What to include on a HVAC invoice
Record model and serial numbers
For any installed equipment, note the brand, model and serial. Manufacturers often require registration within a set window to activate the extended warranty.
Bill refrigerant by the pound
Refrigerant prices fluctuate, and customers are wary of vague 'recharge' charges. Listing the type and pounds added is clearer and documents a possible leak.
Include efficiency ratings for rebates
Utility and tax incentive programs may ask for SEER2, HSPF2 or AFUE ratings. Putting them on the invoice saves the homeowner a call back to your office.
Note your EPA certification if relevant
Technicians handling refrigerant need EPA Section 608 certification. Some commercial clients like to see the tech's certification noted on the service record.
Example HVAC line items
These sample entries show how to describe HVAC work clearly. Rates are illustrative only; use your own pricing.
| Description | Qty | Rate | Amount |
|---|---|---|---|
| Diagnostic fee: AC not cooling | 1 | $99.00 | $99.00 |
| Dual run capacitor 45/5 MFD | 1 | $185.00 | $185.00 |
| R-410A refrigerant (pounds) | 3 | $85.00 | $255.00 |
| HVAC technician labor (hours) | 1.5 | $120.00 | $180.00 |
| Annual maintenance plan, two visits | 1 | $189.00 | $189.00 |
| Subtotal | $908.00 | ||
Payment terms for HVAC invoices
Our suggestion: Due on completion for service calls; 50% deposit on equipment replacements.
Sample terms you can paste into the invoice: “Payment due at time of service. Repair parts warranted 90 days; manufacturer equipment warranties apply as registered. A 1.5% monthly late fee applies after 30 days.”
Not sure what Net 15 or 2/10 Net 30 mean? Payment terms explained.
HVAC invoice FAQ
How much should an HVAC diagnostic fee be on an invoice?
It varies widely by region and company, often somewhere around $75-$150 for residential calls. Many companies apply the fee toward the repair if the customer approves it. Show it as a separate line and note whether it was credited.
Should HVAC invoices list refrigerant separately?
Yes, listing the refrigerant type and quantity is good practice. It explains a cost customers often question and creates a service record that can reveal a slow leak over time.
Can I invoice for a maintenance agreement upfront?
Many HVAC businesses bill maintenance plans annually upfront or monthly by card on file. Describe what the plan includes, such as visit count and discounts, so the customer knows what they bought. Check whether your state treats service contracts as taxable.