Mechanical Estimator (Industrial HVAC)

Network Engineering

Job Location:

Johannesburg - South Africa

Monthly Salary: Not Disclosed

Posted on: 10 hours ago

Vacancies: 1 Vacancy

Job Summary

Reference: NES025618-RS-1

We are seeking a skilled and detail-oriented Mechanical Estimator with experience in industrial HVAC systems to join our team. The successful candidate will be responsible for preparing accurate cost estimates analyzing project requirements and supporting the tendering process for large-scale mechanical and HVAC installations.

Duties & Responsibilities

The Mechanical Estimator is responsible for preparing accurate competitive and commercially viable cost estimates for industrial HVAC projects.

This role supports business development and project delivery by analysing tender documents assessing technical requirements and pricing materials labour and subcontractor inputs in line with South African standards and market conditions.

The estimator plays a critical role in securing profitable projects while ensuring compliance with engineering specifications client requirements and applicable regulations.

Key Responsibilities

Tendering & Estimation

Analyse tender documents specifications drawings and BOQs (Bills of Quantities)
Prepare detailed cost estimates for:
HVAC systems (chilled water VRF/VRV ventilation ducting extraction systems)
Industrial process ventilation and cooling systems
Perform quantity take-offs from drawings and models (manual and software-based)
Compile complete and accurate tender submissions within deadlines
Develop pricing strategies aligned with company margins and market competitiveness

Cost Analysis & Pricing

Source and evaluate supplier and subcontractor quotations
Build up costs for:
Materials (ducting piping insulation equipment)
Labour (installation teams specialists)
Plant and equipment
Consider site-specific factors such as:
Remote locations (common in mining/industrial SA projects)
Labour availability and productivity
Safety and compliance requirements
Maintain and update cost databases and historical pricing records

Technical Evaluation

Interpret HVAC system designs and engineering drawings
Identify risks discrepancies and value engineering opportunities
Propose cost-saving alternatives without compromising performance or compliance
Liaise with design engineers to clarify scope and technical requirements

Commercial & Contractual Support

Assist in preparing:
Tender clarifications
Commercial submissions
Contract documentation
Evaluate contract conditions (e.g. JBCC NEC FIDIC)
Identify commercial risks and mitigation strategies
Support handover to project execution teams after award

Compliance & Standards

Ensure all estimates align with:
South African National Standards (SANS)
Occupational Health and Safety Act (OHSA)
Environmental and energy efficiency requirements
Incorporate compliance costs into estimates (e.g. safety permits QA/QC)

Stakeholder Engagement

Liaise with:
Clients and consultants
Suppliers and subcontractors
Internal engineering and project teams
Attend site visits tender briefings and clarification meetings when required

Key Skills & Competencies:

Technical Skills

Strong understanding of industrial HVAC systems and components
Ability to read and interpret mechanical drawings and P&IDs
Proficiency in estimation software and tools (e.g. Excel CCS CostX or similar)
Knowledge of South African construction and engineering practices

Analytical Skills

High attention to detail and accuracy
Strong numerical and cost analysis capabilities
Ability to assess risk and identify cost drivers

Communication Skills

Clear written and verbal communication
Ability to compile professional tender documents
Effective coordination with multidisciplinary teams

Commercial Awareness

Understanding of project costing margins and profitability
Awareness of market trends and pricing fluctuations in South Africa

Qualifications & Experience

Minimum Requirements

National Diploma or Degree in Mechanical Engineering (or related field)
37 years experience in mechanical/HVAC estimation (industrial environment preferred)

Preferred

Experience in mining manufacturing or large industrial projects
Knowledge of contract forms (NEC FIDIC JBCC)
Professional registration (e.g. ECSA candidate/registered) is advantageous

Please send your cv to

Reference: NES025618-RS-1We are seeking a skilled and detail-oriented Mechanical Estimator with experience in industrial HVAC systems to join our team. The successful candidate will be responsible for preparing accurate cost estimates analyzing project requirements and supporting the tendering proce...