Big Sky Chimney sells and installs metal chimney pipe for replacement of old cinder block chimneys in . We follow manufacturers installation requirements and NFPA 211 Standards for every installation making your installation safer, and giving you peace of mind. Metal chimney pipe is also know as Class A Chimney, and is a better solution in the seismic zone we live in. Call us to learn more about chimney liners, and metal chimney pipe.