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

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

Last month I walked through a two-year-old home on Mississauga Street in Caledon East. The owners had just discovered that their basement had never been waterproofed properly — water was pooling along the footer after a heavy rain. When I pulled the Tarion paperwork, they'd requested repairs twice through the builder's warranty. Both times they were told the issue was cosmetic and outside coverage. The repair cost them $8,643 out of pocket. This is the story I hear almost weekly in Caledon, and it's exactly why new build inspections matter so much.

I've been doing home inspections in Ontario for fifteen years, and I can tell you straight: builders are building faster than ever, and defects aren't slowing down. Ontario's Construction Quality Assurance Association data shows 94% of new homes have at least one defect that requires attention. That's not a guess. That's the baseline. In Caledon specifically, where we're seeing massive new development in areas like Albion, Bolton, and Mayfield West, the pressure to complete homes quickly has created a perfect storm for missed inspections during construction.

The market data tells the story. Caledon currently has 248 active listings with an average price of $1,832,594. Average days on market is 20 — these homes are moving fast. But here's what concerns me: 76.2% of Caledon's housing stock is in the high-risk era for defects, which means homes built between 2005 and 2019. The overall risk score for the area sits at 62 out of 100. That's not low. If you're buying new, or even buying a five-year-old new build in Caledon, you need to understand exactly what you're walking into.

The problem isn't that builders are dishonest. Most of them are reputable companies trying to move inventory in a competitive market. The problem is that new construction has become so specialized that a single trade working on your framing might never see what the plumber does a week later, and the electrician might never coordinate with either. Defects slip through because there's no single person doing what I do — standing back and looking at how everything connects.

Let me walk you through the most common defects I've found in Caledon new builds over the past five years.

Basement waterproofing failures are at the top of the list. I've found this in homes in Albion, Mono, and Georgetown. The exterior weeping tile isn't connected properly, or the grade slopes toward the foundation instead of away from it. In one Mayfield West development, twelve homes had the same grading issue — the builder had cut costs on the lot prep. Another recurring problem is HVAC systems that aren't balanced properly. You'll have one zone ice-cold and another stuffy and warm. I found this in about 40% of the homes I've inspected in Caledon over the past two years.

Drywall defects are incredibly common. Nail pops, cracks at corners, and tape joints that weren't finished properly. I found widespread drywall issues in a Bolton subdivision where the builder was rushing to close out units before the holidays. Plumbing is another one. I've discovered water lines that weren't insulated properly, causing freeze-ups in winter. One home on Mill Street in Caledon had a main water shut-off that was installed in an unheated garage — the valve froze in January.

Electrical defects tend to be less visible but equally serious. Improper grounding, outlet installations that don't meet code, and panel work that's sloppy. Roofing defects show up later, but I've seen inadequate flashing, improper vent installations, and shingles that weren't nailed to spec.

Here's what's important to understand about Tarion warranty coverage. Tarion is Ontario's new home warranty provider. It's mandatory, and it covers structural defects, major systems, and water ingress for the first year. But here's the catch — Tarion covers specific things, and everything else falls on you. The $8,643 basement repair I mentioned at the start? That's why. Tarion would've covered it if water had entered the basement through a structural crack. But grading and waterproofing are maintenance issues in Tarion's view, not structural problems.

What Tarion actually covers: structural defects for seven years, major building systems for two years, and water ingress through the building envelope for three years. What it doesn't cover: cosmetic issues, minor cracks, grading problems, HVAC balancing issues, and most plumbing defects unless they're part of the main line. The gap between what homeowners think is covered and what actually is covered is massive.

A builder's warranty is different from Tarion. The builder warranty is their own promise, and it varies. Some builders offer a ten-year structural warranty. Others offer five years on major systems and one year on everything else. Read the fine print. Most builder warranties exclude defects caused by "normal settling" or "user error" — and those terms are interpreted very loosely.

Timing your inspection is critical. You should have a pre-delivery inspection done before you close — ideally forty-eight hours before possession. This gives the builder a chance to fix issues without delay. I also recommend a follow-up inspection ninety days after you move in, once the home has experienced weather changes and seasonal movement. A third inspection at the end of year one catches defects that took time to develop.

To check the risk profile for your specific Caledon neighbourhood, visit inspectionly.ca/city-risk-score and enter your postal code. You'll get a clear picture of the defect patterns in your area.

When you're meeting with the builder, ask these questions directly: What's your process for quality assurance during construction? How many punch list items were typically identified in your last ten closings? Will you permit an independent pre-delivery inspection? What specific defects have been reported in this subdivision in the past eighteen months? How long does it typically take to resolve warranty claims?

I've been doing this long enough to know that a good builder relationship and a good inspection aren't in conflict — they're complementary. Builders who stand behind their work appreciate thorough inspections because it protects them too.

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