Mobile Building Services Engineer

• 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:

• Electrical: 3 years (required)

Licence/Certification:

• Driving Licence (required)
• Electrical qualifications (required)

Work authorisation:

• United Kingdom (required)

Work Location: On the road