When we move we will be taking our stove with us but because I dont want to disturb our roof, ( we have a rubber membrane roof), we are leaving the diffuser at the ceiling and the triple wall/ vent cap on the roof in place. Whoever buys the place will have the option of installing another stove or removing the upper mechanicals.

If you want yours removed, I would seek out a reputable handyman that has experience in siding repair, carpentry, roof repair as well as painting. Make sure you check them out pertaining to the experience by getting references and referalls from friends, family, co- workers, etc who have had similar projects done and they are satisfied with that persons work. Make sure they are insured and legal!