Solutions · Subcontractors
Built off their documents. Paid off your proof.
The subcontractor builds off what the head contractor sends and gets paid off what they can prove. Alloovium keeps your copy of every package, a stamped trail of every send and signature, and answers out of the contract you actually signed.
Head Contract — GC21 · Exchange
The revision performs itself as a redline
Comparing rev C → rev D…Rev C → rev D · 3 clauses changedOn the receiving end
The paper trail, finally yours too

Read the amendment like a mark-up. When the amended subcontract comes back, a paragraph-level diff shows every change, so you price the clause they moved, not the one you remember.

The claim you sent is on the record. Sends, reads and signatures sit on one stamped timeline, so "we never got it" stops being an argument and starts being a lookup.

Know what you signed up to. Ask in plain language and the answer comes back cited to the clause in your own subcontract, before you do the work for free.
Head Contract — GC21 · Exchange
The revision performs itself as a redline
Comparing rev C → rev D…Rev C → rev D · 3 clauses changedBoth directions
From received package to paid claim
Everything the head contractor sends, and everything you send back, lands on one record you hold too.
A package arrives as your own saved copy with the send note attached. Preview it in the browser and file it to the job. It is yours regardless of what happens to the email thread.
Head Contract — GC21 · Exchange
The revision performs itself as a redline
Comparing rev C → rev D…Rev C → rev D · 3 clauses changedCl 14.2 — Extension of time, notice period…written notice within 21 days of the delay first arising.…written notice within 7 days of the delay first arising.Cl 42.7 — Liquidated damages…at the rate of $8,500 per day or part thereof.…at the rate of $12,000 per day or part thereof.Cl 6.1 — Scope of works · unchangedJTPNMW3 of 4 subcontractors acknowledgedAudit trail on fileRetention, notice periods, dayworks caps, set-off. Ask in plain language and the answer cites the clause it came from, so you quote the contract back with a number attached.
Ask · Meridian Tower
Ask in plain language, get the cited answer
What cover does the spec require for the ground slab reinforcement?
The spec requires 40mm cover to the top face and 50mm cast against ground [1]. Drawing S-201 rev D notes the lift pit as the exception at 65mm [2].
1 Spec 03 30 00 — p.442 S-201 rev DDayworks, diaries and site records captured on the day they happen, so the claim is built from records the builder can check, not reconstructed at month end.
Site diary · Tuesday 24 June
The knock-off call writes the diary.
07:00NE slab poured and passed — 46m³, pump on site 6:15am.Logged13:10Storm from 1pm — two crews stood down, crane on hold.Noted15:40SW trench: rock at 2.0m — not in Geotech BH-04 log.NotedLatent · BH-0416:30Reo for L5 received, stacked at gate 3 laydown.LoggedFiled 5:04pm — a 1:42 call, no typing.
Variation drafted from the 15:40 entrySend the claim through Exchange and hold the proof of when it went and when it was opened. If the response window lapses, the chronology is already made.
Claims register · GC21
Watched against the notice periods
VAR-014Rock excavation, SW trench$104,8003 days left3 days leftEOT-007Wet weather, June+6 days3 days leftDraftedVAR-012L2 design change$61,2003 days leftSubmittedVAR-009Services clash, ceiling grid L1$18,4503 days leftSubmittedEOT-005Latent conditions, basement+4 days3 days leftApprovedVAR-014 notice due in 3 days under GC21 cl 14.2 — the draft is already in your review queue.
Watched to the time bar — nothing lapses quietly
One platform behind it
Every capability reads the same documents
Built for the rest of the team too
- Project ManagersRun the project and the month-end report from one place.
- Site ManagersCapture what changed on site before it gets lost.
- Safety & HSEQCatch non-conformances before they surface in an audit.
- Commercial ManagersEvery entitlement claimed, every notice in before the bar.
- ExecutivesSee margin and schedule risk across every project.
Get started
The document intelligence platform your team needs.
Put every drawing, spec, contract and RFI to work — and let the monthly grind run itself.






