
Location
Isleworth, London with travel to multiple Thames Water sites across West London and Thames Valley. Base location within South West London. Travel required to various sites, sometimes up to approximately 150-mile round trips. A full driving licence, access to a vehicle, and insurance for work travel are required. A monthly car allowance is provided.
Hours
Monday to Friday, 36 hours per week.
Salary
Up to £55,000 per annum, including car allowance, depending on experience and skills.
About the Role
As a Fire Alarm Engineer, you will assist the Lead Project Engineer in delivering all aspects of fire alarm installations, including minor and major works. You will report on the progress and quality of work before handover. This role involves site visits to assess contractors' work against electrical and fire safety standards, compiling reports with photographic evidence, advising and scoping works with contractors, and carrying out fire alarm risk assessments to BS 5839-1 standards. You will also be involved in writing specification documents, health and safety management for your project portfolio, assessing tenders, financial and programme management, and providing technical assistance to key stakeholders. In-house training will be provided to support your progression towards a Project Engineer role, including full Health & Safety management responsibilities. This is a varied role requiring strong installation knowledge, particularly electrical containment and fire standards to BS 5839 Pt 1.
About Thames Water
Thames Water is the UK’s largest water and wastewater company, serving over 16 million customers. We are committed to building a better future for our customers, communities, people, and the planet. We offer meaningful career opportunities, flexible working arrangements, and excellent benefits. We value diversity and inclusion and support all applicants throughout the recruitment process. Join us to make a real difference every day and help protect the world’s water for future generations.
Experience
- Experience within a commercial and/or technical role is essential.
- Strong knowledge of fire alarm installation, electrical standards (especially containment), and fire standards to BS 5839 Pt 1.
- Experience or training in fire alarm principles and standards, ideally holding FIA BS 5839-1 Fundamental or equivalent certification.
About you
- Able to work unsupervised and use your own initiative to deliver specified outputs.
- Willingness to travel regularly to multiple sites.
- Strong communication skills to liaise with contractors, stakeholders, and customers.
- Motivated to progress towards a Project Engineer role with responsibility for health and safety management.
Qualifications
- Full UK driving licence and access to your own vehicle with insurance for work travel.
- FIA BS 5839-1 Fundamental or equivalent certification in Fire Alarm principles and standards is required.
- Relevant training or work experience in fire alarm engineering.
THAMES WATER UTILITIES LIMITED












