Stage One was responsible for providing new presenter and contestant desks and building the set backing panels.
The panels were mounted onto trucks to "enable a smooth transition between shows as they are moved in and out of the studio".
The company also provided a central floor motif for the set that consisted of a backlit polycarbonate graphic, along with incorporating further backlit graphic elements throughout.
It also refurbished several existing items, including the iconic Countdown clock, before installing the set in the YTV studios in Leeds.
Sky Sports presenter Jeff Stelling took over as host of the new show, replacing legendary entertainer Des O'Connor, who announced his departure last July.
Stelling is supported by maths graduate Rachel Riley who replaced thinking man's pin-up Carol Vorderman.