Last year I moved into a 1930's house. In Jan a local builder repointed the ridge tiles and the chimney stack. Since then I have had a problem with damp in the bedroom on the wall and ceiling next to the chimney. Having given up on the first builder, tried another two who gave me the run around. I finally had a roofer recommended to me. Last week the roofer replaced the lead flashing on the chimney and the soakers. We were hopeful that this would resolve the issue, but after a day of rain, the damp patch is as bad as ever. Could the problem be the chimney stack, as there is no apparent wetness/damp in the roof void above the bedroom? The chimney stack is vented with a covered cowl. Any advice would be much appreciated.