Commercial Gas Engineer

Commercial Gas Engineer

Location:

London & Home Counties

Salary: £50,000-£60,000 DOE + Excellent Package

Are you an experienced Gas Engineer looking for a varied role covering both domestic and commercial properties

We are looking for a skilled Commercial Gas Engineer to join a growing mechanical team, covering a portfolio of residential developments, commercial buildings, plant rooms and high-end residential sites across London and the Home Counties.

This is a varied, hands‑on position involving planned preventative maintenance, servicing, fault finding, breakdowns, remedial works, quoted works and installations. You will work independently across a range of domestic and commercial gas and heating systems while maintaining a high standard of workmanship and customer service.

Your responsibilities will include:

• Carrying out PPM, servicing, diagnostics and repairs on domestic and commercial gas systems
• Servicing and maintaining boilers, commercial plant, warm air units, radiant heaters and associated hot water systems
• Carrying out combustion analysis, flue gas analysis and gas safety checks
• Diagnosing faults with boilers, appliances, controls, pumps and associated mechanical plant
• Completing breakdown repairs, component replacements and recommissioning works
• Carrying out remedial works, replacements, upgrades and installations
• Working on commercial boiler plant and larger heating systems
• Completing accurate job sheets, readings, test results, photographs and reports
• Identifying additional remedial works and providing clear technical recommendations
• Liaising professionally with clients, estate managers, residents, concierge teams and other contractors
• Completing all relevant compliance and site documentation

Experience working on wider mechanical systems would be highly beneficial, including:

• Pumps and circulation systems
• Pressurisation units
• Expansion vessels
• Heat exchangers
• Heating and hot water plant
• Unvented cylinders
• Valves, controls and actuators
• Plant room equipment
• Ventilation and associated mechanical services
• Electrical or multi-skilled experience, including basic controls, wiring, BMS interfaces and electrically operated mechanical equipment, would also be advantageous.

The successful candidate will ideally have:

• Current Gas Safe registration with relevant domestic and/or commercial competencies
• Strong experience across domestic and commercial gas systems
• Excellent fault-finding and diagnostic skills
• Experience working on boilers and associated heating and hot water plant
• A full UK driving licence
• Good written and verbal communication skills
  
  The ability to work independently and manage your own workload

The following would be advantageous:

• Commercial Gas qualifications
• Domestic Gas qualifications
• G3 Unvented Hot Water
• Water Regulations / Water Fittings Regulations
• LPG experience
• Oil-fired heating experience
• Electrical qualifications or experience
• Commercial boiler plant experience
• BMS and heating controls experience
• Manufacturer-specific boiler training
• Experience with in PPM or FM contracts

• £45,000-£56,000 DOE
• 25 days' annual leave plus bank holidays
• Fully expensed company van
• Fuel card
• Company phone
• iPad
• Full gas tooling, including analyser and U-gauge
• Nest pension
• 1-in-8 call-out rota
• £150 per week call-out allowance, paid in full
• Door-to-door call-out attendance paid at 1.5x rate, with a minimum of 4 hours paid

This is an excellent opportunity for an experienced Gas Engineer who enjoys a varied role across both domestic and commercial environments, with the opportunity to develop wider mechanical and multi-skilled capabilities