An oil tank sweep is a thorough inspection of an underground or above-ground oil storage tank to determine its condition and identify any potential leaks or contamination. This process is essential for homeowners, especially those with older oil tanks, as it helps ensure environmental safety and compliance with local regulations. By conducting an oil tank sweep, you can prevent costly-up efforts and protect your property from potential damage caused by oil spills. Regular inspections also provide peace mind, knowing that your tank is functioning properly.