New build and refurbishment
For businesses that build for general contractors and architects, bill in phases, and wait a long time for the last per cent.
| Item | Quoted | Built |
|---|---|---|
| Socket T13, flush-mounted | 142 pcs | 156 pcs |
| Cable TT 3×1.5 | 2'400 m | 2'615 m |
| Distribution board UV 3, rebuild | 1 lump sum | 1 lump sum |
The week you know
The development was handed over in the spring. The measured quantities have still not been reconciled: what was quoted is in one file, what was built is on your people's job reports. The general contractor has held back five per cent as retention, and nobody in the firm knows off the top of their head when the warranty period ends. The four months for the contractor's lien have probably passed without anyone having looked. You write the final invoice on a feeling instead of on figures. And on the next building it all starts again.
What changes
NPK and SIA 451 for the structure, Steiger and ELDAS articles for the content. Tender texts are read in instead of being typed out item by item.
Quoted and built stand side by side. Anything installed on top stands out while somebody can still explain it — not first at the final invoice.
Partial invoices take the position from the measured quantities, interim payments are credited, the early-payment discount is on file. The eBKP cost plan stays traceable throughout.
It is kept per property, with the day the warranty period ends. The software speaks up beforehand and puts it up to be claimed instead of leaving it lying there.
The run
Five stations, one record. The quote is the yardstick for everything that follows — the measured quantities, the partial invoice and the retention all hang off the same items.
The planner's bill of quantities is read in. A SIA 451 file (.crbx) and a Steiger file (.DAT) are read line by line, entirely without AI — the item number arrives exactly as it was tendered. Only a photo or a PDF of the bill of quantities goes to the AI.
Sonnhalde_EtappeB.crbx
Format SIA 451
412 items read
No AI · numbers unchanged
NPK and SIA 451 for the structure, Steiger estimating items and ELDAS article master data for the content. The AI proposes line items — from the job text, the messages on the job and up to three finished documents of the same job type, so that the quote sounds like yours. Every proposal has a tick box, and what is ticked is added rather than replacing anything. It proposes the introduction, the closing text and the work description in the same dialog.
Quote 2026-0431
Steiger 24.150.0210
Socket T13, flush-mounted · 142 pcs
CHF 38.50 from your own article list
Suggestion 12 lines · 9 ticked
Hours, materials and photos hang off the same job as the quote — even with no signal on site. Twenty job reports over six months do not make a second record, just the same one getting longer.
Job 4471 · phase B
Job report 14 of 23
7.50 h · R. Frei
Materials Cable TT 3×1.5, 180 m
Quoted and built stand side by side, item by item. Anything installed on top you see while somebody can still explain it — and not first when the general contractor cuts the final invoice.
Measured quantities against the quote
Socket T13 142 → 156 pcs
Cable TT 2'400 → 2'615 m
The partial invoice takes the position from the measured quantities, the interim payment is credited, the early-payment discount is on file. The retention gets a date, and the four months for the contractor's lien run from the recorded day of completion.
Partial invoice 3 · CHF 86'400.00
Interim payment credited CHF 60'000.00
Retention 5 % CHF 4'180.00
Contractor's lien · 23 days left
The AI proposes, you tick. There is no line on a quote that somebody has not looked at and confirmed — and the price on it is calculated from your article master, not invented by a model.
Under ZGB Art. 837 and 839, the contractor's lien can only be registered within four months of the works being completed. After that the security is gone, however well founded the claim may be. The software counts the deadline from the recorded date of completion and speaks up while registering still does some good.
What stays
In project work, too many parties depend on your existing routines for a wholesale change to make sense. We connect to what you have.
We take one of your current developments, look at the measured quantities and the retention, and tell you which deadlines are running on it. What comes out of that is yours.