Plumbing Contractors
The price you bid the pipe at isn't the price on the invoice.
Copper, PEX, and cast iron get quoted at bid and billed months later at whatever the counter says that morning. Fixtures swap mid-job. Counter tickets pile up across supply-house accounts nobody squares up. CheckIT verifies every line against the quote you actually got — minutes from upload to flagged.
CheckIT Invoice is a cost intelligence tool that checks plumbing contractors' supply-house invoices against the quotes they were bid from and flags billing errors, overcharges, and double-billing before you pay. Send one job's quote and invoices and get back a line-by-line report of every difference, in dollars. It works alongside QuickBooks, Sage, or spreadsheets — no integration, no new software for your crew.
Where the money goes
Four ways profit leaves a plumbing job.
Commodity price drift on pipe
Copper, PEX, and cast iron quoted at bid rarely match the invoice price months later. Supplier creep lands line by line, and nobody has time to check a 60-line supply-house invoice against the quote.
Rough-in vs. trim purchasing
Two different buy waves on the same job — pipe and fittings early, fixtures and trim late. Invoices that land in the wrong phase distort billing against work-in-place.
Supply-house account sprawl
Techs charge to Ferguson and local supply-house accounts across a dozen jobs. Month-end brings a stack of counter tickets and mystery charges nobody can tie to a job.
Fixture swaps and substitutions
The spec fixture is backordered, the sub-in costs more, and the difference quietly rides through on the invoice unless someone catches it against the original quote.
How CheckIT fits the plumbing workflow
Tools for how plumbing actually buys.
CheckIT Invoice — the live tool — sits between when a supply-house invoice arrives and when you pay it. Drop the invoice and the quote in. The engine flags every line that doesn't match. Every stage answers one of the three money questions on the job — what will it cost, what should you pay, and what did you actually pay versus what you agreed.
Pre-Con
CheckIT Estimate
DESIGN PARTNERS FORMING — 2027estimate against your own historical cost reality.
Procurement
CheckIT RFQ
PILOT — BY INVITATIONsupplier and sub quotes leveled at line-item scope. An invite-only pilot — request access; 90 days free once you're in.
Execution
CheckIT Invoice
LIVE TODAYevery material and sub invoice verified against the quote before payment.
Scope
CheckIT Change Order
NEXT — H2 2027change orders validated against the approved scope and markup.
A plumber's take — moved from SubBase to CheckIT
“I'm Eric Culbert, owner of Culbert Plumbing here in San Luis Obispo. We've been serving the Central Coast since 1979, and between service work and new construction, a lot of invoices cross our desk. Before CheckIT, verifying invoices against quotes meant hours of line-by-line checking — and errors still slipped through. Now CheckIT does it in minutes. We're getting eight to sixteen hours back every month, and it's caught thousands of dollars in billing errors we would have paid without blinking. If you're a contractor who cares about your margins, turn this thing on. It pays for itself.”
Plumbing-specific features
- Unit-price verification across pipe, fittings, fixtures, and equipment
- Invoice-vs-quote matching that catches supplier price creep
- Counter-ticket and phase-aware job coding
- Fixture substitution and allowance price-difference flagging
- Cumulative job tracking — total billed vs. quoted
- One-click dispute emails with line-item evidence
Questions from the shop
No. CheckIT runs on the documents you already have — the quote and the invoices. Nobody in the field touches it, nothing about how you buy changes, and there's no new software for your crew to learn. If you keep your books in QuickBooks Online, the connection is live: verified invoices push in as bills with per-line cost codes, so nothing gets re-keyed either.
The free audit costs nothing — no credit card, no obligation. Paid plans are published on our pricing page and start at $455 per month per location, with unlimited seats and no per-user fees.
One job's quote and the invoices against it. Drag and drop the PDFs — counter tickets and all. That's it.
Yes. Your documents are encrypted in transit and at rest, stay confidential, are used only for your assessment, and are deleted on request. We work with contractors' numbers for a living — discretion is the job.
Procurement software manages how you buy. CheckIT verifies you were billed what you agreed to. Different jobs. Plenty of shops run both — CheckIT doesn't ask you to rip anything out.
Your next supply-house invoice has a line that drifted. Find it first.
Drop a recent invoice and the quote it should match. We'll show you every difference in under 5 minutes. Free.