Backed Warranty or Guarantee of Standards scheme.

Green Deal Approved

RJS Heating is a certified Green Deal Installer. The process of becoming a Green Deal Installer comprises two parts: firstly, an assessment of our management systems and whether we operate processes that support the installation of energy efficiency measures. And secondly, an on-site assessment of installed energy efficiency improvements to demonstrate that we have installed energy efficiency measures safely, to the specification and in compliance with the required building regulations.

PAS 2030

The PAS 2030 certification is designed to improve the energy efficiency of existing buildings and sets the specification for the installation process, process management and service provision. PAS 2030 is designed for installing, managing and providing energy efficiency measures (EEM) in existing buildings. It recommends best practice for managing the installation process and providing services to the customer before, during and after.

Energy Efficiency Accreditation Scheme (EEAS)

The EEAS is the UK's only independent award recognising achievements in reducing energy use by leading organisations in industry, commerce and the public sector.

Worcester Accredited

Worcester, Bosch Group is an award winning manufacturer of high quality boilers and central heating systems. As a Worcester Accredited Installer (WAI), we are regarded by Worcester as reputable, quality-conscious and representing value for money. As a WAI, we have also attended Logic certified training courses on their boilers, solar thermal systems, heat pumps and underfloor heating, and are able to offer extended warranties and guarantees on their heating products.

Vaillant Accredited

Vaillant is an international manufacturer of boilers and heating systems, setting new standards in quality, performance, reliability and efficiency. As a Vaillant accredited installer, we have been trained by Vaillant in their Centres of Excellence to ensure that only the best tradesmen are installing their products.

Our insurance

We have £2,000,000 public liability insurance.

  • Worcester Bosch boilers
  • Vaillant boilers
  • Potterton boilers
  • Ferroli boilers
  • BAXI boilers