Discussing charges is a sure way to argument and acrimony and comparing hourly charges is pointless as people who charge considerably less per job will often earn considerably more per hour.
For instance some will complete an average fabric suite in around one and a half hours and charge around £65 to £85, or £44 to £56 per hour, slightly more for leather, which takes less time and therefore returns an even higher Hourly Rate.
Others will take around four hours, charge around £120 and end up with an hourly rate of only £30 per hour.
While those who take longer will claim to be BETTER that is most certainly NOT necessarily the case !
So................from a BUSINESS point of view...............who is following two of the main disciplines of any business to best effect ; - TIME MANAGEMENT and PROFITABILITY ?
How many four hour " working " slots are there in a day ?
How many 90 minute " working " slots are there in a day ?
Also, you will almost never clean a suite, without the addition of at least one carpet, just how are you going to spend in there ?
My comment is not suggesting people should work CHEAP as I certainly don't think £50 an hour is CHEAP, but, if my garage, spark, joiner, etc was seeking £100 an hour for what is 95% labour, I would do what most would do and " shop around "
Only my opinion........................don't think so.