Cumming Group is currently providing as-needed cost estimating services for a number of projects at John Wayne Airport, including a $4.2-million exterior lighting improvements project which covers 935,000 sq. ft. and includes structural foundations, new pole locations and power connections, mechanical duct work modifications, and much more. Other assignments include Gate 14 holdroom improvements — which consist of a new ACT ceiling system, upgraded flooring and walls, and new lighting fixtures — as well as the $4.9-million replacement of nine air handling units in Terminals A and B.