Combustion & Gas Engineer

Dalkia UK; Guildford; On-site; GBP 30,000 - 40,000; Full time

Benefits offered by this job

25 days annual leave + bank holidays

Matched pension

Life Assurance & Private Medical Insurance

Flexible benefits including retail discounts

Recognition & referral bonus programmes

Volunteering day & Employee Assistance Programme

Job summary

Dalkia UK is seeking a skilled Combustion & Gas Engineer to support multi-site education services in Guildford. The role involves delivering planned and reactive maintenance across gas and heating systems. Responsibilities include fault diagnosis, maintenance, and safety compliance. The ideal candidate will possess valid ACS gas qualifications, strong communication skills, and a full UK driving licence. Benefits include 25 days of annual leave, matched pension, private medical insurance, and flexible perks. Join us and be part of a dedicated and professional team committed to high-quality service.

Qualifications

• Valid ACS gas qualifications including CCN1 and CENWAT required.
• Experience servicing and maintaining domestic and/or light commercial boilers.
• Good understanding of Health & Safety practices essential.

Responsibilities

• Perform planned preventative maintenance (PPM) and fault diagnosis on gas and heating systems.
• Respond to reactive maintenance tasks and helpdesk requests across multiple sites.
• Ensure compliance with gas safety regulations and Health & Safety standards.

Skills

ACS gas qualifications (CCN1 and CENWAT)

Fault-finding and diagnostic skills

Communication and record-keeping skills

Experience with commercial gas systems

Understanding of Health & Safety practices

Full UK driving licence

Tools

CAFM systems

PPM systems

Job description

Call out 1 in 5 - £120 call out included

Dalkia UK is looking for a skilled and reliable Combustion & Gas Engineer to join our team, supporting a multi-site education portfolio. This role focuses on delivering high-quality planned and reactive maintenance across domestic and light commercial gas and heating systems.

You’ll play a key role in ensuring safe, compliant, and efficient operation of heating systems while contributing to a strong team culture and excellent client service.

What You Will Do:

• Carry out planned preventative maintenance (PPM), servicing, and fault diagnosis on domestic and light commercial gas and heating systems
• Diagnose and repair faults on boilers and associated systems, including valves, controls, and pipework
• Complete minor installation and remedial works while identifying and reporting further required repairs
• Respond promptly to reactive maintenance tasks and helpdesk requests across multiple sites
• Maintain accurate records and documentation using logbooks and CAFM systems
• Ensure all works are completed in line with gas safety regulations and Health & Safety standards
• Support compliance across the estate and assist in coordinating subcontractors when required
• Contribute to general mechanical maintenance tasks and assist other trades to support contract delivery
• Maintain company equipment and proactively support improvements to service delivery and efficiency

What We’re Looking For:

• Valid ACS gas qualifications (including CCN1 and CENWAT)
• Experience servicing and maintaining domestic and/or light commercial boilers
• Strong fault-finding and diagnostic skills
• Good understanding of Health & Safety practices
• Strong communication and record-keeping skills
• Full UK driving licence
• Experience within a facilities management or commercial environment
• Exposure to commercial gas systems or plantrooms
• Knowledge of pumps, valves, and heating controls
• Understanding of sealed and pressurised systems (e.g. expansion vessels)
• Experience using CAFM or PPM systems

What’s in it for you:

• 25 days annual leave + bank holidays (with option to buy 5 more) PLUS a day off for your birthday and increase with length of service!
• Overtime availability
• Matched pension
• Life Assurance & Private Medical Insurance (after 12 months)
• Flexible benefits including retail discounts, electric car scheme, wellbeing support
• Recognition & referral bonus programmes
• Volunteering day & Employee Assistance Programme

At Dalkia, we’re passionate about delivering high-quality facilities services that keep our clients’ buildings running smoothly. We promote a culture of safety, collaboration, and professional growth. As a Combustion & Gas Engineer, you’ll be a valued member of a trusted team committed to excellence and customer satisfaction.

We are committed to equity, diversity, and inclusion. We ensure that every applicant is treated fairly and respectfully throughout our selection process. If you require any adjustments, please inform us in confidence. Our talent acquisition team is here to assist you.