Its coming in so fast and i have gained some great contacts and decent priced work in just 6 months and already it is overtaking my domestics on a daily take and now all my domestics are getting in the way and falling behind.
My domestic work is the nuts even though i find commercial better so will only sell if i get a good price! If not ill have to employ a few more to do it whilst i carry on with commercial but id rather just focus on commercial with my all as i have found im verey good at gaining the contracts and contacts, im hitting more than the telesales girls i use.
That's really good mate. I know a couple of guys who do just commercial and they do very well.
Personally if it was me I would do all I can to keep the domestics as well. A guy I know lost a £40k a year contract overnight due to a company going bust. It didn't send him under but he was worried for a bit and had to build it back up.
Commercial is high gains definitely but it also comes with high losses - but I'm sure you know that anyway 
Out of interest what is your domestic work worth and what would you sell it for?
Id only sell if got 10-12x which i know is a long shot but it is super work.
Will test the water after march to see what interest i can build up.
For that sort of money it would possibly need to be a buyer who is already employing and has deep pockets; someone who sees it as a longish term investment to profit from otherts doing the manual work rather than someone making a good wage from a partnership or as a sole trader.
When I bought work previously, I found that some customers saw the change of cleaner as the right time to terminate the service. They seemed to take the view that if they were having a new cleaner, they would prefer it to be someone of their own choosing. I suppose it's a bit like when a new person moves into our old customer's house - some of us might view it as a time to increase the price (or if it's a very awkward job - to not go back).
Still, that's a buyer's problem.