
Extension of time and delay cost claims
An extension of time is won with a notice on time, records kept every day and a programme that shows the effect.
Under FIDIC the Contractor is entitled to an extension of time only for the causes listed in Sub-Clause 8.5 (8.4 in the 1999 edition), and only if the claim is notified in time under Clause 20. Most extension of time claims fail not on the merits, but because the notice was late, the records were thin or the programme could not show how the event delayed completion.
We start from your notices and records, tie each delay event to the activities it affected in the updated programme, and prepare the submission: the event, the clause that gives the entitlement, the delay to completion, the extra cost of the longer period and the records that prove them. For the Engineer or the Employer we assess the Contractor's claim the same way and draft the response or the determination.
What we prepare
- Delay notices and early warnings
- Delay event register linked to notices and site records
- Updated programme showing the effect of each delay event, in Primavera P6 or MS Project
- Extension of time submission: narrative, entitlement, delay to completion and supporting records
- Prolongation cost: site overheads, staff and equipment for the extended period, from your cost records
- For the Engineer: assessment of the Contractor's claim and a draft determination
How we work on it
Notice before analysis
We check the time bars first. An analysis built on a late notice protects nothing.
Records that match the programme
Site diaries, letters and progress data are tied to the programme activities they prove.
Honest about the evidence
Before work starts we tell you what your records can support, so time is not spent on a claim that cannot stand.
When clients call us
Typical situations where this service saves time, money or entitlement.
- A delay event happened weeks ago and no notice has been sent.
- The Engineer asks for a programme that shows the effect of the delay.
- Completion is near and liquidated damages are being discussed.
- The Contractor's extension of time claim has arrived and must be assessed.
Questions
Do you prepare expert delay reports for arbitration?
No. We prepare the extension of time submission and the records behind it during the project. For an expert report in arbitration you need an independent delay expert; we can prepare the chronology and the file for them.
Can you help with a claim that is already late?
Yes. We first check which notices were sent and when, and tell you plainly what can still be protected.
Related services

Need this on your project?
Send us the contract and a short note. We reply with a proposal.
No obligation. Tell us the contract and the problem; we tell you honestly whether we can help.
info@notaconsultants.com