The job used more hours than you allowed. Where did they go?

The job took longer than you allowed
Your estimate allowed one amount of labour, but the time record shows substantially more. The price did not increase to match it. Before concluding that the crew worked too slowly, check whether the original allowance and the completed work describe the same job.
Different scope, interrupted access, repeat visits and an optimistic estimate can all affect the comparison. A useful review separates those possibilities. It should produce something specific to change in the next estimate or programme, without treating a labour-hours variance as proof that an individual caused the loss.
Start with one work stage
Choose a stage with a reasonably clear start and finish, such as preparing an area or installing a defined section. Put the estimate beside the drawings, daily records and actual hours. Confirm whether the hours represent the whole crew or only one person's time.
Separate the original work from later changes where the records allow. If the scope cannot be reconciled, write down what is missing. Comparing unlike quantities can make a productivity result look better or worse without telling you anything reliable about how the work was performed.
Explain the additional hours
Discuss the record with the supervisor and team while the sequence is still clear. Distinguish productive work, waiting, setup, travel and rework where those categories are meaningful. Avoid forcing every hour into an explanation when the information does not support that level of detail.
Check whether the estimate assumed conditions that did not exist. Perhaps the work area was unavailable, deliveries arrived separately or the planned sequence changed. Those observations can improve planning. They do not automatically create a contractual right to additional payment or establish who bears the cost.
Translate hours into a consistent costing
Use a labour cost basis that is understood and applied consistently. If the rate already includes particular employment costs or overhead allocations, do not add them again. Keep actual expenditure and internal planning allowances distinguishable so the result can be reconciled with the job accounts.
More hours do not always translate into a simple proportional increase in every cost. Check the actual arrangements before reporting a cash effect. If the review raises questions about pay or employment obligations, obtain appropriate advice rather than changing those arrangements to make a costing target work.
Keep the original estimate as well as the revised allowance. Without that starting point, later changes can make it difficult to see whether a better result came from improved delivery or simply a larger budget.
Change an assumption you can test
For the next comparable job, adjust the assumption that the evidence challenged. That might mean a different work sequence, an explicit setup allowance or a better check of site access before scheduling a crew. Record the reason for the change and compare the result afterwards.
Today, complete that review for one stage rather than trying to repair every historical time sheet. Agree who will record the key information on the next project. If labour overruns are reducing the business's ability to meet its commitments, contact CRP about turnaround support with the estimate, hours summary and current financial position. Keep any disputed contractual or employment issue clearly identified for the appropriate professional.