Welcome to building.co.uk. This site uses cookies. Read our policy.

Indicative costs for connection works
(variation is dependent on equipment ratings)
TrenchingPublic highway£50-£120/m
 Unmade ground£20-£70/m
Underground cableLV cable£15-£30/m
 11kV cable£30-£90/m per circuit
 33kV cable£60-£110/m per circuit
SwitchgearLV£7k-£15k per unit
 11kV£15k-£30k per unit
Transformers11kV-LV£15k-£19k per unit
ContingencyTypically 6-9% of connection works 
EngineeringTypically 4-7% of connection works 
Excludes civil works, reinforcement, diversions, wayleaves and easements