Additional Comments:
The problem was my wife and I both had flu, so this delayed the installation. The company were not as flexible as they could have been. The Aperture was done first, we expected the remaining would be done in the next few days as that`s what they told us. It took a fortnight, leaving us with a big hole int eh ceiling. It inconvenienced us a lot. Frankly the administration leaves a lot to be desired. they seemed to be very ill informed about the specifications. We ourselves decided to get hold of the manufacturers and they were very helpful.
The quality of the lift is really very good and the installers were first class, which is why I would still recommend, but the administration is hopeless.