Commercial Gas Engineer

Competitive pay Expression of Interest – Commercial Gas Engineer Location: Birmingham Contract Start Date: 1 July 2026 Contract Type: Full-time, Permanent

Join us on our new, exciting contract with Birmingham City Council

Mears Group has been awarded a major new 10-year partnership with Birmingham City Council to deliver repairs, maintenance, and planned investment work across 11,500 homes in central and west Birmingham. This contract represents one of our most significant projects in the city and will create a wide range of opportunities across our operational teams.

Submitting an expression of interest does not guarantee employment, nor does it provide salary or detailed role information at this stage. It simply ensures that you are first to be contacted when full job details, including pay, working hours, and application timelines, are confirmed.

About the Role

The Commercial Gas Engineer is responsible for the installation, maintenance, fault diagnosis, and repair of commercial gas-fired systems and associated plant across commercial and residential-scale properties. The role requires strong working knowledge of commercial heating systems, including CHP units, HIUs, and low-carbon technologies such as Air Source Heat Pumps.

Duties

Install, service, and maintain commercial gas appliances and plant

Diagnose and repair faults on commercial boilers and associated systems

Maintain and repair commercial gas pipework and valves

Carry out combustion analysis and performance testing

Ensure compliance with Gas Safety (Installation & Use) Regulations

Complete commercial gas safety checks and documentation

Service, maintain, and fault-find Heating Interface Units

Diagnose heating and hot water issues relating to HIUs

Balance, commission, and pressure-test HIU systems

Liaise with heat network operators and building management systems (BMS)

Carry out HIU replacements and upgrades where required

Carry out planned maintenance on CHP units

Diagnose and repair CHP mechanical and control faults

Monitor system efficiency and thermal output

Work with electrical and control specialists where required

Ensure CHP systems operate safely and efficiently within plant rooms

Maintain and fault-find Air Source Heat Pumps (ASHPs)

Understand integration of ASHPs with commercial heating systems

Support hybrid systems (gas + renewable technologies)

Monitor system performance and efficiency

Work safely in commercial plant rooms

Maintain pumps, pressurisation units, valves, and expansion vessels

Support commissioning and refurbishment projects

Identify defects and recommend remedial works

Participate in call-out rota where applicable

Ensure all works comply with legislation, standards, and best practice

Complete job sheets, service records, and compliance documentation

Follow health & safety procedures, RAMS, and permit-to-work systems

Liaise professionally with clients, facilities teams, and managers

Role Criteria

City & Guilds or NVQ Level 3 in Gas Installation and Maintenance

Valid ACS core qualifications, CCN1, CENWAT

CIGA1, CIGA2, CIGA3, ICPN1, CDGA1

DAH, (desirable)

CHP manufacturer training or certification – Desirable

HIU manufacturer training (e.g. SAV, Heatweb, Danfoss, Altecnic) (desirable)

LCL Awards / BPEC – Heat Networks & HIUs (desirable)

ASHP qualification (e.g. LCL / City & Guilds / manufacturer training) (desirable)

G3 Unvented Hot Water (desirable)

Strong experience in commercial heating environments

Good understanding of district heating / heat networks

Proven knowledge of CHP and low-carbon systems

Ability to fault-find complex heating and control issues

Comfortable working independently and as part of a wider technical team

Flexible and willing to travel across properties and support out-of-hours requirements

Full UK driving licence

Benefits we can offer you

25 days annual leave plus bank holidays

Annual Mears Fun Day - Our annual Fun Day is organised as a massive thank you from the Executive team for all the hard work!

Volunteering Leave - Mears supports employees to undertake paid volunteering in the community, in support of our social value commitment.

Staff perks with Mears Rewards - discounts of up to 10% weekly groceries, holidays, eye test vouchers, Share save scheme, plus much more

Family friendly policies

Company Vehicle and Fuel Card

Access to EAP Counselling sessions

All our roles require candidates to have the entitlement to work within the UK, Mears does not currently offer visa sponsorship.

To drive a Mears vehicle, you must be aged over 21 have held your licence over 3 months and have less than 9 points.

Candidates should be aware that all our roles are subject to relevant Background, Identity & Security checks before commencement of employment.

Apply below or to discuss your application further; contact: Francesca Swan () If you need any help with your application process, we are here to support you. We will be accessible every step of the way.

At Mears Group, we are committed to fostering a diverse and inclusive environment where everyone can thrive, we are a Disability Confident employer, valuing individuality and ensuring equal opportunities for all.

We proudly support the Armed Forces Covenant and are honoured to have achieved the Gold Award in the Defence Employer Recognition Scheme (ERS) to coincide with this, we hold an Endorser Award for the Career Transition Partnership, recognising our commitment to veterans transitioning into civilian careers.

In our continued effort to promote social mobility, we invite applicants to voluntarily share their background information during the application stages to help us better understand the diverse experiences of our candidates. This is to ensure we are committed to improving social mobility. We use the Social Mobility Index to assess and enhance opportunities for individuals from diverse backgrounds. These questions are optional and will not impact your ability to apply.