Which structural shell company to choose?

Does that mean you wouldn't rely on management / hourly basis?

No, never, never ever. Neither do my professional clients.

How long does the tiler who is paid by sqm take compared to the one who is paid by the hour? I hope this concrete example helps.

Maybe, but just maybe, you get credited a few € for your student assistant support. But not more than that. Either you take on a trade yourself (or parts of it) or forget it. Everything else is a waste of time because you never get credited the price that makes it economically interesting.

It's actually only about the shell construction (basement, ground floor, and upper floor masonry and the concrete ceiling on the upper floor). Nothing more is to be done with the shell construction company.

Do you have a "qualification"? Skilled in craftsmanship? I think doing a laborer’s job is difficult. You don’t get €50/hour waived either. The shell builder can’t claim you for tax purposes either. And then his foreman might say to him later that he’s not worth even €10, he actually holds us up, and then the resentment is there. If you can, then take out individual parts. Glue insulation or similar.

You can hardly go by the price differences in individual items. A might have his own machine and has charged that in the individual items, B has to rent and has included it in the site setup.

How do you actually want to do the shell construction "on the side" during parental leave? The wife is restricted for weeks, the new baby needs constant care, and your older child probably does too, or is [already helping on the construction site]?

Company A has a price of 214,000 EUR and Company B a price of 227,000 EUR. For Company A, the price for flooring and masonry work is almost 40,000 EUR more expensive than for Company B (materials + labor costs). In return, Company B has significantly higher site setup costs and also a higher hourly wage (which would probably be important for time-and-materials work). What questions would you ask in the conversation with the two construction companies in order to make the right decision afterwards? The companies will hardly admit in which position they have built in their buffer?

Assume that neither has anything to give away and are practically equally "expensive." Then Company B has apparently priced a buffer of 13,000 euros for their different calculation – namely in the sum that, as is well known, only fools reduce. Time-and-materials work requires experienced specialists – I would doubt the seriousness of anyone who calculates cheaply here. However, it is also not clear to me where significant time-and-materials hours would fit in at all, if the owed work in each case is a shell construction and this is to be fully awarded to the respective contractor. I believe, on the one hand, that you read the offers very inexperiencedly, and on the other hand, the price difference mentioned speaks for little meaningful offer bases. In my mind’s eye, they were presented with a 3D amateur plan to which they were asked to attach a price. I also see no suitable deployment opportunity in the shell construction for an inexperienced construction helper – not to mention the overestimated capabilities of such in the wishful dream of competent builders.

[QUOTE="s0nyHess, post: 407421, member: 51507"] It’s actually only about the shell [QUOTE] And in case of doubt, construction defects are your own problem, since the shell builder, let's say, "the untrained idiot insisted on helping and didn’t do it properly." That is the second reason why you shouldn’t do it.