Thanks for the replies.
Don't intend on subbing it out, would rather go it alone than go down that route.
Have already stessed to them that it would be spread over a few days to maintain standards, just as BDCS said.
Good detailed reply Ian, kinda confirmed what I was thinking.
Like the last idea, someone even for just a few hours, show of strength so to speak, then can always say they had to go on another job.
Another thought I had was ringing a small cleaning company in that area, which is not my usual area I would cover, as they got my details from the Internet and see if they fancy a days work out of it? They might even get the regular maintenance clean out of it?
Thanks again.
Paul