The four-year agreement will cover all seven BAA airports across the UK and will include a 24-hour helpdesk service.
“We selected Carillion IT Services due to their expertise, experience and reliability combined with an ability to provide a quality of service that will benefit not only our business and staff but also the millions of passengers travelling thorough our airports”, said Bob Gerrard, network projects implementation manager at BAA.
The cabling will carry voice, data and other airport-specific network systems.
Carillion has already provided infrastructure and cabling services to BAA's three Scottish airports.
Earlier this year BAA signed a five-year contract with LogicaCMG to manage its software applications.