Based in Northbrook, Illinois, Deck Doc Inc. brings more than 20 years of experience to customers who are looking to have any type of wooden product sealed, stained, painted, water-resistant, or cleaned (pressure-washed). Here at Deck Doc, we consider ourselves specialists when it comes to sealing, staining, waterproofing, and cleaning all types of wooden products, whether it's patio decks, furniture, siding, or window frames. You name it; we can do it, small or large.