Is it better to sand or power wash a deck?

Both are maintenance routines with distinct advantages, and sometimes, using them together can yield the best results.

Sanding: Restoring the Wood

Sanding is a traditional method for restoring wood decks. It involves using abrasive materials to smooth out the surface, remove imperfections, and reveal the natural beauty of the wood beneath. Sanding is particularly effective for decks that have accumulated years of wear and tear, with visible signs of weathering such as splinters, cracks, or rough patches.

One of the primary benefits of sanding is its ability to rejuvenate the wood, providing a fresh canvas for refinishing or sealing. By removing old coatings and damaged layers, sanding allows for better adhesion of stains or sealants, ensuring a more durable and attractive finish.

But sanding can be labor-intensive, especially for larger decks or intricate designs. It requires patience, the right equipment, and proper safety precautions to avoid damage or injury. Importantly, it is only an option for wood decks: never sand cellular PVC products.

Power Washing: Deep Cleaning

Power washing, on the other hand, offers a quick and efficient solution for deep cleaning decks. This method utilizes high-pressure water to remove dirt, grime, mold, mildew, and other surface contaminants that accumulate over time. Power washing is particularly beneficial for routine maintenance, as it helps prevent the buildup of debris and extends the life of the deck.

One of the key advantages of power washing is its versatility. It can be used on various decking materials. For decks made of non-porous materials like cellular PVC, power washing is an ideal choice, as it effectively cleans without the risk of damaging the surface.

Power washing is perfect for deep cleaning all types of deck material.

The Synergy of Sanding and Power Washing

While sanding and power washing are distinct maintenance methods, they can complement each other effectively. For instance, sanding can be used to address specific areas of damage or to prepare the deck for refinishing, while power washing can provide a thorough clean to remove surface contaminants before sanding.