Parking lot maintenance includes looking after and taking corrective measures for the upkeep of your asphalt. Things to keep on your radar include crack sealing, sealcoating, line stripping, asphalt repair and asphalt patching. The exterior parking lot lighting, fencing, and curbing also fall into this preventative maintenance category. Parking lot maintenance can also extend to include the exterior structure of your building, and encompass items such as graffiti removal, stucco repairs and commercial painting.