Asheridge Communications has a solution for saturated wifi networks-- the echoBox, using MoCA (Multimedia over Coax) to improve internet connections without the need for rewiring.
The echoBox sends ethernet signals across in-home coax networks (usually star wired from the aerial splitter in the roof), turning all coax points into useable ethernet sockets.
Maximum connection speeds reach up to 200Mbps (CAT5e quality) to 16 rooms in a house.
It needs no new cabling, making it ideal for retrofits and customers without access, budget or desire to re-cable the entire home.
The echoBox adapter is a discreet accessory, small enough to fit the palm of the hand and thus easy to hide behind display screens.