I am on the panel of a domestic cleaning trade association (if you want details pm me) I also run a private cleaning company which is growing fast, I have been in the industry for 17 years now so this advice I know to be sound.
I have posted on this topic a fair few times because I would hate anyone to become what is known in the trade as a 'busy fool' ie someone who is working all hours but not in actual profit just because some people out there would have you believe £10 per hour is too high a price for cleaning! These clients are NOT your clients, they will become your downfall and your business will stall down the line, if you win them on price you will lose them on price when you find the cost of doing business demands you to raise everyone. start as you mean to go on. Cleaning is not cheap.
If your plan for growth includes employees down the line you will need minimum £15 per hour, once you get a good reputation this price is fairly easy to command as it is a 'sellers' market' out there! You MUST provide quality detailed work, as you need to deliver a premium service to command the amount you will need for growth.
Do not fall into the trap of thinking your hourly rate is your wages, your actual wages will be the last thing you can draw out and will be a percentage of the hourly rate your service is priced at - cost everything out and do not underestimate employees costs, factor in statutory obligations, employees are not easy to come by and good ones will not accept minimum wage then you must add on the holiday and sickness pay plus factor in possible maternity etc you will find it will cost you about £10 to employ a person.
The you have insurance obligations, uniform, supplies and equipment and eventually VAT to factor in - after VAT you will NEED to be chargein £18 per person per hour! My friend has 30 employees (she's adding two more as we speak) she is charging £18 per hour and cannot keep up with demand - her company has a great brand presence in her area you see and that it ultimatly what you will need.
We are much smaller as yet, just 7 employees, we charge flat rate but must bring in at least £15 per hour - we are about to hit VAT so prices must rise but we literally cannot hire and train fast enough to keep up with demand.
Price-shoppers are NOT your clients people willing to pay what it takes to deliver fully manages premium cleaning and a high level of customer service are your clients.
Alternatively, if you wish to run an agency instead of employing your cleaners you can charge less as you will be sending self-employed cleaners to homeowners, this cannot be a fully-managed service by law as you cannot train or equip self-employed cleaners so you will not have the level of control over the service but it is cheaper to run and therefore your prices CAN then be as cheap as £10 per hour.
Your business model is up to you - we went high-end and never looked back but either model can work it depends on which you adopt, there are different clients for each type of cleaning business model.
Phew anyway - wishing you well, if you need support pm me!