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Serving Western Washington
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Fiber Cement Siding Washing

Fiber cement siding washing gently lifts mildew and grime from Hardie board while preserving its factory paint and sealed edges.

What This Service Involves

Fiber cement is popular across the region for its durability, but its painted surface and porous cut edges still need careful handling. We soft wash the boards to clear the mildew that clings to the textured finish in our damp shade. Aggressive pressure can chip the coating and expose the cement beneath, so we let detergents carry the load instead. The finish stays intact while years of organic staining disappear from the lap boards and trim.

Benefits

Preserves factory paint and sealed board edges; Removes mildew from the textured surface; Avoids chipping that exposes raw cement; Keeps trim and lap boards evenly clean

Our Process

1) Confirm the coating is sound and note any exposed edges; 2) Apply a mild soft wash solution across the boards; 3) Allow dwell time to release the mildew and film; 4) Rinse at low pressure and inspect the finish closely

What Affects the Cost

Square footage of the fiber cement surface; Extent of mildew on shaded elevations; Condition of the existing paint coating; Height and access for safe low-pressure work; Trim and detail work included in the job

Best Time of Year

Schedule during the dry summer stretch so the boards dry thoroughly and the coating is not left damp.

Ready to get started?

Book fiber cement siding washing and keep your Hardie board clean without harming its finish.