“With your experience, diligence, professionalism and personal determination we achieved a successful settlement.“

Mike Carroll

Mouchel Infrastructure Services

A Leading Construction Dispute Resolution Consultancy

If you would like a no obligation consultation about any issues you may have, please call

01733 568687. Alternatively e-mail your query to

Brant Associates Ltd | Head Office: Unit 8a Opus, Cygnet Park, Hampton, Peterborough, PE7 8HP |

© Brant Associates Ltd 2018

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Services for Contractors

Preparation of Extension of Time Claims

Brant Associates is highly experienced in the preparation of Extension of Time Claims. Whether required for defending delay costs or promoting delay and disruption claims it is essential that the claim is produced to the highest standard permissible by the level of information available. Any Claim will be produced in line with the Society of Construction Law Delay and Disruption Protocol.

Whilst we feel that it is preferable for us to obtain the raw data and then with input from our clients to formulate the EOT claim from scratch, we understand that this can be a time consuming and therefore costly exercise. We can therefore reduce our involvement by providing guidance to our Clients so that some of the activities can be carried out by our Client’s own resources, therefore reducing the costs.

Elements to be addressed in an EOT claim


All extension of time claims should address the following:-

Types of delay analysis

The delay analysis element noted above can be carried out in a number of formats, including the following:-


As-planned v as-built-  

Graphical comparison between what should have happened and what did happen. Often used as a first step when using the other methods.  This may not be sufficient to determine which factors actually caused the problem to be delayed.  Also some delays may cause individual tasks to take longer but don’t affect the critical path.

As-planned impacted -  

Adds or impacts changes onto a planned programme.  The programme is moved on (or back) as it is affected by each event.  This is probably the most popular of the critical path analysis methods.

Collapsed as-built-

To an extent the reverse of the above, events are removed from the as-built programme, producing a programme which shows what would have happened if the delay events had not happened.

Windows analysis-

A review of progress at certain periods of time.  Data is compiled about the progress in each window of time.  Delays are then identified and explained.

Time impact analysis-

Similar to the windows analysis except the timing and duration of the delay event forms the window period of analysis.