Office Administrator, London

Office Administrator / Service Desk Coordinator

Battersea, London (Full-Time, On-Site)

Heat-Plex Limited

About Heat-Plex

Heat-Plex is a fast-growing, premium plumbing, heating and gas company operating across London. We work with private homeowners, landlords and managing agents, delivering high standards of workmanship and customer care.

We are approaching £1.5m+ turnover and are now building a stronger in-house office team to support our next stage of growth.

This is not a quiet reception role. It is a key position at the centre of a busy operations team.

The Role

• You will be the first point of contact for our customers and engineers.
• Your role is to keep the diary flowing, ensure communication is clear and professional, and help the business operate efficiently day to day.
• You will work closely with our Operations Manager and leadership team.

Core Responsibilities

• Answer all incoming calls professionally and confidently
• Book jobs accurately into our CRM system
• Manage customer emails and respond with clear, well-written communication
• Coordinate engineer diaries and confirm appointments
• Follow up on quotations and outstanding approvals
• Support with aftercare and customer satisfaction follow-ups
• Assist with general office coordination and admin tasks
• Help maintain high standards of organisation and workflow

You will play a direct role in improving customer experience and helping the company grow.

What We’re Looking For

We are looking for someone who:

• Speaks clearly and confidently on the phone
• Writes professional, polished emails
• Is highly organised and calm under pressure
• Can manage multiple tasks without losing detail
• Is proactive and takes ownership rather than waiting for instruction
• Enjoys working in a fast-paced environment
• Wants to grow with a business, not just “do a job”

Previous administrative or service desk experience is preferred.

Experience in trades, property or construction environments is a bonus — but not essential.

Systems

Experience with:

• Microsoft Office
• CRM systems (training provided)
• Scheduling or diary management software

What We Offer

• Competitive salary (based on experience)
• A growing, ambitious company environment
• Opportunity to develop into a senior office or operations role
• Supportive team culture
• Modern office space in Battersea

Important

This role is fully on-site. We are building a strong office culture and require someone present and engaged with the team.

If you are organised, confident and ready to take ownership in a growing business, we would love to hear from you.