Construction costs are currently skyrocketing

2022-08-10 12:05:54

I just received the offer for the earthworks and was shocked at how much the costs exceed the plan.

Removing 250m3 of topsoil, excavating 120m3 of earth for the house, and bringing in 390t of basalt gravel + laying rainwater and wastewater pipes is supposed to cost 33,000 EUR including VAT. That does not include earth disposal...

Do you consider that realistic?

Realistic is always the comparison on-site with other, identical offers.

Certainly, your offer is overall high, but there is also quite an extensive scope.

Why basalt gravel? What about RC material?

The pipes seem expensive, yes, but these are flat rates including labor. That means with an excavator and possibly manual excavation if necessary.

With 90m and all the bends, one can also assume that quite a bit of work is involved regarding drainage. Long distances require a lot of excavation because of the necessary incline; every bend is work (and you don’t exactly have few of them).

Maybe simplify the drainage.

2022-08-10 13:07:26

yeah, it's salted.
For us, basalt gravel is extremely expensive, for example, diabase costs a third.

2022-08-10 13:08:16

General consensus, 14.5k gross okay? Five words are missing

So, now please give an opinion on my offer. ;-)

2022-08-10 13:14:11

Do you have a breakdown for the positions? So 390t basalt gravel alone is already around 8000 euros.

Actually, last year I inquired about basalt gravel 16/32 through wholesale. However, I wanted to decorate the garden and driveway with it.
Net price per ton 25€. About 500 € transport costs per truck.
And I only needed 5t.
It really depends on how far the distances are and where, for example, the quarry is located.

2022-08-10 13:16:30

A realistic comparison is always the on-site comparison with other identical offers.

Certainly, your offer is high overall, but it also involves quite a bit of scope.
Why basalt gravel? What about RC material?

The pipes seem expensive, yes, but those are flat rates including labor. That means with an excavator and, if necessary, manual excavation.
With 90m and all those bends, you can also assume that a considerable amount of excavation will be required regarding drainage. Long distances require a lot of excavation due to the necessary slope, every bend is work (and you don’t have exactly few of those).
Maybe simplify the drainage a bit.

A layman's question about the earthworks?! Could it be that the prices for earthworks are currently becoming more expensive, possibly because the soils are becoming harder and more difficult to model due to increasing dryness, and possibly the wear on the equipment is increasing, or does it not matter to an excavator how hard the ground is?
I think for someone who partially has to dig with a shovel themselves, it probably isn’t entirely irrelevant how hard the soil is.

2022-08-10 13:36:54

Stones are wet and dry hard. A shovel has to handle both scenarios. Topsoil doesn't suddenly turn into concrete just because it's a bit drier for a year. ;-) They may have to charge higher prices/cbm because the bulk material is now dried out and lighter, and the builder can no longer be charged for the moisture (in the bulk material).

Expressed figuratively: gravel wet 1.3t/cbm vs. gravel dry with 1.1t/cbm because billing is usually done by the ton.

Construction costs are currently skyrocketing

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