Construction inspections are a mandatory and critical part of every building project in Ontario. Whether you are a homeowner, builder, or contractor — failing to schedule required inspections at the right stages of construction can result in stop-work orders, failed permits, costly rework, and significant project delays. At ITI Permit, we provide comprehensive construction inspection services — from mandatory Ontario Building Code inspections and builder inspection preparation to commercial inspections, pre-purchase inspections, and full remediation support when inspections fail. We serve homeowners, builders, contractors, and developers across Hamilton, Toronto, Mississauga, Brampton, Oakville, Niagara Falls, Stoney Creek, Waterdown, and throughout Ontario — trusted since 2012.
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Construction inspections are official reviews conducted at mandatory stages of a building project to verify that work has been completed in accordance with approved permit drawings and the Ontario Building Code. Under the Ontario Building Code Act, builders are legally required to notify the Chief Building Official and schedule inspections at each critical stage of construction.
Failing to schedule mandatory construction inspections in Ontario can result in:
ITI Permit helps homeowners, builders, and contractors navigate the full construction inspection process — preparing for inspections, coordinating with municipal building officials, and resolving any issues that arise.
The foundation inspection is one of the first mandatory inspections in Ontario. It verifies that the foundation has been constructed in accordance with approved drawings and Ontario Building Code requirements — including dimensions, depth, waterproofing, and drainage. Getting the foundation inspection right sets the entire project up for success.
The framing inspection reviews the structural framework of the building — including floor systems, wall framing, roof structure, load-bearing elements, and fire blocking. This inspection must be completed before insulation or drywall is installed. ITI Permit helps builders prepare all framing documentation to ensure this inspection passes the first time.
The pre-drywall inspection is a critical stage that reviews all systems installed inside the wall cavities — including rough-in plumbing, electrical, HVAC, and insulation — before drywall is applied. Once drywall is up, all of this work is hidden. ITI Permit coordinates pre-drywall inspection readiness so nothing gets covered before it passes.
The plumbing rough-in inspection verifies that all drain, waste, vent, and supply piping has been correctly installed in accordance with Ontario Building Code requirements — before walls are closed. Our team helps builders ensure all plumbing rough-in work is inspection-ready and properly documented.
Electrical rough-in inspections verify that all wiring, panel work, and electrical rough-in installations meet Ontario Building Code and Electrical Safety Authority (ESA) standards before walls are closed. We help builders prepare for electrical inspections and coordinate with ESA and municipal inspectors as required.
The insulation inspection verifies that insulation has been installed correctly — meeting Ontario Building Code requirements for thermal performance, vapour barriers, and fire protection. This inspection must be passed before drywall installation proceeds.
The final inspection is the last mandatory construction inspection before a building can be occupied. It verifies that all work has been completed in accordance with the approved permit drawings, Ontario Building Code requirements, and all conditions of the building permit. ITI Permit helps builders prepare a complete final inspection package — ensuring nothing is missed.
Before a new building or renovated space can be legally occupied in Ontario, an occupancy inspection must be completed and passed. We assist homeowners and builders in preparing for occupancy inspections — reviewing all outstanding permit conditions and ensuring the building is ready for occupancy approval.
Before purchasing a property in Ontario, a professional pre-purchase building inspection is one of the smartest investments you can make. ITI Permit provides pre-purchase building inspections — evaluating the structural condition, building systems, permit history, and code compliance of a property before you commit to buying.
Commercial construction projects in Ontario are subject to more complex inspection requirements than residential buildings — including fire code compliance inspections, occupancy load reviews, accessibility compliance checks, and mechanical system inspections. ITI Permit provides commercial construction inspection services for offices, retail spaces, restaurants, industrial facilities, and all other commercial project types.
One of the most valuable services ITI Permit provides is pre-inspection preparation for builders and contractors. Before any mandatory inspection, our team reviews your drawings, construction work, and permit conditions to identify any issues — giving you the opportunity to resolve them before the inspector arrives and avoiding costly failed inspections.
If a construction inspection fails in Ontario, work cannot proceed until the issues are resolved and the inspection is passed. ITI Permit provides full remediation support — reviewing the inspector’s comments, identifying the required corrections, updating drawings if necessary, and coordinating the re-inspection process to get your project back on track as quickly as possible.
