I have never done work for the owner, but i'm quoting it through someone i've done a fair amount of work for who is good and doesn't even get other bids, I just price it and i've got the job and is ok with paying a bit of a premium for good work. I don't know for sure but I think as long as they think my price is reasonable, I will have the job. I know at least no "new Canadians" will be trying to undercut it as the guy absolutely hates them and won't have anything to do with them. It would definitely be big enough some of the bigger companies would bid on it, no idea what they charge never seen one of their quotes. I get really good pricing on bins so as long as they didn't want the job for free I don't think they'd be pricing any lower.
I don't know why he didn't want me to see the inside, assuming just the hassle of arranging with owner. I was able to look into the crawl space but that's it. I've never spoken to the owner. I did say and it will be very clear in my quote it is quoted based on the building being empty, and upon inspection to make sure no one is inside, if it is full of stuff extra charges will apply. It's not how I want to do it, but at least it covers me and i'm not doing a job for free. I've got screwed a few times, I had one house that the basement was piled right to the joists. It took like 8 40 yards bins for a 800 sq/ft bungalow. I do find demos a bit of the you win some you loose some as it's impossible to estimate exactly what it weighs. But on a job this size I don't want to be on the wrong side. The city requiring removal of asbestos helps as many houses are gutted to studs, and they cannot do the abatement on houses if they are full of junk. Although I had one they just took everything out of the house and put it in the yard....
I use 40 yard bins only, 30 is too slow. Loading with my 210 the height is no problem. I've had as high as 14 tons a few times, they generally only complain when they are over 12. A lot depends on the company and the driver. I had one driver who tried to show he wasn't able to pick up a bin and the front of the truck was coming off the ground and it turned out to only be about 12 tons simply didn't know what he was doing. 14 ton bin won't do that with a driver who knows what they are doing. Haul away all concrete with tandem dump trucks as much cheaper then bins. The big guys like Visco and All west, etc have 80 yard demo trailers but one advantage of this job is it's very close to the dump my guy uses, and much further from all of the demo companies yards. Nothing specific for the quote, it's just a guy who owns the building and wanted helping finding a contractor from the guy he knows as he doesn't know anything about it.
I'm pretty close to 100 yards/1000 sq/ft. When quoting houses I go between 200-250 sq/ft for 40 yard bin depending if it's two story, bungalow, shape of roof, etc.
Going through the numbers I was coming up with worst case scenario, 30 40 yard bins averaging a weight of 10 tons. Obviously assuming building is reasonably empty. I would expect it to be actually about 25 bins, but being really safe with 30. You guys think that's a pretty safe number? A really heavy demo I average 10 tons a bin, but most are around 8.