Fault repair and rewires

I work in many elderly properties and will often fault find and fix difficult to tackle problems where others have suggested a full rewire. 

Most faults are related to original poor quality workmanship but can be concealed away under floors and inside walls. 

 - The types of faults I can typically find when I inspect and test in an old houses are very varied: For example, poor original workmanship resulting in exposed or vulnerable joints, open circuit cables, high resistance junctions, sockets or switches, inaccessible & faulty junction boxes, inadequate bonding, dangerous lack of earthing, incorrect cable rating, water damage to cables, rodent damage. Old DIY wiring alterations can be a particular fruitful source of imaginative bodges