New Build Home Inspection in Hamilton — Why 94% of New Homes Have Defects

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Aamir Yaqoob, RHI

RHI Certified · OAHI Member · InterNACHI · E&O Insured

April 14, 2026 · 6 min read

New Build Home Inspection in Hamilton — Why 94% of New Homes Have Defects

Last month I inspected a four-year-old home on Fennell Avenue West in Westdale. The owners had just bought it from the second owner, thinking they'd skipped the new build phase and avoided typical construction issues. Wrong. During my inspection, I found severe grading problems that had been masked by landscaping, a furnace installed backwards (limiting airflow efficiency), and drywall cracks radiating from every interior door frame. The builder's warranty? Long expired. Tarion coverage? Already used for a water intrusion issue the first owner never disclosed. This home had slipped through without a proper pre-delivery inspection, and now the new owners were looking at $8,400 in remedial work.

That's what happens when people skip the new build inspection. And they skip it more often than you'd think.

I've been doing this for fifteen years across Ontario, and I'm going to tell you something that surprises most people: new homes need inspections just as much as resale homes. Sometimes more. Ontario data shows that roughly 94% of new homes have some kind of defect at the time of closing. Some are minor—a door that doesn't hang straight. Others are serious—missing insulation, plumbing rough-ins that don't meet code, electrical work that'll fail inspection down the road.

Hamilton right now is sitting in the middle of a construction boom. We've got 1,214 active new build listings, average prices hovering around $922,365, and homes moving in about 20 days. That's a competitive market, which means builders are under pressure. Time pressure. Budget pressure. And when builders feel that squeeze, quality sometimes becomes the thing that gets squeezed.

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The first thing you need to understand is what a builder's warranty actually covers and what it doesn't. In Ontario, new homes come with either a Tarion warranty or an equivalent third-party warranty (less common now). Tarion is administered by the provincial regulator, and it covers structural defects for seven years, major systems like the roof for five years, and general construction quality for two years. Sounds comprehensive, right? It isn't.

Here's what Tarion doesn't cover: cosmetic issues, improper grading, drafty windows, poorly sealed joints, paint defects unless they're hiding structural problems, and anything the builder declares "normal wear and tear." I've seen Tarion denials on issues that are clearly defects but that fall into their interpretation of acceptable variance. One homeowner in Mountain tried claiming grading that directed water toward the foundation. Tarion said it was "normal site settlement" and denied the claim. The homeowner ended up spending $6,100 on regrading and drainage work out of pocket.

Tarion also requires you to report issues within specific timeframes. If you don't catch something in those windows, you lose your claim. Many people don't know this until it's too late.

That's where an independent inspection comes in. I'm not here to replace Tarion or the builder's warranty. I'm here to catch everything before you close and before those critical reporting periods start ticking. Think of it as a second set of eyes, and more importantly, eyes that have no financial stake in moving the sale forward.

In my fifteen years, I've seen patterns emerge in different Hamilton developments. The newer builds along the Mountain have had consistent issues with basement finishing—moisture seeping through block walls, improper vapor barriers, and concrete pours that weren't cured properly before drywall went up. Downtown Stoney Creek developments have shown recurring problems with rough plumbing—copper lines that weren't properly secured, water pressure regulators missing entirely. And the newer subdivisions in Ancaster? They've had grading disasters. One street had fifteen homes all sloping toward the foundation instead of away from it. The builder eventually fixed most of them, but only because inspectors caught it during pre-delivery walkthroughs.

Common defects I find in Hamilton new builds come down to a consistent list. Drywall cracks at corners and around openings because the framing wasn't properly braced. Caulking that's missing or applied over paint. Electrical outlets installed upside down (not a code violation, but sloppy). Missing or inadequate weatherstripping. Furnaces and air handlers installed in ways that restrict airflow. Plumbing fixtures that leak from day one. Grading that slopes the wrong direction. Basement windows installed backward. Insulation gaps in exterior walls. And paint—so much paint applied over dirt or dust that it starts peeling within months.

One house I inspected in Dundas had the kitchen faucet installed with the shut-off valve positioned so you couldn't actually access it once the cabinet was installed. The builder said it was "designer intent." I said it was a $287 installation error.

When you're buying new in Hamilton, timing is everything. You need a pre-delivery inspection scheduled as close to your closing date as possible, ideally within 48 hours. This gives the builder time to fix things if they choose to (they don't always choose to—you'll have to decide if you're pushing back), but it also locks in your findings as of a specific date. I recommend doing a walk-through with your inspector while the builder's superintendent is on site if possible. Not to argue, but to document their acknowledgment of issues. Get everything in writing.

You'll also want to ask your builder some pointed questions before you even sign. Ask them what defects they found during their own pre-delivery inspection and how they addressed them. Ask for the names and contact information of the previous three homeowners they've sold to in your neighborhood. Ask what their timeline is for warranty claims and whether they handle them directly or through a third party. Ask what's covered under their extended warranty options and whether it's worth the cost (usually it isn't). Ask whether the home was inspected by a municipal building inspector and when. Ask about any construction delays and whether there were crew changes late in the build.

The answers tell you a lot about how seriously they take quality.

You can check the risk profile of new construction in Hamilton neighborhoods at inspectionly.ca/city-risk-score. Hamilton as a whole scores 57 out of 100 for risk, with about 72.8% of homes in the higher-risk era for construction methods and materials. That means a lot of the homes being built right now are using techniques and products that'll have a longer lifespan to prove out. You want to catch defects now rather than wondering about them in five years.

The inspection costs between $400 and $650 depending on the home's size and complexity. That's nothing compared to the cost of remedial work after closing. I've had clients spend $12,000 fixing issues that would've cost $2,800 for the builder to correct before handover.

Book an inspection at inspectionly.ca/book-an-inspection or call 647-839-9090.

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