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 Most chimneys are going to be within 20 to 25 linear feet. 2  The price for chimney relining depends on the type of materials that will be used for the job. 3  For example, a chimney that is 20 linear feet will cost anywhere from $960 to $1,640.