RUGS we don't do anything else but off site charge 4 times as much and have no problems, last rug we just gave a run over went yellow as it was white un treated wool and was left in a airless room for 2 weeks as they went on hols. It took the tech 4 hours to get it storted out.
Moral was no more "could you just" but lots of " that needs to be done in our rug plant to do the job properly" Strangly enough 3 months on, and no one has said no!
We do many just building it up at present, but it still pays all the bills on the unit. Which we had anyway. and we do them in any down time and if we don't get that we do a sat morning.
Looking for a main road site next, move the office and all to one location and do a cash and carry service
as for contracts, well that would be telling

Picked up a rug 2 mile from us cleaned it and returned it cost £102 would have offered to clean it in house for £25-30 previously. Customer was trilled we had vac'd the back as well as the front and gave me a £5 tip!
Got to say i was'nt my idea to do this but am very glad we did.