Under the Ontario Building Code, builders must notify the municipality and schedule inspections at the following mandatory stages:
| Inspection Stage | When Required |
| Foundation | After excavation, before pouring concrete |
| Framing | After framing complete, before insulation/drywall |
| Plumbing Rough-In | After rough-in piping, before walls closed |
| Electrical Rough-In | After wiring installed, before walls closed |
| Insulation | After insulation installed, before drywall |
| Pre-Drywall | Before drywall installation begins |
| Final | After all work complete, before occupancy |
| Occupancy | Before building is legally occupied |
Important: You must give the municipality a minimum of 2 business days notice before each required inspection. Missing or skipping inspections can require you to uncover completed work at your own expense.
From foundation to final occupancy inspection, ITI Permit covers all mandatory and optional construction inspection stages for both residential and commercial projects across Ontario.
Our pre-inspection review service helps builders and contractors identify and resolve issues before the municipal inspector arrives — reducing failed inspections, costly rework, and project delays.
If an inspection fails, ITI Permit provides full remediation support — from reviewing inspector comments to coordinating corrections and managing the re-inspection process.
Buying a property? Our pre-purchase building inspections give you an independent, professional assessment of the property’s condition, permit history, and code compliance — before you commit.
Our team’s deep knowledge of the Ontario Building Code means we know exactly what municipal inspectors are looking for at each stage — giving our clients a significant advantage in passing inspections efficiently.
Over a decade of experience supporting construction inspection processes across all Ontario municipalities. We know how inspectors work, what they check, and how to keep your project moving forward.
Professional construction inspection services at the most economical rates in Ontario. Transparent quotes, no hidden fees.
We have a real physical office where you can walk in, meet our team, and discuss your inspection needs face to face.
Fast responses, proactive scheduling support, and zero unnecessary delays — keeping your construction timeline on track.
Step 1 – Free Consultation We review your project, permit status, construction stage, and inspection requirements. You receive a clear, transparent quote with no hidden costs.
Step 2 – Pre-Inspection Preparation We review your approved drawings, construction work, and permit conditions before each mandatory inspection — identifying any issues and helping you resolve them before the inspector arrives.
Step 3 – Inspection Coordination We coordinate inspection scheduling with your municipality — ensuring notices are submitted on time and the right inspection is booked at the right stage of construction.
Step 4 – Inspection Support Our team is available to support you during the inspection process — answering technical questions, liaising with building officials, and ensuring the inspection proceeds smoothly.
Step 5 – Remediation (If Required) If an inspection identifies deficiencies, we review the comments, determine the required corrections, update drawings if necessary, and coordinate the re-inspection until the stage is passed.
Step 6 – Final Inspection & Occupancy We prepare your complete final inspection package and help you achieve occupancy approval — closing your permit cleanly and protecting your property’s value and legal standing.
We provide construction inspection services in:
A builder inspection is a mandatory review conducted by a municipal building inspector at critical stages of construction to verify that work complies with the approved permit drawings and Ontario Building Code. Builders must schedule these inspections at each required stage — failing to do so can result in stop-work orders and costly project delays.
You must notify your local municipality at least 2 business days before a required inspection. ITI Permit helps builders and contractors manage inspection scheduling — ensuring notices are submitted on time and inspections are booked at the correct construction stages.
If an inspection fails, construction cannot proceed until the identified issues are corrected and a re-inspection is passed. ITI Permit provides full remediation support — reviewing inspector comments, identifying required corrections, and coordinating re-inspections to get your project back on track.
Yes. ITI Permit provides construction inspection services for commercial projects including offices, retail stores, restaurants, industrial facilities, and all other commercial building types across Ontario.
A pre-purchase building inspection is a professional assessment of a property’s structural condition, building systems, permit history, and code compliance conducted before you purchase the property. ITI Permit provides pre-purchase inspections to help buyers make informed decisions and avoid costly surprises.
Yes. ITI Permit provides pre-inspection preparation services — reviewing your drawings, construction work, and permit conditions before each mandatory inspection to help you pass first time and avoid failed inspections.
An occupancy inspection is a final review required before a building can be legally occupied in Ontario. It confirms that all construction work has been completed in accordance with approved permit drawings and Ontario Building Code requirements. ITI Permit helps builders and homeowners prepare for and pass occupancy inspections.
Costs vary based on project type, size, and scope of inspection services required. ITI Permit offers some of the most competitive rates for construction inspection services in Ontario. We provide a transparent quote before work begins — no hidden fees.
From mandatory OBC inspections and builder inspection preparation to commercial inspections and pre-purchase reviews — ITI Permit delivers professional, thorough, and efficient construction inspection services across Ontario.
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