On-Site Construction Admin Assistant — Growth & Impact

Walker-White Plumbing Hvac and Mechanical Inc; Columbia (SC); On-site; USD 34,000 - 48,000; Full time

Benefits offered by this job

Health insurance

Paid time off

Holidays

Retirement plan

Job summary

Walker White Mechanical in Columbia, SC is seeking an Administrative Assistant to support office and field operations. This full-time, on-site role requires someone organized and dependable to handle multiple priorities in a fast-paced construction environment.

You will answer phones, manage records, assist with scheduling, invoicing, and basic bookkeeping, and support HR onboarding. Strong communication and detail orientation are essential.

Qualifications

• Strong communication and organizational skills.
• Proficient in Microsoft Office (Word, Excel, Outlook).
• 1+ years of administrative or office support experience, preferably in construction/trades.

Responsibilities

• Answer phones, greet visitors, and route inquiries to the right team member.
• Manage office correspondence, filing, and document organization.
• Support scheduling for project managers and field supervisors.
• Assist with data entry, invoicing, and basic bookkeeping tasks.
• Order and track office/josite supplies.
• Prepare reports, letters, and other business documents.
• Support HR onboarding paperwork and employee files.

Skills

Communication

Organization

Education

High school diploma or equivalent

Associate’s degree

Tools

Microsoft Office

Job description

Walker White Mechanical in Columbia, SC is seeking an Administrative Assistant to support office and field operations. This full-time, on-site role requires someone organized and dependable to handle multiple priorities in a fast-paced construction environment.

You will answer phones, manage records, assist with scheduling, invoicing, and basic bookkeeping, and support HR onboarding. Strong communication and detail orientation are essential.