We hired Peter to install a Napoleon gas insert. He was to clean the chimney before installing liner as per contract. He didn't claiming it looked ok. While retrofitting my opening, he broke one of the bricks and while removing the damper broke all of the mortar so all brick are completely loose. I have to pay someone else to repair the fireplace which could be anywhere from a range of $300 - $1,200 from recent quotes I have received. He said he couldn't possibly fix it himself other than completely demolishing bricks and then install his cast stone mantle which we didn't want to do. After installing insert, he told me that it wasn't a Napoleon but another make called Continental (which Napoleon uses as another name) as if I could make him remove it at this point since my mantle is now broken. There was no offer of any kind of discount. I would not recommend his company for retrofitting gas inserts into existing fireplaces. Perhaps it would have been better if it was a completely new install but that was not what we were looking for, If he was unable to do a retrofit, he should have said so at the start and we could have gone with another vendor.