Free template
HVAC estimate template
The structure of an HVAC estimate that gets approved — and protects you when scope changes. Copy this or build it online in under 5 minutes.
Sample HVAC estimate
| Item | Qty | Amount |
|---|---|---|
| Diagnostic / service call | 1 | $99 |
| Carrier 24ACC636A003 — 3-ton 16 SEER AC unit | 1 | $2,840 |
| Coil — Carrier CNPVP3617ALA | 1 | $680 |
| Installation labor — disconnect, line-set, electrical, start-up | 1 | $1,200 |
| R-410A refrigerant (estimated 5 lb) | 5 | $375 |
| Thermostat — Honeywell RTH7560E (supplied & installed) | 1 | $195 |
| Permit and inspection | 1 | $185 |
| Subtotal | $5,574 | |
| 30% deposit due to schedule | $1,672 |
Anatomy of an HVAC estimate
1. Diagnostic / service call
List a flat diagnostic fee as the first line item even if it's waived on job acceptance. It establishes your time has value and gives you cover if the customer just wants a free opinion.
2. Equipment — model, SEER, and BTU
Specify the exact equipment: make, model, SEER rating, and capacity. Vague estimates like 'new AC unit' invite disputes. If the customer shops around, they'll compare your spec sheet with competitors'.
3. Labor — broken into phases
Separate the tear-out/disconnect, installation, start-up/commissioning, and electrical work. Customers understand why a full system replacement takes two technicians all day when they can see the phases.
4. Refrigerant and consumables
List refrigerant per pound at market rate, and include a note that actual quantity may vary. This protects you from margin erosion on older systems that need more than expected.
5. Permit and inspection
Pass through at actual cost, never fold into labor. If the permit is delayed or rejected, you want a clear paper trail that it was the municipality's issue, not yours.
6. Deposit line
Show the deposit as a separate line under the total — typically 30–50% on equipment-heavy jobs. This makes it feel like part of the process, not a financial demand.
7. Warranty terms
State manufacturer warranty (equipment) and your labor warranty separately. One year on labor is standard; write it down so it's not a verbal commitment you have to honor forever.
What makes an HVAC estimate get approved?
Frequently asked questions
Should I include equipment markup in the line item price?
Yes — show the customer the installed price, not your cost. Breaking out a 'markup' line confuses customers and invites negotiation on your margin.
How do I handle refrigerant quantity uncertainty?
List an estimated quantity with a note that actual usage will be reconciled at job completion. This is standard in the industry and customers expect it.
What if I need to add duct work after opening the system?
Send a change order with the additional scope before doing the work. Getting approval on paper protects you from disputes at invoice time.
Is a typed signature legally binding for an HVAC estimate?
In most U.S. jurisdictions, yes. A typed signature with IP address and timestamp is sufficient for residential work. For commercial jobs, check with a local attorney.
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