New Build Home Inspection in Agincourt — Why 94% of New Homes Have Defects
Last month I inspected a three-bedroom townhouse on Finch Avenue East in Agincourt. The owners had just taken possession two weeks earlier. Their lawyer had urged them to get an inspection despite the builder's warranty. Smart choice. I found three significant defects before they'd even unpacked most boxes: improper grading that would flood the foundation during heavy rain, a furnace that wasn't vented correctly, and electrical outlets in the kitchen that weren't GFCI-protected as required by code. The builder's warranty covered none of these properly. The owners could have faced $8,200 in corrective work within their first winter. That scenario plays out more often than most people realize.
I've spent fifteen years as a Registered Home Inspector here in the Greater Toronto Area, and I've watched the new build market evolve. What hasn't changed is this: builders are obligated to meet minimum code, but minimum code isn't the same as quality, and it certainly isn't the same as protecting your investment. New homes in Agincourt and across Ontario carry defects in roughly 94 percent of cases according to data from Tarion Warranty Corporation. Not catastrophic defects always, but issues that'll cost you money, time, or both.
The thing about Agincourt is that it's attracted significant new construction over the past decade. You've got developments all through the area from Sheppard Avenue up through Finch, clustered around the Agincourt GO station and spreading into Milliken neighborhoods. These aren't all the same builders or the same quality levels. Some are solid. Others cut corners. Without a third-party inspection, you won't know which you've bought until something goes wrong.
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The Tarion warranty exists. You'll hear that mentioned in every real estate transaction involving a new home in Ontario. But Tarion covers latent defects within specific timelines, structural defects within seven years, and major defects within two years. That sounds comprehensive until you actually read the exclusions. Tarion doesn't cover defects you should have spotted yourself. They don't cover cosmetic issues, minor water infiltration, or improper installation that doesn't reach the threshold of "major." They also require you to report issues within specific windows or you lose coverage.
Here's what an independent inspection does: it documents everything before the builder's punch list closes. It identifies defects that fall outside Tarion's scope. It creates a record that protects you if a problem worsens later. Most importantly, it gives you negotiating power with the builder while they still have skin in the game.
Ontario's Tarion data shows that homes with independent inspections before closing have significantly better long-term outcomes. Why? Because the inspector walks through systematically, documents findings, and the builder knows they'll have to explain deficiencies. When I find moisture in a basement wall or improper flashing around a window, the builder has two choices: fix it now or watch the transaction get held up. They almost always fix it.
Most Common Defects in Agincourt New Builds
Over the years I've built a mental catalog of what fails in new homes here. Water management issues top the list. Agincourt sits on terrain that drains toward the Finch Avenue corridor in certain areas, and builders sometimes underestimate grading challenges. I've found improper negative grades, missing or insufficient downspout extensions, and poor lot grading that channels water toward foundations instead of away. One property near Scarborough Golf Club Road had grading sloped toward the garage foundation. That'll cause problems.
Electrical work runs second. Missing GFCI outlets in kitchens and bathrooms despite code requirements. Incorrectly sized breakers. Outlets installed in wrong locations. I don't see exposed wiring or safety hazards often, but code compliance issues are routine. $1,200 to $3,400 to bring these up to standard when the builder won't correct them.
Furnace and ventilation problems come next. Improper venting of combustion gases. Water heater vents sharing ducts incorrectly. Bathroom exhaust fans vented into attics instead of outside. These aren't always obvious, and they're expensive to fix. We're talking $2,800 to $5,100 for proper rectification depending on the home's configuration.
Framing and structural gaps show up regularly. Missing blocking between studs where cabinet fasteners need support. Improper header sizing in non-load-bearing walls. These seem minor until you're hanging a heavy cabinet and realize there's nothing behind the drywall to anchor into.
Finish work — that's paint, trim, caulking — shows defects in nearly every home I inspect. Poor caulking around windows means water will eventually infiltrate. Paint coverage is thin in corners and angles. Trim joints are gapped where they should be tight. Most builders consider this cosmetic and won't address it under warranty. But water doesn't read the warranty. It finds those gaps and exploits them.
Builder Warranty Versus Independent Inspection Findings
Here's the tension: a builder's warranty typically covers defects for one year from closing. But the builder gets to define what constitutes a defect worthy of repair. Minor settlement cracks? That's normal. Cosmetic paint issues? That's finish work and outside scope. Some moisture in the basement corner? That's moisture, not a defect, in their interpretation.
An independent inspection creates a baseline. If I document moisture on your closing date, and you report it to the builder, they know you've got evidence. If you call them three months later claiming moisture that wasn't on the closing inspection, they'll tell you it's your problem now. Documentation matters. Evidence matters.
