Technical Estimator

DMG Delta – Bishop’s Stortford

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.

Are you looking for a rewarding career with a well-established company that truly values its employees? At DMG, we’re passionate about supporting our team and providing opportunities to grow.

About the Role:

We are seeking a highly organised, detail-focused Technical Estimator to join our Technical Support team. This is a key role within the business, supporting the pricing, planning, and delivery of reactive maintenance works and light commercial jobs across multiple trades.

You will be responsible for producing accurate and timely quotations based on engineer’s surveys, client requests, and project information, while working closely with operations, suppliers, subcontractors, and our sister company within the Group. The role requires someone confident in managing multiple workstreams, working to deadlines, and maintaining a high level of accuracy in a fast-paced environment.

This position would suit someone with experience in maintenance or facilities management who enjoys being central to the flow of works from initial enquiry through to approval and delivery, and who is looking for a stable, office-based role with progression potential.

Responsibilities 

• Preparing accurate and timely quotations for reactive maintenance jobs and small works

• Reviewing engineer reports, photographs, and job information to build clear scopes of work

• Sourcing materials and obtaining supplier and subcontractor prices

• Assisting with planning approved works and coordinating procurement

• Supporting smooth handover of approved works to the operations team

• Liaising with clients, engineers, subcontractors, and internal project teams

• Responding to quote queries, revisions, and variations

• Maintaining accurate records, spreadsheets, and internal systems

• Salary: £48,000 – £52,000 a year
• Hours: 8am – 5pm
• Job Type: Full time, Permanent
• Location: Bishop’s Stortford
• Out of hours call handling: On a rota basis (currently 1 week in 4)
  
• Reporting to: Senior Technical Manager

Benefits:

Our People are the driving force behind our success, which is why we offer an industry-leading package designed to support your career and personal well-being, including:

• • Salary: Competitive
  • Annual Leave: 25 days + Bank Holidays
  • Sick Pay: Generous sickness and accident insurance
  • Life Assurance: 2x your annual salary
  • Wellness: Access to a private GP and 24/7 confidential telephone counselling via our Employee Assistance Programme
  • Eye Care: Annual eye check reimbursement
  • Reward & Recognition: Employee of the Month/Year, long service awards, and special recognition for going the extra mile
  • Employee Mentoring Programme
  • Personal Development: Training Academy and mentorship opportunities
  • On-site Perks: Parking, gym, spa, and company events
  • Workplace Culture: Bring your dog to work day and casual dress

About You: 

We’re looking for someone who has:

• Level 3 (minimum) trade qualification: 1 year (required)
• IOSH: 1 year (preferred)
• Building services estimating or contracts management: 1 year (required)

Skills & Abilities:

• Proven experience in estimating within relevant industry sectors
• Strong understanding of project costing, budgeting, and financial analysis
• Excellent organisational skills with the ability to manage multiple projects simultaneously
• Proficiency in estimating software programmes and MS Office suite, particularly Excel
• Exceptional attention to detail and accuracy in all calculations and documentation
• Effective communication skills for liaising with suppliers, clients, and internal teams
• Knowledge of cost control principles to optimise project budgets and minimise overruns

To Apply: 

• You must be living and authorised to work in the UK to apply for this position
• Commute to office

Mobile Building Services Engineer (Electrical Bias)

DMG Delta – Service Delivery and Operations Team – London

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.

Are you looking for a rewarding career with a well-established company that truly values its engineers? At DMG, we’re passionate about supporting our team and providing opportunities to grow.

We’re hiring a Mobile Building Services Engineer (Electrical bias) to cover Central & Greater London (within the M25). This is your chance to enjoy competitive pay, fantastic benefits, and the opportunity to be part of a company that invests in its people.

About the Role:

If you’re passionate about delivering top-notch service and want to join a supportive and forward-thinking team, we’d love to hear from you!

You’ll be responsible for maintaining and improving electrical services across client sites.

As a Mobile Building Services Engineer, you will:

• Lead on electrical maintenance, fault resolution, and compliance, ensuring all client sites operate safely and efficiently.
• Attend multiple sites as directed by the Service Desk to meet operational needs.
• Support wider building services, including basic mechanical, plumbing, or HVAC tasks as required.
• Respond to emergencies, completing repairs safely and promptly.
• Maintain accurate documentation, including EICRs, PAT records, and remedial reports.
• Provide professional client updates and advice on site.
• Follow and champion all health and safety practices and electrical regulations.
• Continuously develop your skills and keep up to date with new electrical technologies and standards.
• This role includes participating in a 24/7/365 call-out service, an essential part of our business, handled on a rotational basis.

