Stoneyboy,
Manythanks for your help.Suspect you are correct in so much as I cannot see any horizontal dpc and will use the water repellent solution to see if this will cure the damp patch problem.
problem with damp patch on bedroom wall-just below ceiling level and on inside of chimney flue.The chimney was obvious culprit but had flashing checked & mortar around pot renewed.Also had gas fire type cowl installed.Top courses of chimney,which protrudes full height of house i.e. exterior, suf...
