How do I remove BBQ grease stains from my Vancouver deck?

BBQ grease stains on decks are common in Vancouver, and the removal method depends on your deck material and how long the grease has been sitting. The key is acting quickly before the grease penetrates deep into the wood or sets permanently on composite surfaces.

For cedar and pressure-treated wood decks, start with dish soap and hot water. Mix a few tablespoons of grease-cutting dish soap (Dawn works well) with hot water and scrub the stained area with a stiff brush. Work in the direction of the wood grain to avoid scratching. For fresh grease stains, this often does the trick. If the stain persists, sprinkle baking soda generously over the grease spot and let it sit for 15-20 minutes to absorb the oil, then scrub with the soap solution.

For stubborn or set-in grease stains on wood, you'll need a degreasing agent. TSP (trisodium phosphate) is highly effective — mix according to package directions and scrub the area thoroughly. Always wear gloves and eye protection when using TSP. Another option is a commercial deck cleaner like Behr Premium All-in-One Wood Cleaner or Olympic Deck Cleaner, which are formulated to handle grease and food stains. After cleaning, rinse thoroughly with your garden hose.

Composite decking (Trex, TimberTech, Fiberon) is actually easier to clean than wood. Most grease stains come off with warm soapy water and a soft brush. For tougher stains, use a paste made from baking soda and water — let it sit for 10 minutes, then scrub gently. Avoid abrasive cleaners or steel wool on composite surfaces as they can scratch the protective cap layer.

Vancouver's climate considerations are important here. Our persistent humidity means grease stains can attract mould and mildew if not cleaned promptly. After removing the grease, ensure the area dries completely. If you're dealing with an older wood deck that hasn't been stained recently, the cleaned area might look lighter than the surrounding wood — this is normal and will even out when you do your annual deck staining.

Prevention tips for Vancouver decks: Place a large BBQ mat or outdoor rug under your grill to catch drips before they hit the deck. These mats are especially valuable on our expensive cedar and composite decks. Also, consider the placement of your BBQ — avoid areas where grease could run toward the house or pool in low spots where water already collects.

When to call a professional: If you have extensive grease staining across a large area, or if the grease has penetrated deeply into aged, unsealed cedar, it might be time for professional deck cleaning and refinishing. This is often more cost-effective than trying to spot-clean multiple problem areas, and it's a good opportunity to apply fresh stain protection for Vancouver's wet season.

For severe stains on high-end materials like ipe or aluminum decking, consult with a deck restoration specialist to avoid damaging the surface with the wrong cleaning products.