I contacted Nusens as I was seeing brick flaking away from my chimney. They explained that this was because water was getting in the bricks and new mortar, flashing and caulking were needed. They came and did just that. Six months later I noticed brick chips on the ground and holes in the chimney. I contacted the company and was told that the bricks were now the challenge and water was getting into them as they were patterned to match the rest of the house. Now I'm back at square one with a chimney that's still falling apart and $2,000 lighter. The so called warranty is not worth anything.