A JCT contract is a standard UK construction contract that defines roles, responsibilities, payment processes, and how changes and delays are managed on a project.
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A JCT contract is a standard UK construction contract that defines roles, responsibilities, payment processes, and how changes and delays are managed on a project.
The most commonly used JCT families are Standard Building, Design and Build, Intermediate, and Minor Works — each suited to different project sizes and levels of complexity.
Standard Building suits larger, design-led projects. Design and Build works best when the contractor takes on design responsibility. Intermediate is for mid-range jobs, and Minor Works fits small, simple projects.
JCT requires an up-to-date programme and lists events that can justify extra time. If delays aren’t recorded and notified properly, the contractor risks missing extensions of time and facing liquidated damages.
Payments follow a cycle: the contractor submits an application, a payment notice is issued, and the payer may issue a pay-less notice if needed. Timelines and notices are critical for cashflow.
Variations should be instructed and valued formally, but many start informally on site. If they aren’t tracked and agreed quickly, they can escalate into commercial disputes and margin loss.
Spreadsheets scatter contract sums, variations, costs and approvals across multiple files, making it hard to keep a single reliable record or to track the live financial position of a project.
Software centralises contract sums, variations, payment applications and approvals, giving you a structured audit trail and clearer control over JCT admin and project finances.
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