How to Power Wash Your Patio in 6 Easy Steps

To fully appreciate the magic of power washing before and after results, you want to avoid accidentally drenching and damaging nearby fixtures or landscaping. Cover up any electrical outlets, plants, AC ports, and anything else you don’t want to be cleaned. Use tarps or large plastic bags, tying them off with rubber bands. Do the same with windows, trim, doorways, and any other exposed openings. 

Pressure washers and power washers both create intensely-focused streams of water that can cause personal injury or property damage. Gear up to protect yourself. Cover up exposed skin, wear safety glasses, and avoid open-toed shoes. Never direct a power washer at any living thing: Keep the spray far away from plants, animals, and children. 

Now it’s time to add a cleaning agent if you need it. Some washers boast integrated capsules or chambers for detergent. If not, just spray or wipe the detergent directly onto the patio surface. Make sure the detergent you choose matches the materials that comprise your patio and is designed to be used with a power washer. 

Using detergent in the first place is a personal judgment call and largely depends on how dirty your patio is and what machine you are using. Pressure washers nearly always benefit from detergent, but power washers can get by with just water due to the increased heat. Even power washers require a detergent, however, if you are removing tough stains and a significant buildup of grime.

Now the fun part. Power on that washer and get going, but follow proper cleaning methods. If washing a wood patio, follow along the grain and not across it to avoid splinters. Generally speaking, spray at a downward angle to avoid accidental damage and use broad, sweeping motions. Direct the stream into cracks and crevices between bricks or paving stones to clear out debris. The most important tip, however, involves pressure. Start at the lowest pressure setting available and move up only when necessary. 

Once you complete the power washing stage, it’s time to remove any icky detergent residue. Use a standard garden hose and go to town. Make sure you not only rinse off the patio itself but also anything downstream from it. The soap has to go somewhere, after all.

If any stains linger even after the power washing process, spot-clean these areas with a sponge or wire brush, water, and the appropriate spray detergent. Use the sponge for surface debris and move to the wire brush for tougher stains. The brush is also great for cracks and crevices. If you notice any green or black growth, that’s mold, so mix up some bleach with your cleaning solution and wipe it away. 

After you finish, allow the patio to dry for a day or two before moving any fixtures or furniture back in place.