Our Accreditation

Domestic & General Heating is considered among the top boiler installers within the UK with a decade long experience in this field. Our accreditations exhibit our commitment and qualification as a nationwide energy saving specialist.

Our accreditations exhibit our commitment and qualification as a nationwide energy saving specialist. Approved Green Deal Provider Number: GDPA540 Domestic & General Heating Ltd is able to provide Green Deal Finance and ECO Funding. Domestic & General Heating offers Green Deal Plans for Domestic and Business properties throughout England & Wales. We as the Green Deal providers are also registered to offer Green Deal Cash back.

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Approved Green Deal Advice Service (GDAS) Reg No: STRA10187 Domestic & General Heating Ltd is approved as a Green Deal Advice Organisation for the domestic sector in accordance with the requirements of DECC Specification for organisations providing Green Deal Advice Services (Version 003/ 2012). Domestic & General Heating Ltd has a nationwide network of highly qualified Green Deal Assessors for all types of properties.

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Approved Green Deal Installer Number - NICI00234 Domestic & General Heating Ltd has been assessed as competent to install the following Green Deal measures in accordance with the requirements of PAS 2030:2012 Edition 2.*Approved Measures Include:

  • Condensing boilers, natural gas-fired and liquefied petroleum gas-fired (domestic and non-domestic)
  • Condensing boilers, oil-fired (domestic and non-domestic)
  • Flue-gas recovery devices
  • Heating system insulation
  • Heating controls, hot water, Air Conditioning and Ventilation System Controls
  • Under-floor heating
  • Warm-air heating systems (domestic and non-domestic)
  • Cavity wall insulation
  • External wall insulation
  • Internal wall insulation
  • Loft insulation
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Gas Safe Registered

Gas Safe Registered Domestic & General Heating takes gas safety very sseriously. All of our engineers are Gas Safe Registered. Gas Safe Register is the official gas safety organisation in Great Britain. It replaced CORGI on 1st April 2009. Gas Safe Register is responsible for the registration and regulation of gas engineers. Membership is mandatory for any company or engineer working with gas appliances.

Real Renewable Energy Assurance Limited

The REAL Assurance Scheme was set up by the Renewable Energy Association, an organisation which represents renewable energy producers and promotes the use of all forms of renewable energy in the UK. REAL Assurance aims to guarantee a high quality experience for consumers wishing to buy or lease small-scale energy generation systems for their homes. REAL membership is a sign that the supplier has agreed to abide by the high standards as set out in the REAL Consumer Code. The REAL logo is a symbol of professional excellence. The code stipulates that customers have the right to expect that goods and services supplied by a business will perform properly, be fit for their purpose and meet high standards. As well as a consumer code for companies, REAL also produces a guide for consumers. This document acts as an introduction to why and how you may want to produce your own energy in your home.


We are proud to be NICEIC. For our customers this means they can be assured of high quality, professional workmanship that meets regulated Government endorsed standards. What does NICEIC accredited mean for alpha-vae's customers? Domestic & General Heating has achieved NICEIC accreditations as a domestic installer and approved contractor. NICEIC is the electrical contracting industry's independent voluntary body for electrical installations throughout the UK. They offer industry-leading certification services, Building Regulations Schemes, products and support to electrical contractors and many other trades within the construction industry. For more information about NICEIC please go to www.niceic.org.uk.

Energy Saving Trust

The Energy Saving Trust was setup by Government as a non-profit company to deliver the substantial government-funded programmes. They are independent and continue to provide communities and households with impartial advice. For more details please visit the Energy Saving Trust website.


The MCS is an internationally recognised quality assurance scheme which demonstrates to customers that your company is committed to meeting rigorous and tested standards. It was designed with input from installer and product representatives. Similar to the Gas Safe Register, the MCS gives you a mark of competency and demonstrates to your customers that you can install to the highest quality every time. For more details about the MCS scheme, visit the MCS website

Benchmark Certification Limited

All of Benchmark's businesses have been inspected by an industry experienced Benchmark assessor for MCS Certification and are members of the government scheme for Renewables or Competent businesses. So, no need to worry about dubious customer references and rating systems.

UVDB Registered

General &Domestic Heating Ltd is registered with the Achilles (UVDB) who verify, assess health and safety environmental and quality capabilities for a wide range of Utility Companies and their Contracting Partners.

Worcester Accredited Installers

Worcester Accredited Installers (WAIs) are accredited to install Worcester boiler ensuring, a service that meets the highest standards. Whilst we are not directly employed by Worcester Bosch, they do promote us as an accredited installer. The goal of this accreditation scheme is to help reassure customers that they will receive a good quality service from a trusted installer. As an accredited installer, Worcester Bosch make sure that we have the relevant Gas Safe, OFTEC and/or MCS approval. We are also required to attend training course that give us specialist knowledge about the Worcester Bosh boilers we install. For more information visit the Worcester Bosch Group site

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