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Trinity Fire & Security Systems

Service Manager

Company logo
Trinity Fire & Security Systems
Designs, installs, commissions and maintains fire protection, life safety and security systems.
Service Manager responsible for supporting the Engineering Team in delivering high-quality service at Heathrow Airport's Fire Systems, handling service activities, stakeholder relationships, and resourcing.
23d ago
Intermediate (4-7 years), Expert & Leadership (13+ years), Experienced (8-12 years)
Full Time
Hounslow, England, United Kingdom
Onsite
Company Size
375 Employees
Service Specialisms
Fire Safety
Security Systems
Engineering
Design
Consulting
Installation
Maintenance
Sector Specialisms
Commercial
Residential
Industrial
Fire Detection & Suppression
Life Safety
Security Systems
Integrated Multi-site Packages
Fire Safety and Compliance
Role
What you would be doing
invoice processing
resource scheduling
stakeholder engagement
  • Raise and process all invoice requests and purchase orders within agreed SLA’s
  • Handle the arrangements of labour resourcing and project delivery schedules.
  • Effectively communicate with internal and external stakeholders to ensure our service commitments are met.
What you bring
workload management
stakeholder management
service accuracy
fire industry
aviation sector
  • Ability to prioritise workloads and manage deadlines effectively.
  • Demonstrable experience in managing stakeholder relationships, providing outstanding customer service.
  • Proven ability to handle high level service activities with accuracy and thoroughness
  • Prior experience in the Fire Industry and/or Aviation sector advantageous but not required.
Benefits
  • Pension scheme - Via Royal London
  • Employee Discount Programme - Discounts and cashback across over 800 national retailers
  • Employee Welfare assistance programme
  • Holiday - 23 days which increases with service, plus bank holidays
  • Employee referral scheme – earn up to £2,000 for each employee you bring into Trinity
  • Life Assurance
Training + Development
Information not given or found
Company
Overview
Founded 1997
Year Established
Began as a regional specialist installing fire detection systems.
Revenue £60M
Annual Revenue
Exceeds £60 million annually.
Cloud Migration 2021
IT Infrastructure Update
Moved to cloud-based DRaaS for scaling and data resilience.
  • It grew into a turnkey provider, offering design, installation, commissioning, and full aftercare for fire, safety, and security solutions.
  • Headquartered in Exeter, it later became a key pillar of PTSG’s Fire Solutions division following its 2019 acquisition.
  • Notable projects include system upgrades at Heathrow T3, Oxford University Hospitals, University of Hertfordshire, Selfridges, and York Magistrates’ Court.
  • The company partners with top-tier manufacturers like Honeywell (Gent, Notifier), Hochiki, Ansul, Tyco FireClass, Milestone, Axis, Avigilon, SALTO, CEM and Gallagher.
  • Highly accredited (e.g., BAFE SP101, LPS1014, NSI Gold), Trinity pairs technical excellence with rigorous legislative compliance.
  • From standalone residential alarms to integrated, multi-site commercial platforms, Trinity tailors each solution to project needs.
Culture + Values
NSI Gold
Accreditation Recognition
Award-winning recognition for exceptional service quality and operational excellence.
  • Invest in the continued development of team members and reward hard work and dedication.
  • Success is due to dedicated and hardworking team members.
  • Customer‑focused: design tailored solutions, robust partner evaluation, deliver full aftercare and legislative compliance.
Environment + Sustainability
100% Recycled Packaging
Sustainable Packaging Initiative
Switched to 100% recycled cardboard and fibre-based materials for packaging.
19 Trees Planted
CO₂ Sequestration Initiative
Planted 19 trees to offset carbon emissions through a supplier partnership.
1,000kg CO₂ Reduction
Cycling-to-Work Scheme
Employee cycling initiative reduces carbon emissions and promotes health.
2030 Net Zero Target
Carbon Neutrality Commitment
Aiming to achieve net zero carbon emissions across all operations by 2030.
  • ISO 14001 accredited; committed to high environmental performance and compliance with legislation.
  • Fully removed all non-recyclable plastic from packaging; switched to fibre-based tape, recycled pallet wrap and straps.
  • Installed cardboard shredder in warehouse to eliminate plastic packaging and generate eco-friendly filler.
  • Switched office consumables to bamboo products (hand towels, toilet paper).
  • Heathrow and MoD Aldershot offices achieved Net Zero Carbon for 2022–2023.
Inclusion & Diversity
  • No DEI strategy or gender statistics publicly disclosed.
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