Lead has been used as a roofing material for over 200 years and is still in use today. Repairing and restoring lead work requires a lead work specialist who can accurately identify the problem and use their expertise to repair or if necessary renew the faulty area.
Lead flashing around chimneys and guttering or at junctions between roofs are problematic and should be tackled by a qualified craftsman. Particularly in cases where it is necessary to use heat to repair the area.
Arranging an inspection report for your roof if you are concerned about its condition is an excellent first step. Engaging a company that can then carry out any roof repairs will save time and the need to duplicate work.