Service Administrator

Service Administrator

Location: Abingdon (OX14 1RL)

At Trinity Fire & Security, we’re more than just experts in safety and security — we’re a supportive team with a shared purpose: protecting what matters most to our customers.

We’re looking for an organised and efficient Service Administrator to join our Abingdon office to provide admin support to the Service Department.

This is a key administrative role responsible for supporting the efficient delivery of service operations by ensuring service jobs and call-outs are accurately assigned, progressed, documented, and closed.

Working closely with customers, service engineers, and internal teams, you will play a vital role in maintaining service records, managing documentation, and ensuring all necessary customer purchase orders and supporting paperwork are obtained to enable smooth service delivery and invoicing.

This is an excellent opportunity for an experienced administrator who thrives in a fast-paced environment and enjoys building strong relationships while providing outstanding customer service.

What You’ll Be Doing

• Chase outstanding customer Purchase Orders (POs) to support job scheduling, service delivery, and invoicing.

• Review completed service visits and ensure all service reports, timesheets, and supporting documentation are received and processed correctly.

• Close completed service jobs and call-outs

• Act as a primary point of contact for customers regarding job status, service updates, and outstanding PO requirements.

• Support the invoicing process

• Monitor job progress and identify any delays, missing documentation, or customer issues

What We’re Looking For

• Professional Telephone manner

• Proficient in Microsoft Office, including Excel and Word

• Excellent critical thinking and problem-solving skills

• Excellent verbal and written communication skills

• Ability to work independently or as part of a team

• Adaptable working approach to suit the customer needs

• Keen attention to detail

• Work well under pressure and ability to multitask

• Excellent time management

• Previous administrative experience preferred

Why You’ll Love Working Here

• A supportive, friendly team that values collaboration and clear communication.

• 23 days’ holiday, increasing with service, plus bank holidays.

• Employee Discount Programme – savings across 800+ retailers.

• Salary Sacrifice Pension

• 3 x salary Life Assurance

• Employee Assistance Programme.

• Ongoing training and career development opportunities.

About PTSG

PTSG Group is a leading provider of specialist services across the UK and Europe.

Through the acquisition of high-quality specialist businesses, PTSG has built a group of industry-leading companies delivering services across Access & Safety, Electrical Services, Building Access, Fire Solutions, and Water Treatment.

With over 3,300 specialists supporting 90,000+ customers across 200,000 buildings, delivering over 170 different services, we are committed to delivering safe, compliant, and high-quality services nationwide.

At PTSG, our aim is simple. To be a great place to work and a great company to do business with.

Armed Forces Covenant

PTSG Group is proud to support the Armed Forces community and has formally signed the UK Armed Forces Covenant.

We recognise the valuable skills and experience that service leavers, veterans, reservists, and military families bring to the workplace, including leadership, teamwork, resilience, and technical expertise.

As part of our commitment, we guarantee an interview to ex-Forces applicants who meet the minimum criteria for the role and are committed to supporting Armed Forces personnel in building long-term civilian careers across our business.

PTSG Group is an equal opportunities employer. We are committed to creating an inclusive and supportive workplace where everyone is treated fairly and with respect.

We welcome applications from all backgrounds and are dedicated to promoting diversity, equality, and inclusion throughout our recruitment process and across the wider business.

Security Vetting

It is an industry requirement that successful candidates undergo security vetting. Offers of employment are subject to satisfactory vetting and may be withdrawn if the required standards are not met.

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