To keep your wooden pergola bistro set in top condition, regular maintenance is essential. Start by cleaning the set with a mild soap and water solution, using a soft brush or cloth. Avoid using harsh chemicals or abrasive cleaners that can damage the wood. If the wood becomes stained or discolored, you can sand it lightly and apply a fresh coat of wood stain or paint to restore its appearance. It's also important to protect the set from extreme weather conditions by using a waterproof cover or storing it indoors during harsh seasons. Regularly inspect the set for any signs of damage or wear, and repair or replace any broken parts promptly. With proper care and maintenance, your wooden pergola bistro set will continue to provide you with a comfortable and stylish outdoor seating area for years to come.