We currently provide services and support to companies and individuals in Humberside, East Yorkshire, North Lincolnshire, North East Lincolnshire, South Yorkshire, West Yorkshire, Teeside, London, Portsmouth, Plymouth, Southampton, Hampshire, Oxfordshire and Wales.

Non-Domestic / Commercial Gas Training

This course is designed to enable the student to carry out work on non-domestic gas installations in a safe and competent manner.

On successful completion of the Non-Domestic / Commercial Gas course delegates will be able to:
  • State the requirements of the GAS SAFE Regulations
  • Determine the non-domestic / commercial pipework is installed in accordance with the current codes of practice
  • Explain the principles of the combustion process
  • Recognise the components of gas burners and state their function
  • STate ventilation requirements for non-domestic / commercial gas appliances
  • Identify types of flue systems for non-domestic / commercial gas appliances
  • Recognise components of the gas system and understand their operation
  • Carry out soundness testing on non-domestic / commercial gas installation to the current code of practice
  • Carry out purging of non-domestic / commercial gas installations to the current code of practice.
    Course Content
  • Gas Safety Regulations
  • Large pipework installation
  • Combustion and its control
  • Flues and Ventilation
  • Soundness testing
  • Purging procedures
  • Appliance commissioning
    The options available to are:
  • Core Commercial Gas Safety (COCN1)
  • Changeover from Domestic to Commercial Gas Safety (CODNCO1)
  • Gas Fired Commercial Overhead Radiant / Plaque Heaters (CORT1)
  • Installation First Fix of Commercial Appliances (ICAE1)
  • Installation of Commercial Pipework - 1st Fix in excess of 28mm (ICPN1)
  • Indirect Fired Commercial Appliances (CIGA1)
  • Testing and Purging Installation Pipework (TPCP1)
  • Testing and Purging Installation Pipework (TPCP1A)
    Successful completion of the assessment leads to a ERS Nationally recognised certificate and encapsulated card, allowing the individual to register with GAS SAFE.
    Next stop…..
    CCN1 Assessment or New Entrants into the Gas Industry

    Our Website

    This website explains how we approach, develop and implement activities and why we are recognised for our free flowing, informative delivery, bringing information alive by adopting a specialist approach for organisations. Select from the top to access our range of management courses, electrical courses, plumbing courses, air-conditioning and refrigeration courses, f-gas regulations course, ACS gas domestic, commercial & new entrants training & assessment and NEBOSH general certificate and various health & safety courses.



    LPG Dates


    Training: 5th & 6th June 2023

    Assessments: 7th June 2023


    Training: 7th & 8th August 2023

    Assessments: 9th August 2023


    Training: 9th & 10th October 2023

    Assessments: 11th October 2023


    Training: 13th & 14th November 2023

    Assessments: 15th November 2023


    Training: 11th & 12th December 2023

    Assessments: 13th December 2023


    Non Domestic Gas Training & Assessments


    Training: 19th & 20th June 2023

    Assessments: 21st, 22nd & 23rd June 2023

















    Head Office:

    Crownship Developments Ltd,

    Charlton House Mews,

    Bridge Street, Brigg,

    North Lincolnshire,

    DN20 8NQ


    Technical Centre:

    Crownship Technical,

    Unit 13,

    Temple Street Unit Factory Estate,

    Station Drive,


    HU5 1AD


    Telephone Number: 01652 658151




    Valid XHTML 1.0 Transitional Valid CSS!

    Recent Testimonials

    Here is some of our satisfied customers.