Thanks for that.
So I guess really we may be better off pushing for more domestic cleaning work and if necessary taking on extra staff.
My only issue is that I find the domestic work is not that lucrative in terms of profit margins. After charging the client £9 an hour and then paying £7 to the cleaner, then taking off other expenses we are left with slim pickings.
Another area I had looked at is providing a cleaning and decorating service for landlords. For example we would go in and clean out the property then paint / paper as required all as part of the package. Would this appeal to landlords or are they more likely to carry out the decorating themselves?
With the greatest respect, you haven't done your sums at all.
Firstly, you won't get much in the way of cleaners if you're paying £7 per hour as "self employed" because that is (without doing the maths) just about under the national minimum wage, though I know some are glad of any money these days.
Secondly and irrespective of the first point, you are not charging enough. You cannot possibly make a profit at these prices after all costs are taken into account. As an example, Molly Maid runs an effective hourly rate of around £17 to £25 an hour and many successful operators in this field, not one man band cleaners that is, are charging the best part of £20 an hour to the client.
If you say your clients will not pay that, then you should consider stopping right now because if you are providing a quality service with fully insured and legitimate employees, providing all materials and so forth, then £15 to £20 an hour, either billed hourly or as a per property clean, is par for the course. People will pay for quality and service.
I wouldn't worry about diversifying. You need to work out a price which delivers full coverage of costs and provides you with a reasonable profit. Of course, your existing clients may leave for a cheaper service and you will need some thought as to how to transition them to the new arrangement. Personally, I'd accept that all will leave and I'd keep them on the old rate only until I could deploy the cleaner elsewhere. If they stay, then all well and good.
If you can't use Excel, then learn. If you can use it, then start building a spreadsheet with all your costs in it to work out where you need to be charging to make a decent profit.