[G-spec]

my dad's company has done a few of these, I remember specifically I demolished one exactly like yours all by myself with nothing more than a hammer and crowbar, had to use sawzaw to cut through some bigger pieces then loaded the scrap up for the garbage depot, it only took a few hours doing it by myself... that looks to be roughly 2 maybe 3 garbage depot loads in a normal size cargo van

so I guess what they're charging a lot for then is the cementing and digging, I don't think all that is a few grand though, and also there isn't much to spend in materials on this type of job it's about $200+ roughly for disposal fees, and anywhere between $500 and $1000 in materials, so basically you're paying 5-6 grand on labor, which is a tad bit high especially when the majority of the labour is not that difficult, like I said took me a few hours myself to do

that's my honest answer to you since I'm in this business