Permits & Inspections in Ontario – What You Need to Know in 2025
If you're planning a construction or renovation project in Ontario, understanding the building permit and inspection process is essential. In 2025, the Ontario Building Code continues to guide how residential, commercial, and structural work is approved — and inspections are more detailed than ever.
At Quinte Custom Homes, we take the hassle out of permits and inspections. With over 16 years of experience navigating Ontario’s building regulations, we handle all permit applications and ensure your project meets or exceeds inspection requirements.
✅ Do You Need a Building Permit?
- Building a new home, garage, or shed larger than 160 sq. ft.
- Adding a home addition or second story
- Making structural changes to interior or exterior walls
- Installing or replacing decks over 2 feet above ground
- Plumbing system changes (in many cases)
- Demolitions, excavations, and foundations
- Finishing a basement where rooms or plumbing are added
We deliver exceptional construction services backed by years of experience. Our skilled team prioritizes quality, transparency, and client satisfaction. We utilize innovative techniques and sustainable practices, ensuring timely project completion. Trust us to bring your to life with unmatched craftsmanship
What Happens During an Inspection?
Once your permit is approved, municipal building inspectors will check specific stages of your project. These inspections ensure safety, code compliance, and quality of workmanship. Typical inspection stages include:
- Excavation & Foundation – Footings and framing
- Framing & Structural – Prior to insulation or drywall
- Electrical, Plumbing, HVAC Rough-Ins – Coordination with licensed trades
- Insulation & Vapour Barriers – For energy code compliance
- Final Inspection – Required before occupancy or use
Skipping an inspection or failing to follow approved plans can result in costly delays, fines, or mandatory reconstruction. That’s why we always coordinate and attend inspections with local officials.
Commonly Asked Questions
What stages of construction require a building inspection?
Key stages that require municipal building inspections include excavation and foundation work, framing and structural components, and mechanical rough-ins like electrical, plumbing, and HVAC systems. Inspectors also review insulation and vapour barriers for energy code compliance and conduct a final inspection before the home can be occupied. These checkpoints ensure your project meets local building codes and safety standards.
Why are building inspections important during construction?
Building inspections are essential to confirm code compliance, structural safety, and quality workmanship. Skipping inspections or deviating from approved plans can lead to costly delays, fines, or required reconstruction. We proactively coordinate with local inspectors and attend all scheduled visits to ensure every phase of your project is approved and on track.
Who handles inspections and permits during my construction project?
We take care of the entire inspection and permitting process for you. Once your permit is approved, we schedule and attend all required inspections alongside municipal building officials. Our team works closely with licensed electricians, plumbers, and HVAC professionals to ensure all rough-ins meet code before moving to the next stage of your build.