How Often Should You Really Get a Roof Inspection in Metro Vancouver?

If you own a home in Vancouver, Surrey, Delta or anywhere else along the BC coast, your roof works harder than almost anywhere else in Canada. Between the near-constant rainfall from October through March, the occasional windstorm rolling in off the Strait of Georgia, and the freeze-thaw cycles that show up in January, a coastal roof ages differently than one in a drier climate. That's exactly why "how often should I get my roof inspected" is one of the questions we hear most from homeowners across Metro Vancouver.

The short answer: most asphalt shingle roofs in our climate should be professionally inspected once a year, with a second check after any major windstorm. But the right frequency really depends on your roof's age, material and history. Below, we'll break down exactly what we recommend and why, based on what we see on inspections across Vancouver, Delta and Victoria every week.

Why Coastal Climate Changes The Math

Manufacturers typically rate asphalt shingles for a 20 to 30 year service life, and those numbers assume reasonably moderate conditions. Metro Vancouver doesn't quite offer that. Here's what a typical roof on the coast contends with each year that a roof in, say, Calgary or Winnipeg usually doesn't:

• Sustained wet season. Roughly 160 to 200 mm of rain falls across a typical Vancouver winter month, and shingles, flashing and underlayment are under near-constant moisture load for weeks at a time.
• Moss and organic growth. Shade, moisture and mild temperatures are a perfect combination for moss, algae and lichen, all of which hold water against the shingle surface and accelerate granule loss.
• Wind events. Atmospheric river storms and the occasional fall windstorm can lift shingle tabs, work flashing loose, or drive rain sideways into vents and skylights that would otherwise stay dry.
• Freeze-thaw cycling. It doesn't need to be extremely cold — a handful of nights near freezing after a wet stretch is enough to expand trapped moisture and stress shingle edges and sealant lines.

None of this means BC roofs fail faster across the board. It means small issues (a lifted shingle tab, a hairline crack in flashing sealant, a clogged valley) turn into leaks faster here than they would in a drier climate, because there's simply more water looking for a way in.

Our Recommended Inspection Schedule

We tell homeowners to think about roof inspections in three tiers, based on the age and condition of the roof:

1. Roofs under 10 years old

An annual inspection, ideally in late spring or early fall, is usually enough. At this age, most issues we find are installation-related (a missed nail, a poorly sealed pipe boot) rather than wear-related, and they're inexpensive to correct while they're small.

2. Roofs 10 to 20 years old

This is where we recommend stepping up to twice a year — once in spring, after the wet season has had its chance to expose any weak points, and once in early fall, before the next wet season begins. Granule loss, sealant fatigue and flashing wear all tend to show up in this window, and catching them early is almost always the difference between a $300 repair and a $3,000 one.

3. Roofs over 20 years old, or any roof after a major storm

At this stage we recommend a professional inspection at least twice a year regardless of visible condition, plus an additional inspection any time the roof takes a hit from a significant windstorm, heavy snow load, or falling debris. Older roofs have less reserve capacity in their remaining service life, so problems tend to escalate faster once they start.

What A Professional Inspection Actually Covers

A proper roof inspection is more than a quick look from the ground. When our crew inspects a roof, we're checking:

• Shingle condition — curling, cracking, granule loss, and any tabs lifted by wind.
• Flashing — around chimneys, skylights, vents and wall intersections, where the majority of leaks actually originate.
• Valleys and eaves — the most common places for debris to build up and water to pool.
• Ventilation — soffit and ridge vents, since poor attic airflow accelerates shingle aging from underneath.
• Gutters and downspouts — since a failing gutter system backs water up under the shingle edge.
• Attic interior — checking for water staining, daylight through the decking, or signs of past leaks that were never addressed.

We document everything with photos and give you a written report either way — whether that's "you're in great shape, see you next year" or a prioritized list of what needs attention and roughly what it will cost. There's never pressure to book work you don't need; the point of an inspection is information, not a sales pitch.

Best Time Of Year To Schedule

In our experience, the two best windows for a roof inspection in the Lower Mainland are:

1. Early fall (September–October) — before the wet season really sets in, so any repairs can be completed while conditions are still dry enough to work safely and effectively.
2. Late spring (April–May) — right after the wet season, when any weak points that were exposed over the winter are easiest to spot.

If you can only manage one inspection a year, fall is the higher-priority slot — it gives you the chance to fix anything before months of sustained rain test it.

The Cost Of Skipping Inspections

We understand the temptation to skip a roof inspection when nothing seems obviously wrong. The problem is that most roofing failures are quiet right up until they're not. A small gap in flashing sealant doesn't announce itself — it just lets a trickle of water in behind the wall or into the attic insulation, where it sits unnoticed for months. By the time it's visible as a ceiling stain, you're often looking at repairing not just the roof but drywall, insulation and sometimes framing as well.

A typical roof inspection costs a fraction of even a minor water damage repair, which is why most contractors — us included — treat it as a routine maintenance item rather than an optional extra.

Ready To Book Your Inspection?

If it's been more than a year since your roof was last checked — or you've never had a professional inspection at all — we'd recommend getting one on the calendar before the next wet season starts. Our crews serve Vancouver, Surrey, Delta, Richmond and the wider Lower Mainland, and every inspection includes a written, photo-documented report. If repairs are needed, our roof repair & maintenance team can usually schedule the fix quickly, before minor issues turn into major ones.