Do I need an inspection for a new build in Ottawa?

You've just signed on a brand new build in Barrhaven, Kanata, or Orléans, and the builder hands you a glossy Tarion warranty package. It's easy to assume a new home doesn't need inspecting — but that assumption is one of the most expensive ones a buyer can make. New construction has its own category of defects. They're not necessarily more serious than what shows up in older homes, but they're often harder to spot, easier to miss, and frequently outside what Tarion will cover by the time you find them.

What Tarion Actually Covers — And What It Doesn't

Tarion is Ontario's new home warranty program. Understanding what it covers, and what it doesn't, is the first step in deciding whether an independent inspection is worth it.

The builder's Pre-Delivery Inspection (PDI) is not the same as an independent home inspection. You're walked through the home quickly with the builder's own checklist, and anything not noted on that form becomes your responsibility to find, document and report later. This is why it's important to do your due diligence and inspect the home within the first move-in period, which is 45 days (extended from 30 days previously).

What We Consistently Find in New Ottawa Builds

Ottawa's clay-heavy soil, freeze-thaw cycles, and the pace of suburban development in areas like Barrhaven, Kanata, and Stittsville create conditions where certain issues show up again and again.

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  Grading and drainage around the foundationFinal grading is often completed before the ground has fully settled, which can leave water pooling toward the foundation instead of away from it.
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  Electrical deficiencies that pass rough inspection but fail on useMissed or not-working GFCI receptacles, and missing or deficient switches.
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  Attic ventilation and insulation gapsInsulation blown in after the vapour barrier is sealed can leave cold spots near the eaves, setting up ice damming come winter, as well as missing or incorrectly installed baffles.

The Best Time to Inspect — Before You Close

There are two moments worth having a new build inspected, and most buyers miss at least one: right after you take possession of the house, where you're still protected by the 45-day Tarion warranty, and again before your 1-year warranty ends.

1. Right After Possession — Your 45-Day Window

This is the single highest-value inspection you can get on a new build. It happens right after you take possession, while you're still inside the 45-day Tarion window — the period covering the bulk of your Year 1 warranty. An independent inspection at this stage documents deficiencies professionally, with photos, so they can actually be submitted as a Tarion claim rather than argued about after the fact.

2. Before Your 1-Year Warranty Ends

A second inspection as your Year 1 anniversary approaches catches anything that's surfaced since move-in — settling cracks, doors and windows that have started sticking, or systems that haven't performed as expected through a full season. Timing it 60 to 90 days before your Year 1 deadline gives you enough runway to document findings and file a claim before the window closes.

TL;DR

• Tarion covers a lot, but not everything — and only what's documented in time.
• The builder's PDI walkthrough is not a substitute for an independent inspection.
• The first inspection after you take possession of the home is the most important one — it still covers the bulk of your warranty.
• Tarion claim deadlines are firm — an inspection 60–90 days before each one gives you time to act.

Frequently Asked Questions