WRITTEN complaints against Northumbrian Water fell by more than 1,000 in a year, according to new figures.
The Durham City-based utility company received 4,997 in 2011/12, down from 6,193.
A report by the Consumer Council for Water (CC Water) shows complaints against all water utilities nationally dropped by almost 12 per cent last year, reaching their lowest since 2005.
The annual report also reveals 163,027 written complaints were made to water companies across England and Wales for the year up until the end of March, compared to 185,140 in 2010/11.
Complaints have now fallen for the fourth consecutive year.
Tony Smith, of CC Water, said: “While water is currently a monopoly industry, companies must not rest on their laurels and assume that they can get away with delivering poor service.”