Sanding and pressure washing serve different purposes in deck maintenance, so one is not necessarily better than the other. Pressure washing is ideal for annual cleaning to remove dirt, grime, mold, and mildew. Sanding is a deeper restoration method used to smooth rough surfaces, remove an old finish, and prepare the wood for a new coat of stain or paint. The ideal process for refinishing a deck is to first clean it (with a power washer), then sand it, and finally apply the new stain or finish. While cleaning should be done annually, sanding and staining are typically needed only every one to three years.

The cost of sandblasting depends on the scope of the project, the surface type, labor, and equipment required. Services typically cost between $50 and $80 per hour, though most professionals charge by surface area at a rate of $1.50 to $7 per square foot. Total project costs can range from $700 to $12,500, with an average homeowner spending around $3,200 to sandblast a 1,000-square-foot surface.

Sandblasting is useful when you need to strip material off a hard surface. Common reasons to sandblast are to remove paint, rust, or get a surface ready for a new material. You aren’t limited to surfaces like walls either—you can sandblast rusted tools, bicycle frames, cement, bricks, and many others. If what you’re sandblasting is still structurally sound, sandblasting can be a fast and inexpensive way to revive the original material. 

Costs depend on surface material, labor, debris disposal, and the type of blasting media used.