If the coil is located on the back of the zipper instead of the front it is an Invisible Zipper. Metal zippers consist of individual metal teeth. They are typically made from nickel, brass, aluminum and manganese.
Cost of Repair. The cost to re-line a chimney can be very expensive! Repair costs generally range from about $2000.00 to $4500.00 per flue or more! In a Real Estate transaction, you may have the opportunity to negotiate defects that are disclosed as part of the inspection process.
1 Atekmasonry.com states that the average chimney repair is going to be between $300 to $1,000. 2  Common repair jobs can include rebuilding and replacing bricks or stones, replacing a cap, replacing a liner, replacing mortar, and/or reflashing. In that case, the price will skyrocket to more than$3,000. 2  This does not have to be the case at all. 3  The old saying âan ounce of prevention is worth pounds of cureâ is true when it comes to chimneys. 4  A simple cap replacement can cost $200 to $500. 5  Reflashing the chimney can be with the same range.