We have a composite ( plastic deck) , we contacted Deckaidpro for a quote...pricing was very good and fair. We hired them and couldn't believe how awesome are deck looked after they got done with the job. I never thought it could look so good again. We had black blotchy spots all over the deck, it looks like new again. We really like that they offer a yearly maintenance program. We will definitely have them back again. A very satisfied customer ! Dave P.