Cleaning with a Power Washer for Trex Decking

If you're thinking about using a power washer for trex decking, you've probably heard some conflicting advice about whether it's actually safe for the material. Most of us choose composite decking like Trex because we want to spend our weekends lounging on the patio, not scrubbing it on our hands and knees. But over time, pollen, dirt, and those inevitable barbecue grease splatters can make even the best-looking deck look a bit dingy. The good news is that you can absolutely use a pressure washer to get it looking new again, but there's a specific way to do it if you don't want to end up with permanent swirl marks or fuzzy, damaged boards. ...

April 30, 2026 · 7 min · Vicky Mac