Atlantic Chimney Inc., servicing the South Shore and Cape Cod, specializes in relining chimneys with damaged or deteriorated clay liners or unlined chimneys. There are different alloys and gauges, depending on the application. There is also a "smooth wall" flexible liner that has a 20% added flow capacity. All the stainless steel liners offer a Lifetime warranty.
A less expensive alternative to stainless steel relining is aluminum, which can be used in certain gas appliance installations. Aluminum liners come with a 15-year warranty.