Cost Estimating, Bid Pricing & Cost Engineering

Cost engineering should begin before the tender team starts collecting quotations. The estimate has to reflect the contractual scope, technical specification, construction method, programme, logistics concept and financing structure that the bidder is actually committing to.

The service is particularly valuable for large infrastructure, industrial, EPC and remeasurement tenders where a material pricing error can arise from quantity uncertainty, incomplete scope transfer, temporary works, logistics, customs, escalation, FX, guarantee costs or unrealistic productivity assumptions rather than from the quoted price of major materials alone.

Gokbilge structures the estimate from the work breakdown and cost breakdown upward. BOQ items, quantities, drawings, specifications, method of measurement and construction methodology are reconciled before unit rates are finalized.

Direct costs are built from labour, plant, material, subcontract and production assumptions. Site preliminaries and indirects are then linked to the execution programme, site establishment, supervision, temporary facilities, temporary works, testing, quality, HSE, security, utilities, accommodation and project-management requirements.

For international tenders, the ex-works or local construction price is only one layer of the final bid. Landed logistics cost, freight validity, duties, customs handling, origin constraints, permits, bonds, insurance, exchange-rate exposure, escalation and working-capital requirements are modelled separately so their effect is visible to management.

The cost model can also separate local and foreign currency exposure, imported and locally sourced content, cash-margin requirements, payment timing and negative cash-flow periods. This avoids hiding financing or country exposure inside construction unit rates.

Contingency is not treated as an unexplained percentage. Identified risks are recorded by cause, probability, range of cost impact, schedule consequence, mitigation action and residual exposure. Where useful, scenario-based or sensitivity analyses are used to show management how the price changes under adverse assumptions.

The estimate is then reconciled through formal review gates. Base cost, identified risk allowance, contingency, financing effects, overhead and profit are kept visible so management can approve a price with a clear understanding of what is included and what remains exposed.

The deliverable is not just one final number. Gokbilge can provide a controlled estimating package that can be handed from the bid team to the project team if the contract is awarded.

The client receives a price that can be explained, challenged and updated rather than a collection of disconnected quotations. The same cost structure can then support post-award budget control, procurement decisions and commercial forecasting.

Gokbilge provides engineering, estimating and project-control support. Tax opinions, regulated financial advice and formal legal interpretations remain with the relevant licensed specialists.