Nada...
I have always done them myself..I used crowbars to dismount them, and ran the tire and rim over with the truck to break the beads!!...I eventually bought a manual tire changer off a friend for 40 bucks about 25 years ago..still use it to this day,but it can be a ballbuster!..if I'm feeling lazy or my back is sore I go visit my friends ,2 have tire machines they got from gas stations when they upgraded..I bring them beer or coffee,and I can use it all I want..
It pays to have friends with tools and equipment..like they say,"A friend in need,is a friend indeed"..
Its always been 10 bucks to have tires changed around here--I thought it was bad when it was 10 to pull one off,and put the new tire on!--now its 10 bucks EACH WAY!

...so I learned fast how to do my own!..only problem I've had doing them at home is getting beads to seat on wide rims with stock tires..I put them over an open trash can,push down on the tire and rim,and used the air trapped in it to pop the beads..if all else fails,there is always starting fluid!
BTW--anyone priced valve stems lately??--
I used to buy them from a bulk box of 500 at swap meets for 50 cents or a quarter apeice..now Autozone gets 3.99 just for two plain rubber ones!..

..thats robbery!.."Balancing" a tire at most shops is 10 bucks per tire too!..and they put used weights on!.

..used tire prices are skyrocketing too..

..