[brwill2005]

$100 is not unusually high for a full interior detail. You should not be charging more, however, because you do not have the proper equipment to do the job quicker and more thorough. Equipment is an expense, and should actually warrant an increase in your rate. The customer though would be getting a better service and your image would improve. What if someone came to your house to clean your carpets with a shop-vac, a bucket and a scrub brush? You would not see him/her as professional, and the results would not be of professional quality. You would also not approve of him charging you more because he did not have the proper equipment to do the job in a reasonable amount of time.