Depending on the extent of the damage and the number of layers of paint or stain which have been applied to the wood through the years, you may be able to restore your teak at home. If you find that there are several layers of paint, it is better to have a professional restore your teak wooden furniture.
Stripping wood requires a lot of time and labor. Teak wood, while a hard wood, should not be machine sanded by an inexperienced individual. The paint should be sanded rather than stripped with chemical solvents as well. Before beginning the sanding, wipe down the furniture with a damp cloth and allow to dry. Using moderate pressure and medium grit sandpaper, begin to sand the wood to remove the paint. You should try and sand with the grain of the wood when the grain is visible.
You want to sand the wood to remove the paint as well as the top layers of the wood to expose a fresh layer of the teak. Teak is a dense and tightly grained wood, so this exposure will not take long. Teak is rich in teak oil which naturally preserves the wood as it goes from the center of the wood to the outer layers of the wood. This process is stunted when the piece is painted.