Hello. In retirement and moving and renovating a house in the Malvern Hills AONB a few years ago. I got a roll off roof Observatory, built by Alexander's shed observatories, with motor controlled roof. It is well equipped with two large computer-controlled telescopes RCOS and Mead, separate control room, all sky camera and continuous sky monitoring SQM. Just recently, with all the rain, water has splashed from the concrete plinth and soaked into the floorboards through the walls. The floor has collapsed between the joists. I've had a builder look at it and until we can raise the floor remaining, We don't know the state of the joists. It is only a few years old. I can't very find any sign of Alexander's shed observatories contact address on the Internet. I'm not sure whether to claim on insurance and lose my no claims bonus, have discussed this with the house insurance company. In retirement, my money is very limited. The cost of chiselling out the floor, which appears to be sandwiched under the shed walls, and replacing the floor and waterproofing will be considerable. Any advice or help would be welcome.