[edit on Wikidata] Spinal anaesthesia (or spinal anesthesia), also called spinal block, subarachnoid block, intradural block and intrathecal block, is a form of regional anaesthesia involving the injection of a local anaesthetic into the subarachnoid space, generally through a fine needle, usually 9 cm (3.5 in) long.
Calculate the amount of square inches that needs to be rebuilt. The rebuilding cost runs approximately $100 to $200 per square inch. This is determined by the materials used and the labor cost, which you can save on if you are rebuilding the chimney yourself.
I had such a repair done to my almost 100 year old chimney for about $300. He tuckpointed and replaced bricks that had fallen off the top course or two. We had the fallen bricks for him to use. I would have done it myself, but I was afraid to climb to the top of our very steep roof.