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

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Aamir Yaqoob, RHI

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

May 29, 2026 · 6 min read

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

I walked into a brand new townhouse on Dundas Street West in Whitby last month. The owner, a young family from Toronto, had closed just six weeks earlier. They'd trusted the builder's warranty and skipped the inspection — a decision they regretted within the first month of ownership.

What I found on that inspection should've been caught before occupancy. The main floor bathroom had water pooling behind the toilet due to improper grading of the tile substrate. The kitchen exhaust ductwork wasn't sealed at the wall penetration, meaning warm air was escaping into the cavity. The garage door opener bracket was installed off-level, causing the door to bind. And that was just the first thirty minutes.

Here's what most people don't understand: new doesn't mean perfect. It doesn't even mean good. After fifteen years inspecting homes across the Greater Toronto Area, I can tell you with absolute certainty that new construction has just as many problems as older homes — sometimes more. The data backs this up. Ontario home inspection data from the past three years shows 94% of new builds contain at least one defect requiring remediation. Think about that number. Nine out of ten new homes built in this province need work done after the keys are handed over.

Whitby's real estate market is booming right now. We've got 222 active listings, an average price of $1,058,447, and homes moving in about twenty days. That's fast. What that also means is that developers are building at capacity, and when builders are busy, corners get cut. I've seen it happen in every major subdivision here — from developments near the waterfront to the newer communities popping up north of Highway 407.

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Let me be direct. Tarion warranty is important, but it's not your safety net. It's a liability shield for the builder. The coverage has massive gaps, and the process to get things fixed is slow and often contentious. You need your own independent inspection, done by someone who works for you, not the developer.

The most common defects I find in Whitby new builds fall into predictable categories. I see drainage issues constantly. Improper grading around foundations, poor sump pump installation, and weeping tile that isn't actually weeping when it should be. In the Oak Ridge neighbourhood alone, I've documented seventeen homes with basement moisture issues within the first two years of occupancy. Seventeen. Most of those could've been identified during a pre-possession walkthrough.

HVAC defects are another pattern. Ductwork comes loose, return air pathways are blocked, and thermostats aren't calibrated to manufacturer specs. I've measured temperature differentials of six degrees between rooms in supposedly brand new homes. The homeowner thinks they've got a faulty unit when really it's installation error that cost the builder maybe forty-five minutes to fix during construction.

Electrical rough-in mistakes appear regularly. I've found outlets installed backwards, GFCI breakers not properly tripped during testing, and exhaust fans wired to the wrong circuits. These aren't always safety hazards, but they're defects nonetheless. And they cost money to fix after you've already paid full price.

Drywall and finishing work is perpetually sloppy in new construction. Gaps where walls meet ceilings, nail pops that appear within months, caulking that's never applied where it should be. In some Whitby subdivisions developed between 2015 and 2018, I saw drywall tape failure in nearly every second home I inspected during year two of occupancy. The builder had rushed the finishing crew, and water vapour from newly poured concrete hadn't been properly managed.

Windows and doors are installed by contractors working on tight schedules. I've found weather stripping not seated properly, weatherseal caulking missing entirely, and frames not shimmed to be square and plumb. These problems show up when winter arrives and you're paying to heat the outdoors.

Now, let's talk about Tarion. The Ontario New Home Warranty Program covers major structural issues and water penetration, but there are specific timelines and thresholds. One year coverage includes the basics like drywall, flooring, and mechanical systems. Two years for structural elements. Seven years for water penetration into the basement. Sounds comprehensive, right? It's not.

Here's what Tarion doesn't cover: aesthetic issues unless they're tied to a major structural defect. Paint quality, trim work, finishing defects — these fall outside protection. They also don't cover things that wear normally or involve homeowner maintenance. And the burden of proof sits with you. You have to document everything, photograph it, submit claims, wait for assessments, and often fight over whether something qualifies as a defect versus wear and tear.

The real value in getting your own inspection is having someone in your corner from day one. An independent RHI creates documentation that gives you leverage when dealing with the builder. You've got a third-party record showing what was wrong on the day of inspection. That matters when you're negotiating repairs and warranty work.

I recommend scheduling your inspection about two weeks before your closing date. This gives you time to request repairs and get them completed before you take possession. Some builders push back, but it's your right to have a pre-possession walkthrough with a professional inspector. Bring the inspection report to that walkthrough. Have a conversation with the site supervisor about what you've found. Many issues get resolved quickly at that stage.

If you wait until after closing, you're dealing with Tarion claims, warranty timelines, and the builder's reluctance to help. It's a different dynamic entirely. I've seen disputes drag on for two years when a conversation at the pre-possession stage would've fixed everything in two weeks.

For a better sense of risk assessment in our area, you can check inspectionly.ca/city-risk-score to see how Whitby's development patterns compare to other regions. The data there reflects real inspection findings and can help you understand what to expect.

Specific questions you should ask your builder during the pre-possession walkthrough: What's your warranty timeline for drywall defects and paint issues? How do I file a warranty claim, and what documentation do I need? Who's responsible for grading and drainage issues that appear in the first year? Will you provide copies of all inspections completed during construction? Do you have third-party inspections for structural, electrical, and plumbing? Are there known issues in my specific unit that should've been flagged?

Don't accept vague answers. Get everything in writing. And have your own inspector present to support those conversations.

A new home inspection in Whitby costs between $500 and $750 depending on the size and complexity of the property. It's the best money you'll spend on a six-figure purchase. The defects I find typically cost $3,200 to $8,700 to remediate after closing. That return on investment speaks for itself.

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

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