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Why rough-in inspections fail, and the five things inspectors check first

A failed rough-in costs the whole job a week. Here is what Valley inspectors look at first and how we keep our first-pass rate at 97%.

Ray Delgado, Owner, Master Electrician · May 13, 2025 · 4 min read

A rough-in inspection takes the inspector twenty minutes. A failed one costs the schedule a week: the re-inspection has to be scheduled, drywall waits, and everyone behind drywall waits with it. These are the five things we see fail most often on other people's jobs.

  • Box fill. Too many conductors in a box, or a box that is too shallow for the device. The inspector counts.
  • Support and securing. Cable or conduit not supported within the required distance of the box, or not at the required intervals.
  • Working clearance. A panel location that is going to end up behind a door swing or a sink. This is a drawing problem caught in the field, which is why the foreman reads the architectural set.
  • Labeling of home runs. Unlabeled conductors in a panel make the inspector nervous and make the final take longer.
  • Grounding and bonding. Missing bonding jumpers at metal boxes, or an isolated-ground circuit that is not actually isolated.

How we keep the rate up

The foreman walks the rough with a checklist the day before the inspection and fixes anything on it. It takes an hour. The inspection passes and drywall starts on the day it was scheduled.

Next step

Send us the drawings.

Ray or a project manager replies the same business day with a date for the number.

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