Stone, Countertops & Engineered Surfaces worked example
Field Rework Cost at 14% visits needing a rework return trip: a worked example
What does the result look like when visits needing a rework return trip reaches 14%? The full calculation is worked below with real intermediate numbers. A service manager forecasting the cost of return visits to correct countertop field issues.
The inputs for this scenario
- Total install site visits: 60 visits (unchanged)
- Install crew cost per site visit: 320 $/visit (unchanged)
- Visits needing a rework return trip: 14 % (raised for this scenario; the documented default is 12)
- Crew mobilization charge: 400 $ (unchanged)
Working through the calculation
- Applying the documented formula (Field rework $ = visits x crew cost per visit x rework rate% + mobilization charge) to the inputs above produces each figure below.
- At this operating point the engine returns 3,088 $ for total field rework cost, the number this scenario is built around.
- At this operating point the engine returns 51.47 $ / piece for field rework cost per unit.
- At this operating point the engine returns 2,688 $ for variable field rework cost.
- At this operating point the engine returns 400 $ for fixed field rework cost adder.
How this compares with the baseline
- Against the tool's baseline example, where visits needing a rework return trip sits at 12% and the headline result is 2,704 $, this scenario comes in 14.2% above the baseline at 3,088 $.
- A figure at this level is achievable when visits needing a rework return trip is genuinely sustained, not just peaked for a shift. It uses a single average crew cost and rework rate, so it won't distinguish a cheap re-caulk from a full tear-out and refabrication that costs many times more.
Results at a glance
- Total field rework cost: 3,088 $ (headline result)
- Field rework cost per unit: 51.47 $ / piece
- Variable field rework cost: 2,688 $
- Fixed field rework cost adder: 400 $
Run it with your numbers
- Every input above is editable in the live Field Rework Cost calculator, which recalculates instantly and can be shared with the inputs intact.
Last reviewed 2026-05-12.