Administrative Assistant

The Mechanical Specialists Limited; Maidstone; On-site; GBP 11,000 - 14,000; Part time

Job summary

A well-established company in Maidstone is seeking a part-time Administrative Assistant to support operations. The role involves using Sage software for accounting and general office duties, alongside assisting management and engineers. The ideal candidate should possess strong organisational skills and prior experience with Sage Accounting.

Benefits

Flexible working hours

Friendly work environment

Opportunity for growth

On-site parking

Qualifications

• Proven experience using Sage Accounting software essential.
• Solid administrative background, ideally within a trade or construction-related business.
• Strong organisational skills and attention to detail.

Responsibilities

• General office administration and clerical support.
• Invoicing and credit control using Sage.
• Bank reconciliation and maintaining financial records.

Skills

Sage Accounting Software

Microsoft Office

Organisational Skills

Verbal Communication

Written Communication

Job description

Company Description

The Mechanical Specialists Limited (t/a Cooling Maintenance) is a privately owned company specialising in the installation and maintenance of Air Conditioning Services, Ventilation, and Small Plumbing works. With a highly skilled team of on-site engineers and management, we are committed to delivering projects on time, to specification and budget, ensuring expectations are met. Located in the London Area, United Kingdom, we welcome troubleshooting questions and aim to assist wherever possible.

Role Description

Part-Time Administrative Assistant (with Sage Accounting Experience)

Location: Maidstone, Kent

Hours: Part-time – 3 days per week (flexible hours considered)

Salary: Dependent on experience

About Us:

We are a well-established air conditioning company based in Maidstone, providing high-quality HVAC services to commercial clients across London and the south-east. As we continue to grow, we are seeking a reliable and experienced Administrative Assistant to join our small, friendly team.

Role Overview:

This part-time position is key to the smooth running of our back-office operations. The successful candidate will be responsible for a variety of administrative and accounting duties, with a particular focus on Sage accounting software. Experience with CIS (Construction Industry Scheme) is highly desirable.

Key Responsibilities:

General office administration and clerical support

Invoicing, credit control, and processing supplier invoices using Sage

Bank reconciliation and maintaining accurate financial records

Payroll preparation support (including CIS if applicable)

Managing customer and supplier accounts

Answering phone calls, handling emails, and booking appointments

Supporting the Director and engineers with scheduling and paperwork

Filing and maintaining digital records in an organised manner

Required Skills & Experience:

Proven experience using Sage Accounting software (essential)

Solid administrative background, ideally within a trade or construction-related business

Strong organisational skills and attention to detail

Confident with Microsoft Office (Word, Excel, Outlook)

Ability to manage multiple tasks independently and efficiently

Excellent written and verbal communication skills

CIS (Construction Industry Scheme) experience preferred

What We Offer:

Flexible, part-time working (3 days per week)

Friendly, supportive work environment

Opportunity to grow within a small but established business

On-site parking available

To Apply:

Please send your CV and a short cover letter detailing your relevant experience, availability, and why you’d be a great fit for this role.