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CheckMySupply.com
Same fitting. Same supplier. Different price every month.

We read every supply-house invoice and catch the price creep before you pay.

Forward last month's invoices (or snap photos at the counter). We'll scan every line and show you what we found and what it's costing you, free, in 24 hours. If we find nothing, you've lost ten minutes.

No demos. No sales calls. No contracts. No card required for the scan.

What price creep actually looks like

¾" copper 90° elbow (bag of 10)Mar $14.20 → May $16.10 → Jun $17.80+25%
½" PVC Sch 40, 10 ftMar $3.85 → Jun $4.60+19%
12/2 Romex, 250 ft rollApr $89.00 → Jun $104.50+17%

Nobody called to tell you. It just showed up on the invoice, and you paid it. That's the creep.

How it works

Keep buying exactly the way you buy. We do the checking.

1

Forward or snap

Email invoices to your private @checkmysupply.com address, connect QuickBooks, or photograph the paper ones in the truck. All three work from day one.

2

We check every line

Every unit price against what you paid last time. Every invoice against your quote. Quantities, math and duplicates get checked on every single invoice.

3

You get the receipt

With your subscription, a weekly "money found" report with proof for every finding, plus a polite, ready-to-send email to your supply-house rep. Most credit requests on recent invoices just get honored.

What a scan finds

Real findings from real shops (details anonymized). Every one comes with the paper trail.

Quoted $1,240, invoiced $1,395 for the same materials listQuote #Q-2241 vs invoice #388102, water heater job
$155
Same invoice paid twice, three weeks apartInvoice #52110 re-sent with a new date after payment
$612
Unit price up 25% in 90 days, no notice¾" copper elbows · 14 purchases tracked
$74/mo
Charged for 12, delivered 10Qty on invoice ≠ qty on the packing slip you photographed
$96
Found in one month of invoicesTypical first scan for a shop buying $40K+/mo in materials
$410

Pricing. Right here, like it should be.

The tools that do this for big contractors make you "book a demo" to hear a price. We think you can read.

Watchdog

$99/mo
1 supplier · about half an hour of billable time
  • Every invoice checked, every line
  • Duplicate & error detection
  • Weekly money-found report
  • Ready-to-send credit request emails
Start now - $99/moor start with a free scan
Most popular

Shop

$249/mo
All suppliers · one service call to guard all your materials
  • Everything in Watchdog
  • Price-creep tracking on every item you buy
  • Quote-vs-invoice matching
  • QuickBooks sync
  • Price-move alerts for your top items
Start now - $249/moor start with a free scan

Multi-Location

$499/mo
Multiple locations · PO matching · exports
  • Everything in Shop
  • Location-by-location reporting
  • PO matching
  • Full data export, anytime
Start now - $499/moor start with a free scan
No setup fees.No contracts. Cancel anytime, keep your reports and your price history.Annual = 2 months free (optional).Bookkeepers: free multi-client dashboard, ask us.

The Found-Money Guarantee

If we don't find at least what you've paid us in documented errors and price creep in your first 60 days, we refund every dollar. Your data says we won't have to.

Why we don't do discounts

A discount says "we're not sure it's worth it." A guarantee says "we are." No coupon codes, ever. Just the free scan, the guarantee, and the running total of what we've found for you.

Software that respects a shop owner's evening

No demosNo "book a call"No contractsNo per-user pricingNo hostage data

You decide at 9pm at the kitchen table, not on a Tuesday Zoom with a sales rep. The price is on this page, the first scan is free, and if you leave, your price history leaves with you.

Founding 100: $99/mo locked for life

The first 100 shops lock Watchdog pricing forever (list prices will rise; yours won't), get their first credit request handled start-to-finish by our team, and get the Founding Member kit (yes, there's a hat).

Lock your founding rate

Questions shop owners actually ask

Will this tick off my supply house?

You send every credit request yourself, from your own email, politely worded by us. Counter guys fix recent errors all the time. It's the 60-day-old ones that get "sorry, already posted." Most reps respect a customer who checks. And your price history gives you something you've never had at negotiation time: receipts.

My invoices are paper, in the truck.

Normal. Photograph them at the counter or at the end of the day. Crumpled is fine. Or have your supply house email invoices to your private CheckMySupply address and never think about it again.

Is my pricing data private?

Yes. Your prices are yours. Anything we publish (like our Material Price Index) uses supplier catalog data and anonymized aggregates, never your identifiable numbers. You can opt out of aggregates entirely and export everything anytime.

What if you find nothing?

Then you have proof your supplier is playing it straight, which is worth knowing. About half of first scans find $200+. And the 60-day guarantee means a quiet start costs you nothing.

I have a bookkeeper. Isn't this their job?

Bookkeepers reconcile totals; almost nobody re-checks unit prices line by line against what you paid in March. Many of our best fans are bookkeepers. We give them a free dashboard for all their client shops. Send them our way.

Who's behind this?

A small team that reads supply-house invoices all day. Every question gets answered by a human, usually the founder. There's a real inbox behind that button.

What happens when I subscribe?

Checkout takes a minute through Stripe. You keep forwarding invoices exactly as before, and your first full report, with every finding documented and credit-request emails drafted, lands within 48 hours. After that it runs weekly.

How do billing and cancellation work?

Monthly, through Stripe. Cancel anytime; it takes effect at the end of the billing period and you keep your reports and price history. And if we find less than you've paid us in your first 60 days, we refund every dollar.

Get your free scan

Enter your email and we'll send your private forwarding address. Forward a few recent supply-house invoices, even 3-5 to start (photos welcome). Your scan summary (what we found, what it's costing you) comes back within 24 hours.

No card for the scan. The full line-by-line report and ready-to-send credit requests come with your subscription.