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HVAC Technician Guide

How to Automate Expense & Receipt Tracking as a HVAC Technician

Mixing warranty parts like a Carrier compressor with billable items like TXV valves on one supply house receipt makes invoicing a mess. Trying to separate these costs by hand while sitting in your van after a long day leads to billing mistakes and lost profit.

The Current Reality

The Manual Way

Technicians shove paper receipts into a binder, then spend evenings highlighting warranty vs. billable items in Excel by hand.

45 minutes per job
  1. Snap a photo of the supply house receipt with your phone.
  2. Type line items into a Google Sheet at night.
  3. Check equipment model numbers against warranty databases.
  4. Figure out the split between customer-billable and manufacturer-reimbursable costs.
  5. Re-build the invoice in your accounting software using the separated totals.

With Christine AI

The Christine Way

Snap a photo of the receipt in iMessage. Christine reads the parts, checks your service notes for warranty status, and updates your ledger right away.

You

Text Christine a photo of the receipt with the note: 'Delgado job, compressor under warranty, TXV is billable.'

Christine

Christine scans the receipt, spots the $290 TXV valve and $85 refrigerant as billable, and flags the compressor cost for warranty claims.

You

Ask Christine to 'Update the Delgado invoice draft with these costs.'

Christine

Christine adds the $375 in billable parts to the customer quote and makes a separate reimbursement request for the warranty part.

Time Saved Per Week

6 hours per week

Back in your pocket every single week — just for this one task.

Real Example

See it in iMessage

Just text Christine like you would a friend.

9:41

Christine

AI Secretary

Here's the receipt from Ferguson Supply for the Delgado job. Compressor is under warranty, but the TXV and R-410A are on the customer.
9:41 AM
Got it. I see the Carrier compressor ($850), TXV valve ($290), and 2 lbs R-410A ($85). I've logged $375 as billable to the Delgados and set aside the $850 for the warranty claim.
9:41 AM
Perfect. Can you update their quote email to reflect the $375 parts charge plus 2 hours labor?
9:42 AM
Done. The draft email to Mr. Delgado now shows: Parts ($375) + Labor ($160) = $535 total. The compressor replacement is listed at $0 cost due to warranty coverage. Ready to send?
9:42 AM
Get Started Today

Stop doing this manually.
Let Christine handle it.

Christine is your AI secretary, available 24/7 via iMessage. One flat rate — no per-action fees, no learning curve.

Try Christine for $49/mo

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