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Detailing Through a Clark County Year

What each season actually does to a car in Vancouver, WA, leaf tannins, winter de-icer, spring pollen and late-summer ash, and when to book which kind of work.

Updated September 17, 2026 Seasonal, Maintenance

Most seasonal car care advice is written for somewhere sunny. It tells you about UV damage and heat-cracked dashboards, and it is not much use here. Vancouver, WA gets roughly forty inches of rain a year. Our problem is not the sun. It is water, and what water carries.

Here is what each season actually does to a car in Clark County, WA, and what is worth doing about it.

Autumn is the one people underestimate

Leaves are not harmless. Wet leaves sitting on paint leach tannins, and tannins stain clear coat, a brown outline in the shape of the leaf that a normal wash will not lift once it has set. Two or three weeks under a maple is enough.

Worse, leaves collect in the cowl drains under the windscreen and in the channels at the base of the doors. Those drains exist so water leaves the car. Blocked, the water backs up and finds its way into the cabin, and the first you know about it is a damp carpet and a smell in November.

Worth doing: clear the cowl and door drains before the leaves finish falling, and get the paint decontaminated and sealed. A sealant is what keeps tannins on the surface rather than in the clear coat. This is also the last comfortable window for exterior work before the weather closes in.

Winter is chemistry, not cold

Our winters rarely damage a car by being cold. They damage it by keeping it permanently wet and coating it in road film.

De-icer is the part people miss. Washington treats the main routes when it freezes, and the residue does not wash off in the rain. It clings, particularly to the underside, the wheel arches and the lower quarter panels where rust starts. Rain dilutes it and spreads it around. It does not remove it.

The other winter problem is one you will not see on a car from a drier state: moss and algae growing on rubber seals and trim. It thrives in the damp and it gets into door seals, windscreen surrounds and roof rails. Left alone it holds moisture against the seal and shortens its life.

Low winter sun through dirty glass is also genuinely dangerous. Glass that looks fine at noon turns into a wall of glare at four in the afternoon.

Worth doing: wash more often than feels reasonable, and pay attention to the undercarriage. Keep the glass properly clean, inside as well as out. Aquapel earns its keep in this season more than any other, rain beads and leaves instead of sheeting, which means less glare at night and less standing water to dry into spots.

Spring is pollen, and pollen is not dust

The pollen that coats everything here in April and May is mildly acidic. Combined with the rain that always follows it, it etches. Hosing it off spreads it; wiping it dry drags it across the paint like a fine abrasive.

Spring is also when the winter’s damage becomes visible. The grime comes off and what is underneath is dull paint, water spots that have started to etch, and any de-icer corrosion that got a foothold.

Worth doing: rinse pollen off, do not wipe it. Then book the decontamination wash that actually removes what has bonded into the paint over winter, a clay decontamination is the step that separates a wash from a detail.

Summer is the short window that matters

This is the part worth planning around. Our dry season is brief, and it is the only reliable time for the work that needs dry conditions.

Paint correction and ceramic coating belong in summer. A coating needs to cure before it gets wet, and doing that in January means chasing a dry spell. Booked in July, it goes on properly and then carries the car through the winter that follows, which is when you actually want it, because that is when washing gets miserable and a hydrophobic surface saves you the most effort.

The one genuine summer hazard here is not UV. It is wildfire ash, which has become a normal part of August and September in the Pacific Northwest. Ash is alkaline, and it etches paint when it gets damp. It is also sharp. The worst thing you can do is wipe a dusty car with a dry cloth.

Worth doing: if ash settles, rinse it off with plenty of water and no contact at all until it is gone. And if you have been thinking about a ceramic coating or a buff and polish, this is the season to do it.

The short version

SeasonThe real threatWhat to book
AutumnLeaf tannins, blocked drainsDecontamination wash and sealant
WinterDe-icer, road film, moss in sealsFrequent washing, glass treatment
SpringAcidic pollen, etchingClay decontamination, interior refresh
SummerWildfire ashPaint correction, ceramic coating

None of this is complicated. It is mostly a matter of doing the right thing in the right month rather than the same thing all year and wondering why the paint looks tired by the time it is three.

If you want a hand with any of it, call or text 360-335-4468. We cover all of Clark County, WA and we come to you.

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Call or text 360-335-4468. Flat rates, and we come to you.