It is an old trick and 90% successful, some agency have contacted them...what does it cost you to employ a spark? err about £30 per hour all told...ok they say, we will send when needed @ £25 per hour, you have no worries, we will sort ni tax blah blah, no holiday payments to pay etc etc. You pay us once per month etc etc...
I'm not having a go at subbies, but that is the way all industry is going...'the new labour way' it sucks. But you cannot blame employers, with the crazy employment laws and very difficult to comprehend legislation. Who can blame them?
There are still some 'old fashioned' firms still going, but even the big ones are 50/50 on the books/subbies.
It is a con, I've done both but would always prefer on the books.
Just before I decided enough is enough, working subbie for some outfit doing tesco stuff...I turns up, have you got a 110v drill 'yes' have you got a 18v/24v drill 'yes' have you got a step ladder...err **** off, the next question will be have I got a cherry picker..get ****ed find someone else..and I would pay money to see the expression on the companies forman's face again.
The last job I worked on was a cancer hospital, x-ray dept. Concrete walls 3 feet thick in places, 6 inch lead lined doors, I have to get a micc cable within, to about 12 units..without making a noise..of course impossible. So they ask me to work out of hours (they don't give a **** about patients, as long as visitors can't hear or vip visitors) so anyhow ok I don't mind, 5am till 12 noon @ time and a half..no probs 5 days, no noise after 9am
I liked the shift it was ok, a doddle in fact more money more time off, no one wanted it on our company but 2 of us agreed to do it. I had been working their for a few months previous, so knew the building and stuff.
It took approx 2 months first fix. Guess what, when first fixed I was made redundant along with 6 or so others on the firm.
But it seems the subbies fetched in to do second fix did not understand my cable identification method -

and the company invited me back for 2-weeks on double pay...get ****ed, you have already shown your hand, i'm busy with my own stuff now, and have not looked back since.
Loyalty goes a long way in my book