Who it is for
Trade contractors who run profitable jobs and stay cash-poor at the office.
Drumtap is for trade subs whose general contractor accepts, modifies, or rejects invoices in a portal — in ways the QuickBooks ledger never sees back. You close the job in the black, then chase the gap between the signed PO, the GC portal pay app, and your books for weeks. Recovery-fee terms are not active during the controlled beta. Any future case fee requires a separate written offer and immutable acceptance record.
The scenarios below are illustrative — they describe the kinds of trade contractors Drumtap is built for, not named real customers or logos.
Drywall · 3 crews
A three-crew drywall sub hangs two floors ahead of the PO.
The PO is accepted at one number. A field directive moves a wall, the crew hangs two extra boards per room, and the GC portal line item comes back short on the next pay app. QuickBooks still shows the original invoiced amount — the gap never makes it back as a ledger entry.
Drumtap reads the GC portal Status and Notes on every upload, labels the short line a disputed discrepancy, and drafts the dispute package — signed PO, field directive, daily logs — so you send the refile with the evidence the GC needs to pay the rest.
Electrical · 1 truck
A one-truck electrical sub bills T&M that the GC portal rounds down.
You run time-and-materials on a remodel. The GC portal accepts the hours you submitted but rounds the labor rate down to the original bid number and drops the material markup line. The invoice you sent and the pay app the GC approved stop matching in QuickBooks.
Drumtap flags the labor-rate and markup-line discrepancies, ties each to the matching T&M sheet and material receipt, and drafts the email you send to the AP clerk — you send it, Drumtap never sends on your behalf.
Mechanical · 6 workers
A six-worker mechanical sub carries retainage across three pay apps.
Retainage sits on three pay apps in a row. The GC portal shows each pay app "approved" but the retained amount never releases on the schedule the contract calls for — and your AR aging keeps growing while the books say the invoice is "approved".
Drumtap tracks the retainage release window against the contract terms, labels the overdue retainage a discrepancy on the next upload, and drafts the release request with the contract clause and the pay-app history attached.
Private beta waitlist
Join the Drumtap private beta
Drumtap is preparing a private beta for trade contractors who want a clearer path from GC portal discrepancies to the next documented action. Join the waitlist for timing and next steps before access opens.