The Low Spot Appears Two Winters After Closeout
Fill settles and lots pond on a delay measured in seasons, so the call comes after the retention is collected and spent and the job file is closed.
The product this trade sells is buried or paved over before anyone can judge it. Other trades' defects are visible at the walkthrough, while a compaction defect needs a weather event to reveal itself, and by then the job carries no revenue to absorb the fix. The money to correct it comes out of a year that had nothing to do with the job. That's why the repair never reads as a job cost at all.
The size of it
A single 40 by 40 ponding fix under asphalt runs $10K to $25K against a job with zero remaining revenue. The cost sits in overhead, never gets coded back to the job, and the estimator prices the next parking lot the same way he priced this one.
Grading defects are seasonal, and the season comes long after the job is closed. Settlement, birdbaths in a paved lot, and slope erosion typically surface 6 to 18 months out, after a winter of frost heave or the first heavy wet season. The claim comes back to you because the finished surface is yours, and defending it means producing density records and as-built grade shots from two years back. The repair gets priced at another trade's rate, since fixing grade under asphalt means saw cut, remove, recompact, and replace pavement you never installed. On top of that the Notice of Termination waits on final stabilization, which the permit defines as 70% perennial vegetative cover, so a November finish up north means reseeding until spring green-up.
Three moves, in order
Step 03: Overhead calculation
What indirect cost really comes to at your size, and the rate your estimating template should be carrying.
What else costs grading contractors money
The same mechanism in other trades
What grading owners ask
Who pays for a low spot in a parking lot after the job closed?
Fill settles and lots pond on a delay measured in seasons, so the call comes after the retention is collected and spent and the job file is closed.
What does it cost?
A single 40 by 40 ponding fix under asphalt runs $10K to $25K against a job with zero remaining revenue. The cost sits in overhead, never gets coded back to the job, and the estimator prices the next parking lot the same way he priced this one.
What do I do first?
Keep density reports, proof roll signoffs, and as-built grade files together by job in one place you can retrieve in ten minutes, and hold them for at least three years.
What are grading contractors supposed to be making?
Grading runs 18% gross margin, 16% overhead and 2% net profit before taxes at $1M–$5M. The all-trade average is 7%, so this trade sits 5 points below it. The CFOS target is 10%.
Which part of the system fixes it?
The step is number 03, overhead calculation. What indirect cost really comes to at your size, and the rate your estimating template should be carrying. It comes from chapter 3 of CONTROL: The Construction Financial Operating System.
Josh Luebker ran commercial construction projects before he ran the numbers behind them, on data centres, military bases, hospitals, and high-rises. He wrote CONTROL: The Construction Financial Operating System, which is an eight-step framework for commercial subcontractors, and it publishes on October 1, 2026. He is a master electrician who moved into the office and kept the field vocabulary.
Sulphur Prairie Operations LLC maintains the benchmark reference behind these figures. Every edition is reconciled against the newest CFMA survey release before it publishes here. Where a figure changes between editions, the older edition keeps its year in the title so a citation to it stays correct.