When a construction project goes wrong due to defective plans, slow RFI responses, or owner interference, the financial pain can be severe and very real.
Costs pile up quickly, and contractors are often left with a strong sense they have been wronged by the other party’s failures on the project.
However, courts do not award damages based on feelings alone, no matter how justified that sense of grievance might be for the affected contractor.
Contract damages are designed to put the non-breaching party in the position it would have occupied had the contract actually been performed as agreed.
Two legal gates control whether a contractor can recover: the loss must flow directly from the breach through causation, and the amount claimed must be shown with reasonable certainty.
Mathematical precision is not required, but any estimate must rest on an objective foundation in facts, figures, or data rather than pure guesswork or speculation.
Contractors must also review their contracts carefully first, because waivers of consequential damages, no-damages-for-delay clauses, or liability caps can limit or even eliminate recovery before proof begins.
Two widely used methods illustrate how these legal gates work in practice when contractors pursue disruption or delay claims.
The measured mile method, which compares actual productivity during unimpacted periods against disrupted ones, is often favoured because it relies on the contractor’s own real performance data.
The total cost method, calculated as total costs minus the original bid, is treated as a last resort by many courts, including the Federal Circuit, due to its broad assumptions.
A modified total cost approach that adjusts for a contractor’s own contributions to cost overruns can improve the likelihood of a successful recovery in court.
An expert witness is not always required, and straightforward lost-profits claims can sometimes rest on a knowledgeable company officer’s testimony backed by objective records.
More complex analyses such as the measured mile method will typically require a specialised expert opinion to satisfy the court’s evidentiary standards.
Ultimately, any construction damages claim is only as strong as the underlying records built during the project, not assembled after the dispute has already arisen.
Accurate bids, contemporaneous daily reports, schedules, cost data, and clear links between specific impacts and specific costs are what separate a recoverable claim from mere speculation.

