What is a rough-in inspection and when is it needed?

A rough-in inspection in Ottawa is a mandatory building inspection that occurs after the "rough" installation of electrical, plumbing, and HVAC systems but before drywall or finishing materials are installed. This critical inspection ensures all hidden infrastructure meets Ontario Building Code requirements before it gets covered up.

When Rough-In Inspections Are Required in Ottawa

The City of Ottawa requires rough-in inspections for virtually any project involving electrical, plumbing, or HVAC work - from simple bathroom renovations to full home additions. You'll need this inspection when:

Your contractor has completed the installation of wiring, pipes, and ductwork but before any insulation or drywall goes up. This timing is crucial because once walls are closed up, inspectors can't verify that the work meets code requirements.

For electrical work specifically, you'll also need an ESA (Electrical Safety Authority) rough-in inspection in addition to the City's inspection. The ESA inspector focuses solely on electrical safety and code compliance, while the City inspector looks at the overall building code compliance including structural, plumbing, and HVAC elements.

The Ottawa Rough-In Inspection Process

Contact the City of Ottawa Building Code Services at 613-580-2424 to schedule your inspection once your contractor confirms the rough-in work is complete. You'll typically need 24-48 hours notice, and inspections are usually conducted during business hours Monday through Friday.

The inspection fee is included in your building permit cost, but failed inspections that require re-inspection will incur additional fees of approximately $100-150. Your contractor should be present during the inspection to answer technical questions and address any issues that arise.

What Inspectors Look For

During a rough-in inspection in Ottawa, inspectors verify that electrical outlets, switches, and fixtures are properly located and wired according to the Ontario Electrical Safety Code. They check that plumbing rough-ins have proper slope, venting, and support, and that HVAC ductwork is properly sized and supported.

Structural elements like framing modifications, beam installations, and foundation work are also scrutinized to ensure they match approved plans and meet Ontario Building Code requirements.

Red Flags and Protection Tips

Never allow your contractor to install drywall or insulation before passing rough-in inspection - this is a major red flag indicating they're either inexperienced or trying to hide substandard work. Legitimate contractors in Ottawa know that rough-in inspection is mandatory and will build this timeline into their project schedule.

If your contractor suggests skipping inspections or claims they're "not necessary for small jobs," find a different contractor immediately. All electrical work in Ontario requires ESA permits and inspections, regardless of project size.

After the Inspection

Once you pass rough-in inspection, you'll receive approval to proceed with insulation and drywall. The inspector will provide a report noting any deficiencies that must be corrected before final inspection. Keep this documentation as part of your project records.

For electrical work, you'll need both the City's rough-in approval and ESA's electrical rough-in approval before proceeding. Your electrical contractor can coordinate both inspections, but make sure both agencies have signed off before closing up walls.

Contact the City of Ottawa Building Code Services at 613-580-2424 or visit ottawa.ca/building for current inspection scheduling and requirements. For ESA electrical inspections, your licensed electrical contractor will coordinate directly with ESA through their online portal.