Christchurch families who can't afford wireless internet may now have the chance to get it installed.

Spark Foundation and the 20/20 Trust are bringing subsidised broadband to eligible families in Central Christchurch so more students can keep up with their digital skills.

They'll receive a modem and wireless broadband connection with 30 GB for $10 without a fixed term contract.

Addington.net's Greg Smith says the Spark Jump project will help close the skills gap between families who can afford home broadband and those who can't.

Eligible families are those with children up to the age of 18 with no current broadband connection.