Key Responsibilities:

• Planned, reactive, and statutory electrical maintenance on lighting, power distribution, emergency lighting, fire alarm interfaces, and control systems.
• Inspection & testing: fixed wire testing (EICR), PAT, statutory inspections in line with 18th Edition Wiring Regulations (BS7671).
• Fault diagnosis, isolation, and repair of electrical issues.
• Support small installation works, upgrades, and modifications.
• Complete all electrical certification and reporting accurately.
• Assist with multi-skilled support when required (mechanical, plumbing, HVAC).
• Attend and resolve electrical emergencies promptly.

• Salary: Up to £48,000 a year
• Hours: 8am – 5pm
• Job Type: Permanent
• Location: Central & Greater London (within the M25)
• Call-Out Rota: 1 in 7 weeks
• Head Office: Bishop’s Stortford  

Benefits:

Our People are the driving force behind our success, which is why we offer an industry-leading package designed to support your career and personal well-being, including:

• • Competitive Salary based on qualifications and experience
  • Overtime Rate: Time and a half or double time, plus a £150 standby allowance
  • Generous Annual Leave: 25 days plus 8 bank holidays
  • Sickness and Accident Protection: Generous salary insurance protection
  • Life Assurance: 2x your annual salary
  • Health & Wellness:
  • Access to a private GP service
  • Confidential Employee Assistance Programme (24/7/365 support)
  • Annual eye care reimbursement
  • Reward & Recognition: Employee of the Quarter and Manager’s Incentive Scheme
  • Training & Development:
  • Access to our Training Academy and Mentor Initiative
  • Opportunities to enhance your technical skills
  • Fully Equipped:
  • Company van, uniform, safety equipment, phone, tablet, fuel card, parking apps, and a company debit card

About You:

We’re looking for someone who has:

• Proven experience in electrical maintenance across commercial or residential sites
• Competence in inspection, testing, fault finding, and repair
• Experience with both planned maintenance and reactive callouts
• Desirable: mobile role experience, familiarity with BMS, multi-service building engineering exposure

Essential Qualifications:

• NVQ Level 3 in Electrical Installation or Maintenance (or equivalent)
• 18th Edition Wiring Regulations (BS7671)
• City & Guilds 2391 or equivalent (Inspection & Testing)
• Full UK driving licence

Desirable Qualifications:

• PAT certificate
• Experience with emergency lighting, fire alarms, and control panels
• Additional multi-skilled training (e.g., plumbing basics, F-Gas awareness)
• IPAF / PASMA

Skills & Abilities:

• Strong diagnostic and fault-finding skills
• Ability to interpret electrical drawings and manuals
• 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 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 electrical safety and regulatory compliance
• Commitment to safe working practices
• Proactive in hazard identification and risk management 

To Apply:

• You must be living and authorised to work in the UK to apply for this position.
• Commute to office

Mobile Commercial Gas Engineer

DMG Delta – London

DMG Delta Ltd has been delivering trusted HVAC services for over 30 years. We’re proud to work with a prestigious range of clients across London and the Home Counties. Our head office is near Stansted Airport, but most of your work will be within the M25 and Central London.

Are you looking for a rewarding career with a well-established company that truly values its engineers? At DMG, we’re passionate about supporting our team and providing opportunities to grow.

We’re hiring 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.

About the Role:

If you’re passionate about delivering top-notch service and want to join a supportive and forward-thinking team, we’d love to hear from you!

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 tasks include:

• 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

• Salary: £48,000 – £55,000
• Hours: 8am – 5pm
• Job Type: Permanent
• Location: Central & Greater London (within the M25)
• Overtime: Time and a half or double time, plus £150 standby allowance
• Call-Out Rota: 1 in 7 weeks
• Head Office: Bishop’s Stortford
• Reporting to: Operations Manager

Benefits:

Our People are the driving force behind our success, which is why we offer an industry-leading package designed to support your career and personal well-being, including:

• • Competitive Salary based on qualifications and experience
  • Overtime Rate: Time and a half or double time, plus a £150 standby allowance
  • Generous Annual Leave: 25 days plus 8 bank holidays
  • Sickness and Accident Protection: Generous salary insurance protection
  • Life Assurance: 2x your annual salary
  • Health & Wellness:
  • Access to a private GP service
  • Confidential Employee Assistance Programme (24/7/365 support)
  • Annual eye care reimbursement
  • Reward & Recognition: Employee of the Quarter and Manager’s Incentive Scheme
  • Training & Development:
  • Access to our Training Academy and Mentor Initiative
  • Opportunities to enhance your technical skills
  • Fully Equipped:
  • Company van, uniform, safety equipment, phone, tablet, fuel card, parking apps, and a company debit card

About You:

We’re looking for someone who has:

• 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

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 

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:

• You must be living and authorised to work in the UK to apply for this position.
• Commute to office