Building inspector with checklist

Once a building permit is issued, building services provides inspections to ensure compliance with the Ontario Building Code and relevant by-laws. Inspections help to ensure that construction is completed in accordance with the approved plans.

Request an inspection

Please book an inspection at least one to two business days in advance of your desired inspection date. Inspections take place between 8:30 a.m. and 4:00 p.m. Monday to Friday.

Book an inspection

You can also call to request an inspection at 905-885-2431. You will need to provide the following information: 

  • Building permit number or address
  • Contact name and phone number
  • Inspection type

If work is being carried out by a contractor, it is the responsibility of the property owner to ensure that the contractor calls for all necessary inspections. Ensure inspection approvals are granted prior to carrying out the next phase of construction.

Important Notice
Failure to have a completed and approved inspection may result in having to uncover and expose work for inspection.

Inspection checklists

Additional inspections to the ones listed below may be required depending on the complexity of your project.

Residential

  • Readiness to construct footing
  • Damp proofing layer
  • Drainage layer prior to backfill
  • Structural framing
  • HVAC/hydronic heating rough-in
  • Plumbing rough-in under slab
  • Plumbing rough-in above slab
  • Insulation and vapor barrier
  • Occupancy
  • Plumbing Final
  • Grading
  • Final Inspection

Finished basements, additions or renovations

  • Readiness to construct footing
  • Damp proofing layer
  • Drainage layer prior to backfill
  • Structural framing
  • HVAC/hydronic heating rough-in
  • Plumbing rough-in under slab
  • Plumbing rough-in above slab
  • Insulation and vapor barrier
  • Occupancy
  • Plumbing Final
  • Grading
  • Final Inspection

Accessory building

  • Readiness to construct footing
  • Damp proofing layer
  • Basement poly before slab is poured
  • Insulation frost wall
  • Insulation slab
  • Drainage layer prior to backfill
  • Structural framing
  • HVAC/hydronic heating rough-in
  • Plumbing rough-in under slab
  • Plumbing rough-in above slab
  • Insulation and vapor barrier
  • Occupancy
  • Plumbing Final
  • Grading
  • Final Inspection

Decks

  • Footings
  • Structural framing
  • Final

Pools

  • Deck/porch final
  • pool (prior to filling)
  • Occupancy
  • Final

 Industrial, commercial, or institutional

  • Readiness to construct footing
  • Damp proofing layer
  • Drainage layer prior to backfill
  • Structural framing
  • HVAC/hydronic heating rough-in
  • Kitchen exhaust system
  • Fire suppression system
  • Plumbing rough-in under slab
  • Plumbing rough-in above slab
  • WETT inspection for solid burning appliances
  • Insulation and vapor barrier
  • Fire separations, closures and fire stopping
  • Sprinkler and standpipe systems
  • Occupancy
  • Plumbing Final
  • Grading
  • Final Inspection

Electrical Inspection

If your project includes electrical work, you will need to contact the Electrical Safety Authority in order to book an electrical inspection.

Septic Inspection

If your project includes septic system work, you will need to contact Northumberland County in order to book a septic system inspection.