When should I call for a rough-in inspection?
What rough-in means
Rough-in refers to the stage when pipes, wires, and ducts are installed but not yet hidden by finish materials. Inspectors check that the work is secured, properly routed, and meets clearance rules. The exact list depends on the trades involved.
Some projects have separate rough-in inspections for electrical, plumbing, and mechanical work. Each one may be scheduled on its own.
Making sure the work is ready
Before calling, walk the area and confirm all connections are in place, labeled, and accessible. Check that boxes are secured, pipes are supported, and penetrations are sealed as required. A quick self-check can save a failed visit.
Keep the inspection request consistent with the permit stage. Calling too early means the inspector may not be able to pass the work.
- Wiring is routed and boxes are secured
- Pipes are supported and pressure tests are complete, if required
- Penetrations are sealed as the plans specify
Timing with other trades
Coordinate the rough-in call with the other trades so the inspector can see everything at once. If one trade is delayed, ask whether the department allows a partial inspection. Schedules slip more often than expected.
Plan to keep the area open until the inspector approves the work. Insulation or drywall should wait until the sign-off is in hand.
Common mistakes
- Covering walls before the rough-in approval
- Calling for inspection while one trade is still incomplete
- Assuming a verbal pass is enough without written approval
