Most oven cleaners I have spoken to are booked 3-6 months in advance, this is due to repeat customers, as when you clean the oven you rebook it in, so after a while you are always booked.
im thinking of getting into oven cleaning too.How much could you charge for a single oven/ double oven? I wouldnt know where to star with the priceing
yes 650 is a bit steep, but taking into account that you could easily do 10 in a week for about 45 quid, you can easily get that back in a month and easily be in profit in 6 months