* *Post Title:* Mobile Building Services Engineer (Commercial Gas Bias)
* *Hours:* 8am – 5pm
* *Contract:* Permanent
* *Location:* 99% within M25
* *Head Office:* Bishop’s Stortford
* *Call-out Rota:* 1 week in 7
* *Overtime:* Time and a half or double time, plus £150 standby allowance
* *Reporting to:* Operations Manager

*About DMG Delta*

DMG Delta is a leading provider of building services, supporting a wide range of commercial and residential sites. We take pride in delivering high-quality, reliable services, and our engineering team is at the heart of this commitment.

We are seeking a *Mobile Building Services Engineer (Commercial Gas Bias)* to join our growing team. This is a key role within our service delivery and operations team, responsible for maintaining and improving mechanical and gas systems across client sites.

*Why Work With Us?*

We know that a great package is more than just pay. At DMG Delta, you’ll benefit from:

* 25 days annual leave + 8 bank holidays
* Generous sick pay and accident insurance
* Loyalty bonus after 2 years’ service
* Life assurance (2x salary)
* Private GP access and 24/7 counselling via EAP
* Annual eye care reimbursement
* Reward & recognition schemes (Employee of the Quarter, Manager incentives)
* Training Academy and mentor programme for ongoing development
* Tech Desk support to help you in the field
* Company events

*The Role*

As a Mobile Building Services Engineer, you will:

Lead on gas and mechanical maintenance, fault resolution, and compliance across commercial client sites.

* Carry out PPMs and reactive works on boilers, plant rooms, and associated systems.
* Attend multiple sites as directed by the Service Desk to meet operational needs.
* Support wider building services, including basic electrical, plumbing, or HVAC tasks as required.
* Respond to breakdowns and emergencies promptly and safely.
* Maintain accurate documentation, including gas safety records and service reports.
* Provide professional client updates and technical advice on site.
* Follow and champion all health and safety practices and gas safety regulations.
* Continuously develop your skills and keep up to date with new technologies and standards.

This is a mobile role requiring flexibility, including potential work outside standard hours to ensure essential services remain operational.

*Key Responsibilities*

* Planned, reactive, and statutory maintenance on commercial boilers, heating systems, pumps, valves, and associated plant.
* Fault diagnosis, isolation, and repair of gas and mechanical issues.
* Testing, purging, and commissioning in line with Gas Safe requirements.
* Support installation works, upgrades, and plant refurbishments.
* Complete all service and safety certification accurately.
* Assist with multi-skilled support when required (electrical, HVAC, plumbing).
* Attend and resolve mechanical or gas emergencies promptly.

*Essential Qualifications:*

* Commercial Gas qualifications (COCN1, CODNCO1, CIGA1, CORT1, ICPN1, TPCP1A or equivalent)
* NVQ Level 3 in Mechanical Engineering or equivalent experience
* Full UK driving licence
* Eligibility to work in the UK

*Desirable Qualifications:*

* Domestic gas (CCN1)
* F-Gas or HVAC awareness
* Electrical qualification (18th Edition or similar)
* IPAF / PASMA

*Experience:*

* Proven experience in commercial gas maintenance and HVAC plant operations
* Competence in fault finding, repair, and commissioning of commercial gas systems
* Experience with both planned maintenance and reactive callouts
* Desirable: mobile role experience, multi-discipline building services background

*Skills & Abilities:*

* Strong diagnostic and problem-solving skills
* Ability to read mechanical drawings and plant schematics
* Clear communication and reporting skills
* IT literate for mobile devices and job management software
* Ability to work independently and collaboratively

*Personal Attributes:*

* Reliable, committed to high-quality workmanship
* Adaptable and flexible
* Strong customer focus and professional approach
* Team player with a collaborative mindset

*Physical Requirements:*

* Physically fit for lifting, working at height, and confined spaces
* Willingness to travel across multiple sites and participate in on-call rota

*Health & Safety:*

* Strong awareness of gas safety and compliance standards
* Commitment to safe working practices
* Proactive in hazard identification and risk management

*To Apply*

If you are a qualified, motivated, and flexible commercial gas engineer looking to progress your career in building services, we want to hear from you.

Job Types: Full-time, Permanent

Pay: £48,000.00-£55,000.00 per year

Benefits:
* Company events
* Company pension
* Employee mentoring programme
* Health & wellbeing programme
* Life insurance
* On-site parking
* Referral programme
* Sick pay

Experience:
* Commercial gas: 3 years (required)

Licence/Certification:
* Driving Licence (required)
* COCN1 Commerical Gas Safety (required)

Work authorisation:
* United Kingdom (required)

Work Location: On the road

DMG Delta Ltd

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Mobile Commercial Gas Engineer