I'm going to give them a call in a min, yo see exactly what they want doing. I would prefer to visit, as this is going to be a 'big job' (clients words), all i can think is SPIDERS!
anyway i believe it is completely empty, Its on the outskirts of where i cover, so i need to price in 3 cleaners and 1 van + driver, travel expenses, tea breaks, supplies + equipment, and anything else i can think of. They realise that its going to be quite costly, thats why they want me to ring them to get the full run down of tasks.