Inventory Management for Small HVAC Businesses That Actually Works
Every small HVAC and refrigeration shop knows the two failures: you drive to a job and the contactor you needed is gone, or you stockpile parts that sit on the van for a year tying up cash. Both come from the same root problem — your stock count, your purchases, and your jobs live in three separate places (or in your head). R-Pro fixes that by linking the field app and the office ERP so every part used on site and every part bought from a supplier updates the same live inventory, automatically.
On the van: parts get used the moment the job is logged
- When a tech closes out a service job in the FIELD APP, the parts fitted to that unit are recorded against the customer's job — no separate stock sheet to remember later.
- Scan the equipment nameplate to pull the model and refrigerant, and scan the supplier receipt to auto-fill what was bought — no manual typing of part numbers in the cab of a truck.
- Per-customer service history shows what was installed where, so on the next call you already know the capacitor, TXV, or compressor model that's in that machine.
- The whole field app works fully offline — record parts used in a basement plant room or a rooftop with no signal, and it syncs when you're back in range.
- Issue a receipt to the customer on site the same moment the parts and labor are captured, so nothing is reconstructed from memory at the end of the week.
In the office: live stock levels and true parts cost
- The OFFICE ERP holds your inventory as a real list with on-hand quantities, so you can see at a glance how many contactors, filter driers, or fan motors you actually have before you promise a customer a same-day fix.
- Purchase orders and supplier records feed straight into stock: when goods are received, on-hand counts go up and the cost is recorded against the right supplier.
- Because purchases carry their real cost, your accounting separates sales, purchases, expenses, and net profit — you see what parts actually cost you, not a guess.
- Set low-stock thresholds on the parts you can't be caught without, so you reorder the common consumables before a job stops dead.
- Run reports to spot slow-moving stock that's tying up cash and the fast movers worth keeping deep on the shelf.
Why it works: one subscription, no double entry
- Field work flows into the office books automatically — parts used on a job and parts bought on a PO both move the same inventory number, so stock is never out of date.
- No double entry: the tech logs it once on site, and the office sees the stock change, the parts cost, and the customer charge without re-keying anything.
- Because purchases (stock in) and jobs (stock out) hit the same ledger, your parts cost stays accurate and your net profit per job reflects what the materials really cost.
- FIELD APP and OFFICE ERP are two equal tools under one subscription, in 10 languages — the diagnosis-and-receipt side and the inventory-and-accounting side are designed to run as one business.
- Set your own country's tax name and rate on invoices and tax invoices, so the paperwork around your stock and sales matches your local rules out of the box.
Run the field and the office on one platform
R-Pro pairs a full FIELD APP — AI fault diagnosis on 600+ real HVAC and refrigeration cases, nameplate and receipt scanning, voice memos, per-customer history, on-site receipts, fully offline — with a full OFFICE ERP for quotes, invoices and tax invoices, accounting, inventory, suppliers, purchase orders, and reports. Two equal tools, one subscription, 10 languages, with field work flowing into your books automatically. Track parts the way your business actually runs.
Get R-Pro →FAQ
How does R-Pro know a part is used up?
When a technician records the parts fitted on a service job in the field app, those quantities are deducted from your inventory in the office ERP. You don't keep a separate stock sheet — closing the job is what moves the stock. Parts received against a purchase order add stock back, so on-hand counts stay live.
Can I track what each part actually costs me?
Yes. Purchases are recorded with their real cost against the supplier, and the accounting module separates sales, purchases, expenses, and net profit. Because the cost rides along with the part, your job profitability reflects true material cost rather than an estimate.
Does inventory work if I have no internet on site?
The field app is fully offline. Parts used, nameplate scans, receipts, and voice memos are captured on the van without signal and sync to the office ERP when you reconnect — so inventory catches up automatically, with no lost records.
Do I need separate software for the field and the office?
No. The field app and the office ERP are two equal tools in one subscription. Diagnosis, scanning, and on-site receipts live in the field app; inventory, purchase orders, suppliers, invoices, and accounting live in the ERP — and they share the same data, so field work updates the books with no double entry.