When faced with this unfortunate situation, you could hire a company that specializes in this type of cleaning. There are several cleaning products to tackle the problem. Here, we channel the spirit of HGTV and provide helpful hints for erasing the damage.
An easy, although slightly costly, way to upgrade your garage is to install a new opener and motor. Even if yours seems to be in good repair, the new technology has made it easy to see why an upgrade is always a good idea.