We have a leaking chimney which is causing us a lot of problems.
Our house is Victorian and older, and is in a very exposed moorland location near Sheffield, UK. A chimney at the north end of the house leaks terribly. The stack is made of millstone grit. Over the six years since we moved in, we have had the flashing replaced; had it repointed; had the pots and concrete flaunching replaced; and had the stack painted with sealant and water repellant. This last was done about a year ago. The chimney dried out over the summer but is now leaking again. When it is really bad, water pours down the inside walls. It often waits until after the rain has stopped to start leaking, as if the chimney is soaking up the water like a sponge then releasing it later.
We don't want to remove the chimney as it would spoil the look of the house, and even if we wanted to, the planners would probably stop us.
Can you think of anyting that we could do to stop this leak? We are at a loss!