the section i think you need is:
<< the company will do all it reasonably can to meet dates given for delivery/installation. In the case of unforeseen circumstances, beyond the reasonable control of the Company, such as delays in receipt of stock or the availability of the designated installer, the Company will contact the customer and agree an alternative date. If the customer cancels the fitting date within 24 hours of the agreed start or makes it impossible for the installation to go ahead (eg because of incomplete building works) then the company reserves the right to charge reasonable costs. >>
but we also have:
<< It is a condition of this Contract that the customer will allow the Compnay's tradesmen and supervisors free and unrestricted access at mutually agreed times to carry out all works and services relating to the installation. If such access is not granted the Company may treat the contract as ended.>>
(How does one define 'free and unrestrcted access'?
Extra info .. Mother now states there were two zippered laundry bags in the room, a tumble drier in the airing cupboard and a bathroom cabinet.
The cabinet was on a wall not affected by the work. Plus two laundry baskets ..again lightweight wicker that could easily be moved.
Mum is of a generation that expects workmen to do more than the precise fitting and she felt what was left in the room was not an issue.
Mum said she's move the bags but the younger lad so she shouldnt .. and that they could do that. But then - the older man overruled him and they left.