A fiberglass shower enclosure runs into the hundreds of dollars to replace. However, there are several steps you can take to spruce up your old surround and refurbish it at a fraction of the cost. If the shower enclosure is simply dingy, gather some heavy-duty cleaning gloves, a bucket of hot water, and some bleach. Be sure to open a window to allow for air circulation, and then sponge every inch down carefully. Pay special attention to the grout and any cracks in the joints. As you clean, note any large scratches. You can later fill these in with paraffin wax. After this intense cleaning, you may still think the enclosure is beyond hope. Thanks to the wonders of science, it is no longer necessary to replace an ugly surround. You can paint it any color you like with the aid of fine-grit sa