Everything Strathead said......
Another estimator? Do you think a PM should review the estimate and if so why? I heard that some shops wont give the PM the estimate.
That's nuts if true.
Not only should you get the estimate from him, you should have at least one pre-construction meeting with the estimator after YOU review all contracts, specs, plans, addendums, value engineering items accepted, etc.
THE ESTIMATOR should provide you a breakdown of materials and labor hours in each cost category like Strathead outlined...
Mobilization temporary and demolition
Underground
Raceways, fittings and boxes
Wire, cable and conductors
Lighting Fixtures
Distribution Equipment
Wiring Devices and Trim
Fire Alarm
Lightning Protection
Other Unique and/or special systems.
In any company I have ever worked for, these breakdowns are entered into their system for job tracking.
Does your company not do this????