Free template
Free HVAC Invoice Template
HVAC work mixes diagnostic fees, parts, labor, and maintenance plans, and your invoice should make all of it crystal clear. This free HVAC invoice template separates the service call, parts, and labor, with room for a maintenance agreement and clear payment terms. Fill it in, then download as Word or PDF or copy into Google Docs.
Click any field to fill it in. Line-item totals update automatically. Draw your signature at the bottom, then print, download, or copy.
| Invoice # | |
| Date | |
| Due date |
| Description | Qty | Rate | Amount | |
|---|---|---|---|---|
| $0.00 | ||||
| $0.00 | ||||
| $0.00 | ||||
| $0.00 |
| Subtotal | $0.00 |
| Tax (%) | $0.00 |
| Total due | $0.00 |
How to use this invoice template
- 1
Add your company details, the customer, the service address, and an invoice number.
- 2
List the diagnostic or service call, labor, and each part used so the customer sees the full breakdown.
- 3
Add a maintenance agreement line when you sell one. It is the recurring revenue that keeps techs busy in shoulder season.
- 4
Set your payment terms and a due date, then collect on site. Same-day invoicing gets you paid before you leave.
What a invoice should include
- Your company name, contact info, and license number
- The customer's name and the service address
- An invoice number and the service date
- The diagnostic or service call fee
- Itemized parts and labor
- Any maintenance agreement sold or renewed
- Subtotal, tax, total due, and payment terms
Common invoice mistakes to avoid
- Not charging a diagnostic or trip fee
- Bundling parts and labor into one vague line
- Skipping the maintenance agreement upsell
- Waiting until the office to invoice instead of billing on site
- No due date or online-pay option, so payment drags
Stop filling in templates
Between service calls and installs, HVAC invoicing should not eat your evenings. Smarfle builds the invoice from the work order with parts and labor, collects card and ACH on site, sells and renews maintenance agreements, and follows up on overdue balances automatically.
Frequently asked questions
What should an HVAC invoice include?+
Your company and license info, the customer and service address, an invoice number, the date and due date, the diagnostic or service call, itemized parts and labor, any maintenance agreement, the total due, and payment terms. This template includes all of it.
Should I charge a diagnostic or service call fee?+
Yes. Most HVAC contractors charge a $75 to $150 diagnostic or trip fee, then bill labor and parts on top. This template has a dedicated line for it.
How do I bill an HVAC maintenance agreement?+
Sell it as an annual plan ($150 to $300) and either invoice once or bill monthly. A card on file that auto-renews each year is the cleanest way to keep the recurring revenue.
Can I download this HVAC invoice template in Word or Google Docs?+
Yes. Download Word for an editable file, Print or Save as PDF to email, or Copy to paste into Google Docs or Word. Free, no signup.
Is there a faster way to invoice HVAC jobs?+
Yes. Smarfle builds the invoice from the work order, collects payment on site, manages maintenance agreements, and chases overdue balances automatically.
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