Skip to content
Cost control made easy for UK subcontractors A subsidiary service of QS and Estimating Consultants Ltd (opens in a new tab)
Start a QS retainer

QS tool 08

Prolongation & Site Preliminaries Calculator

Estimate time-related site costs for a delay using weekly management, welfare, hire, utilities, insurance and other preliminaries.

Best used for: Use this for time-related site overhead caused by delay. It is not a daywork or trade-rate build-up.

Calculated in this browser. Nothing is saved by this tool.

Ongoing QS control

Send us the application, variation, subcontract or final account. We will tell you what needs doing first and what it will cost for us to help.

Discuss a monthly retainer