Office Manager (Construction)

Be among the first 25 applicants to join Chesworth Construction Ltd, a fast‑growing, family‑run construction company delivering a wide range of high‑quality commercial and residential projects across Mid Wales & Shropshire. We’re looking for a skilled and motivated Office Manager to join our Oswestry office and play a key part in supporting the company’s continued development.

The Role

This is a key and wide‑ranging position at the heart of the company. You’ll work closely with the Company Directors, supporting all areas of operation – finance, administration, HR, procurement, and compliance – to keep the company running efficiently day‑to‑day. The role offers real variety: you’ll manage regular responsibilities while also taking on new tasks as projects and priorities evolve. It suits someone who’s organised, proactive, and confident managing multiple responsibilities in a fast‑paced environment.

Key Responsibilities

Office Management & PA Support

• Manage incoming calls, emails and correspondence, directing items to the right person.
• File and manage project documentation, both digital and physical.
• Attend pre‑contract or client meetings to take minutes when required.
• Maintain and update the company calendar – tracking renewals, retention release dates, project milestones and meetings.
• Support Directors with diary management, scheduling and general PA duties.
• Order office supplies, PPE and ensure office systems and templates are kept organised and up to date.
• Operate under the guidance and direction of the Company Directors.

Communication & Coordination

• Act as a key link between the office and site teams, ensuring clear, consistent, and efficient communication.
• Liaise with Directors daily and respond promptly to changing business needs or project requirements.
• Proactively identify and elevate tasks, issues or upcoming deadlines to the appropriate person.
• Utilise the company’s digital, cloud‑based filing systems, shared calendars, task lists and email platforms to ensure information is organised, up‑to‑date and accessible.
• Prepare and issue client invoices and track payments.
• Record and reconcile bills, receipts, credit notes and payments using Xero.
• Manage bookkeeping, PAYE payroll, CIS and pension submissions.
• Liaise with the accountant on VAT returns, reports and statutory deadlines.
• Support financial tracking and reporting.

Procurement & Project Support

• Assist in preparing PQQs, tender submissions and supporting documentation.
• Prepare and maintain template documents and company forms under the Director’s guidance.
• Issue and track purchase orders to suppliers and subcontractors.
• Send and follow up on supplier/subcontractor enquiries.
• Maintain approved supplier/subcontractor databases and compliance documentation.

HR Administration

• Maintain employee & subcontractor records (insurance, training, qualifications).
• Prepare employment contracts and starter/leaver documents.
• Track operative training renewals and maintain records of certifications (CSCS, SMSTS, First Aid, etc.).
• Record and manage holidays and absences.

Health, Safety & Compliance

• Prepare and update Health & Safety documentation, including RAMS, COSHH assessments, inductions and site files.
• Maintain and keep company policies and procedures up to date.
• Onboard new suppliers and subcontractors – ensuring all required compliance information (insurance, certifications, H&S documentation) is received, checked and filed correctly.
• Manage and update company accreditation records (CHAS, Constructionline).
• Track and organise the renewal of company and vehicle insurances, ensuring all documentation is up to date and accessible.

Vehicle & Plant Administration

• Keep records for company vehicles and plant (MOTs, servicing, tax, insurance).
• Track maintenance schedules and arrange servicing or repairs when needed.
• Maintain logs for fuel cards and vehicle usage.

Skills & Experience

• Proven experience in office management or administration, ideally within the construction industry.
• Experience supporting senior management or company directors in a PA capacity.
• Strong working knowledge of Xero Accounting Software, including payroll, CIS and pensions.
• Confident using the Microsoft Office suite (Word, Excel, Outlook, PowerPoint) and able to learn new systems quickly.
• Experience with cloud‑based filing and collaboration tools (shared drives, task lists, calendars, etc.).
• Excellent organisational and time‑management skills, with the ability to manage multiple priorities.
• Strong written and verbal communication skills.
• High level of accuracy and attention to detail.
• Professional and discreet when handling confidential or sensitive information.
• Positive, proactive attitude, able to work both independently and as part of a small, close‑knit team.

Desirable (not essential)

• Experience preparing PQQs, tender submissions or procurement documentation.
• Familiarity with Health & Safety systems and documentation such as RAMS, COSHH or site files.
• Experience in maintaining or submitting accreditation records (e.g. CHAS, Constructionline).
• Understanding of HR administration, including contracts, training records, etc.
• Knowledge of construction processes and terminology.

What We Offer

• Competitive salary: £30,000 – £40,000 per annum (dependent on experience)
• Hours: Full‑time with flexitime available (to be agreed with the successful candidate)
• Company pension scheme
• Direct involvement with Directors and real influence on how the business operates
• Supportive, close‑knit team where initiative is valued
• Career progression, training and development opportunities
• Free on‑site parking
• A varied, fulfilling role at the centre of a growing construction business.

If you’re interested in joining us, please respond to this post with an up‑to‑date CV and covering letter.

Follow us on social media: @chesworthconstruction

www.chesworthconstruction.co.uk