Storm and tree work in Reading comes with a rule that many towns do not have. The city's code requires an Arborist permit to plant, treat, prune, remove or otherwise disturb any tree in public areas, and a permit is also needed to trim or remove a tree or its limbs if they could fall on people, property or traffic in the public right of way. Permits are written and run for no more than 6 months, so a job delayed by weather may need attention to the dates. The Shade Tree Work Permit Application asks a company for an ISA arborist number and a City of Reading Business License number. Before you hire, ask any company for both numbers and ask who will apply for the permit. Reading has also seen serious flooding on the Schuylkill River, including a crest in January 1996 tied to intense rainfall and rapid snowmelt, so ask how a contractor handles wet ground and fallen trees after a storm. For roof repairs, ask about state registration too.