I inspected a home in the Milliken area last year. The builder had missed installing weather stripping on exterior doors. My inspection report flagged this. The builder installed it before closing. Three months later, I got a call from the homeowner. "The door's leaking." The builder wouldn't touch it because it was "outside the warranty period" and "cosmetic work." But my inspection report proved they'd already failed to install it properly. The homeowner used that documentation to force a correction. Without the inspection, they'd have been stuck.
Tarion Warranty Coverage and the Gaps
Tarion divides coverage into three buckets. Structural defects for seven years. Major defects for two years. Everything else for one year. But there's a catch: you have to report it and give Tarion notice within specific timeframes or you lose your right to claim.
Structural defects in Tarion language mean the home is unsafe or unsuitable for occupancy. A cracked foundation wall counts if it's structural. A detached rim joist counts. Missing structural support doesn't. That's the kind of distinction that trips people up.
Major defects are things like failed HVAC systems, failed electrical systems, or failed plumbing. But "failed" has a specific definition. A furnace that runs but isn't vented correctly isn't technically failed in Tarion's view. A circuit breaker that trips intermittently but hasn't fully failed yet isn't covered.
Everything else — water infiltration that doesn't constitute a major defect, poor workmanship, finish issues, cosmetic problems — falls under the one-year limited coverage. And one year goes fast when you're moving in, settling, and dealing with life.
The gap is huge. I've seen homes with significant water infiltration issues that Tarion deemed "normal moisture" and outside their coverage. I've seen electrical work that violated code but hadn't failed yet, so Tarion wouldn't intervene. An independent inspection catches these gaps before Tarion's one-year window closes. It also creates a record that can strengthen your position if you do file a Tarion claim later.
Timing Your New Build Inspection
This is critical and I see people get it wrong. You want the inspection done after you've received your closing date but before you close. The builder hasn't transferred responsibility to you yet. Any defects found are still their responsibility to correct.
The best timing is typically ten to fourteen days before closing. That gives the builder enough time to address issues without rushing, and it gives you enough time to walk through again after corrections before you hand over your money.
Some people wait until after closing. I understand the impulse — you're excited, you want to move in. But once you've accepted the keys, you've accepted the property in its current condition in most cases. The builder's obligation to you shifts. Now you're in their warranty period, which they control, and gaps in that warranty become your problem.
I also recommend a follow-up inspection thirty to sixty days after closing. By then, things have settled slightly. Grading patterns are clearer. Moisture issues might have appeared. The builder is still obligated during the warranty period, and a second inspection often uncovers things that weren't obvious on move-in day.
Real Findings from Agincourt Developments
Let me give you specifics from recent inspections I've completed in and around Agincourt. One development near Sheppard and Kennedy Road produced homes with consistent basement dampness issues. Builders blamed the lot, but the issue was improper basement membrane application and poor interior perimeter drainage. Correction cost: $4,287 per unit once Tarion finally agreed to it.
Another cluster near the Agincourt GO station had HVAC units installed without proper clearance for servicing. The builder had positioned furnaces and water heaters in corners with only eighteen inches of access space when code requires three feet. Not dangerous immediately, but homeowners couldn't service equipment and would face $6,100 in rectification to relocate units properly.
I inspected eight units in a row house development on Finch Avenue East. Seven had missing or improper kitchen exhaust venting. The builder had run vents through exterior walls but hadn't sealed penetrations correctly. Water was already starting to seep around the outside edges of the vents. That's $2,200 per unit to properly seal and extend vents outside the thermal envelope.
One more example that stuck with me: a home in the Scarborough Golf Club area had the wrong electrical service size for the home's square footage and heating system. The builder had installed a 100-amp service when the home required 200 amps for safe operation. Not yet a failure, but the owner couldn't fully operate their home without tripping breakers. The correction cost $3,850.
These aren't isolated cases. These are patterns I'm seeing across multiple developments with different builders.
Questions to Ask the Builder
When you're at the property with your builder representative, ask specific questions. Don't accept vague answers. Ask about grading plans and how water is managed on your lot specifically. Ask for documentation of electrical inspections and confirmation that all outlets meet current code. Ask about HVAC venting routes and how combustion gas is expelled. Ask about basement waterproofing methods and what's guaranteed.
Ask who's responsible for punch list items and what timeline they'll follow. Ask what happens if you find defects after closing but within the warranty period. Ask specifically what's excluded from the warranty. Ask about Tarion coverage and what defects they've encountered
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