Most franchises are based on licenses. The ChemDry license is an area containing 60,000 people. They reckon you can turnover £54,000 on one license just carpet cleaning.
Your fees apertain to one license only. You need multiple licenses to make it pay.
Don't know much about the other ones. The biggest bugbear with a franchise is when they say jump, you jump. Then theres the extras to pay for, digital pens for each technician, about 250 quid + so much per month maintenance contract, trackers for vans.
Some people are happy working this way, me, I prefer my freedom to do what I want. One lesson I have learnt, never put all your eggs in one basket. Then if something goes tits up you have other income streams to keep you afloat.