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Wash siding and exterior surfaces

Removing dirt, mildew, and algae protects finishes and keeps siding from degrading early.

How often
Yearly
Who
DIY
Typical cost
Up to $150
Time
2 hr

Why this matters

Removing dirt, mildew, and algae protects finishes and keeps siding from degrading early.

If you skip it: Built-up grime and mildew shorten the life of paint and siding.

Who should do it

This is a do-it-yourself task. With basic tools and a few minutes, most homeowners can handle it without hiring anyone.

When to do it

Aim for spring. It's the natural reset after winter. Repeat once a year.

Frequently asked questions

How often should I wash siding and exterior surfaces?+
Plan to wash siding and exterior surfaces once a year. Removing dirt, mildew, and algae protects finishes and keeps siding from degrading early.
How much does it cost to wash siding and exterior surfaces?+
It typically runs Up to $150. This is a do-it-yourself task. With basic tools and a few minutes, most homeowners can handle it without hiring anyone.
What happens if I skip it?+
Built-up grime and mildew shorten the life of paint and siding.