The company had been working to replace a number of damaged electricity cables to buildings along Main Street, following a number of site inspections over the summer months.
NIE also replaced outside electricity cables running along the top frontage of buildings in the area.
Councillor Clarke had previously asked NIE – which owns and maintains the exterior wiring – to inspect the exterior cables as a number of pieces of insulation on electricity cables on Main Street buildings were showing signs of wear and tear.
Councillor Patrick Clarke said: “I welcome NIE final completion of works to replace damaged electricity cables following a complete street survey of Main Street Dundrum.
“I had requested the street survey to identify any buildings along Main Street which NIE were not aware off that had damaged insulation on outside electricity cables.
“The majority of buildings along Main Street Dundrum are listed and it had been noted that some pieces of the insulation outside along certain sections were very badly worn, missing and damaged, and it was imperative that NIE carried out works to replace the damaged electricity cables.
“NIE had previously carried out repairs to some buildings periodically along Main Street to replace exterior electricity cables which had become damaged through age, wear and tear and the buildings being along the coast subjected to the weather elements.
“I am very pleased that the replacement of exterior electricity cables to buildings along Main Street Dundrum has now been fully completed by NIE following my concerns and representations.”