Those who do professional chimney restoration have to build scaffolding in order to access the work. For this reason alone, the distance between the surface of your roof and the structure itself will play a role in determining the price. The more scaffolding they have to build, the more you’re going to have to pay. The same holds true for the distance between the edge of your roof and the stack. More distance means more scaffolding, which will generally translate into more money spent.
The materials they have to use in chimney restoration will play a role in determining how much you’ll have to pay. Most experts like to use the same materials they are replacing, although that is somewhat open to debate with the homeowner. Still, if you’re shelling out the money for this level of repair work, you probably want it to look the same or better than it did before. No one wants to spend this kind of money, look to the roof, and realize they can hardly tell a difference. Still, it’s worth talking to the professionals. They may be able to steer you towards a brick or stone that will look good while not breaking the bank.
If the chimney restoration company can come in, tear off the very outer section of the structure and replace it with new brick, you might get away without spending too much. If they have to tear down several courses, it’s going to cost more. More often than not, water has leeched into the brick, causing it to eventually shear. When this happens, it is unusable and you must buy new materials.