About This GalleryVarious stages of chimney repair. You will notice that our flashing is done in copper, Not aluminum. We also cover the flashing with NEW lead. We never re-use old lead. This is an extremely popular repair since most chimneys are sealed in tar which should Never be used on a roof due to drying and cracking over just a short period of time. It is also popular since most leaks occur around protrusions in the roof such as chimneys, vent pipes etc.