Quantity Surveyor - Plumbing

Quantity Surveyor – Plumbing

Job Summary

The Quantity Surveyor – Plumbing is responsible for the commercial and cost management of plumbing works throughout the project lifecycle, from tendering and cost estimation to procurement, progress billing, variation orders, and final account settlement. The position requires strong knowledge of plumbing systems, construction practices, DUPA (Detailed Unit Price Analysis), quantity take-off, and cost control.

Key Responsibilities

1. Quantity Take-Off & Measurement

• Prepare accurate quantity take-offs for plumbing works based on approved plans, specifications, and construction drawings.
• Review plumbing plans, shop drawings, specifications, BOQ, and contract documents.
• Measure quantities for pipes, fittings, valves, fixtures, pumps, tanks, sanitary fixtures, and other plumbing materials.
• Conduct site measurements and verify actual installed quantities.
• Identify discrepancies between drawings, BOQ, and actual site conditions.

2. Cost Estimation & DUPA

• Prepare detailed cost estimates for plumbing works using DUPA (Detailed Unit Price Analysis).
• Analyze material, labor, equipment, and other direct and indirect costs.
• Develop and review unit rates for plumbing activities.
• Ensure estimates are based on current material prices, labor rates, equipment costs, and project requirements.
• Review and validate subcontractor and supplier quotations.
• Assist in preparing competitive and accurate tender proposals.

3. BOQ & Tendering

• Prepare, review, and evaluate Plumbing BOQs.
• Conduct detailed comparison of tender documents, specifications, and drawings.
• Prepare tender estimates and cost breakdowns.
• Identify scope inclusions, exclusions, and potential cost risks.
• Assist in preparing bid clarifications and tender queries.
• Evaluate subcontractor bids and recommend the most commercially suitable option.

4. Cost Control

• Monitor project costs against the approved budget and contract value.
• Track committed, actual, and projected costs for plumbing works.
• Prepare cost reports and variance analysis.
• Monitor material consumption and wastage.
• Identify potential cost overruns and recommend appropriate corrective actions.
• Maintain updated cost records throughout project implementation.

5. Progress Billing & Valuation

• Prepare and evaluate progress billings for plumbing works.
• Verify quantities and work accomplishments prior to payment.
• Conduct joint measurements with the site team, client, consultant, or subcontractor when required.
• Review supporting documents for billing claims.
• Monitor retention, deductions, advances, and other contractual adjustments.

6. Variation Orders & Claims

• Prepare quantity and cost calculations for variation orders.
• Evaluate additional works, omitted works, and changes in scope.
• Prepare supporting documents and cost breakdowns for claims.
• Review subcontractor variation claims and validate quantities and rates.
• Assist in negotiating variations and commercial claims with clients, consultants, and subcontractors.

7. Procurement & Subcontract Management

• Coordinate with Procurement regarding required plumbing materials and equipment.
• Provide quantity and cost information for purchasing activities.
• Evaluate supplier and subcontractor quotations.
• Monitor subcontractor accounts and contract values.
• Assist in preparing subcontract agreements, purchase orders, and commercial documentation.
• Monitor subcontractor performance against agreed scope and commercial terms.

8. Contract & Documentation

• Review contract conditions, specifications, drawings, and commercial requirements.
• Maintain accurate records of BOQs, estimates, variations, claims, billings, and supporting documents.
• Ensure proper documentation of quantity measurements and cost calculations.
• Assist in final account preparation and project close-out.
• Maintain organized commercial records for audit and management review.

9. Coordination

• Coordinate closely with Project Managers, Project Engineers, Plumbing Engineers, Site Engineers, Procurement, Accounting, and other project personnel.
• Work with consultants and clients to resolve quantity and commercial discrepancies.
• Coordinate with the construction team to ensure measured quantities reflect actual site progress.
• Provide commercial and cost-related advice to project management.

Qualifications

• Bachelor's Degree in Mechanical Engineering or a related field.
• With relevant experience as a Quantity Surveyor specializing in Plumbing/MEP works.
• Preferably with construction industry experience, particularly in building, infrastructure, or commercial projects.
• Strong knowledge of DUPA (Detailed Unit Price Analysis) and construction cost estimation.
• Proficient in plumbing quantity take-off and measurement.
• Knowledgeable in plumbing materials, fittings, fixtures, piping systems, and installation methods.
• Knowledgeable in BOQ preparation, cost estimation, progress billing, variation orders, and claims.
• Strong understanding of construction drawings, specifications, and contract documents.
• Proficient in Microsoft Excel and quantity surveying/cost estimation tools.
• Knowledge of AutoCAD is an advantage.
• Strong analytical, numerical, and problem-solving skills.
• Excellent attention to detail and accuracy.
• Good communication, coordination, negotiation, and documentation skills.
• Able to work under pressure and meet project deadlines.
• Willing to conduct site visits and work in project locations as required.

Preferred Experience

• Experience handling Plumbing / Sanitary / Water Supply / Drainage / Fire Protection-related quantities is highly preferred.
• Experience in preparing DUPA-based unit rates and cost estimates.
• Experience handling subcontractor billing and evaluation.
• Experience in variation orders, claims, and final accounts.
• Experience working with contractors, consultants, and clients in construction projects.

Core Competencies

• Plumbing Quantity Take-Off
• Quantity Measurement
• DUPA & Unit Rate Analysis
• Cost Estimation
• BOQ Preparation
• Cost Control
• Progress Billing
• Variation Order Evaluation
• Claims & Final Accounts
• Subcontractor Management
• Construction Drawing Interpretation
• Excel & Cost Management
• Commercial Negotiation
• Attention to Detail

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