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 paint type, surface condition, labor, and required prep work for repainting.

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.

Because these two systems have different applications, there is no definitive answer to which is better. When working with sturdy materials, sandblasting is cheaper and faster, but more delicate projects require soda blasting. Before choosing either option, consider your specific needs, particularly your ultimate goal (cleaning, removing rust, prepping for painting, etc.), the material, and your budget.