Homeowners have the option of either doing the work themselves or hiring an environmental consultant to do the work of removing or closing the underground storage tanks or aboveground storage tanks. The costs for such a project range widely, so the best solution is to call several consultants for estimates. By hiring an environmental consultant, the homeowner saves time and can hire an experienced consultant who does tank work routinely. Also, in the event that contamination has occurred as a result of leaking heating oil, the environmental consultant can advise the homeowner regarding the contamination. Empty the pipes and tank.
Many homeowners have the heating oil company from which they purchased the oil, also pump the tank.
Have the tank professionally cleaned before removal. Contact the local authorities to see if any permits are required for tank excavating. Remove the pipes and tank unless removing them would threaten the structural integrity of a nearby building. Aboveground storage tanks can be left in place if the tank is safeguarded against trespassing and the filling portals locked to prevent trespassing. Dispose of the tank properly.