Construction Problem Center

Common Causes of Contractor Disputes — and How to Avoid Them

Most contractor disputes trace back to unclear scope, verbal agreements, or payments not tied to verified progress.

Common causes

  • No written contract, or a contract with vague scope of works
  • Payments made ahead of verified, measured progress
  • Variations agreed verbally with no record of cost impact
  • Different expectations on quality or finishes never documented
  • No independent party (quantity surveyor / engineer) certifying progress

When to get a professional assessment

  • Contractor requesting large payments before matching progress on site
  • Disagreement over quantities or work already claimed as complete
  • Verbal-only variations with no documented cost

This information is general guidance for planning purposes and is not a substitute for an in-person professional assessment. Every building and site is different — a TEKEEY engineer can confirm the actual cause and recommend next steps.

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