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Free printable template

Free HVAC Invoice Template

A clear invoice for service calls, tune-ups, parts and refrigerant. Print a blank copy or edit the sample online.

Open the invoice maker

Free to print · No sign-up · A4 & Letter · Sample data only

Free sample
Northstar Climate Services
Heating, ventilation & air conditioning · Sample business
INVOICE
# INV-3184
Issue date
31 Oct 2026
Payment due
14 Nov 2026
From
Northstar Climate Services
4100 Cedar Park Blvd
Austin, TX 78727
(512) 555-0172
service@northstarclimate.example
Bill to
Morgan Reyes
7 Canyon Ridge Drive
Austin, TX 78732
DescriptionQtyRateAmount
Diagnostic visit
Inspect system and measure pressures
1$89.00$89.00
AC tune-up
Clean coils, check charge and airflow
1$149.00$149.00
Filter replacement
MERV 13, 20 × 25 in
2$18.00$36.00
Refrigerant top-up
R-410A, per pound
1$75.00$75.00
Subtotal$349.00
Sales tax (8.25%)$28.79
Total$377.79
Notes: Payment due within 14 days. Bank transfer or card accepted.
Warranty: 12 months on workmanship; equipment and parts covered by the manufacturer. Refrigerant handling is subject to local regulations.
Thank you for your business.Page 1 of 1
Fill it in online

Sample line items. Replace the business and client details with your own before sending.

The essentials

What a HVAC invoice should include.

HVAC invoices often include a diagnostic fee, a tune-up or repair, filters, refrigerant and labour. This template keeps those lines separate so homeowners and property managers can approve the work without guesswork.

  • Your business name, licence number where required, address and phone.
  • Invoice number, service date and payment due date.
  • Client name, service address and the equipment make and model.
  • Diagnostic fee, parts, refrigerant and labour, itemised.
  • Filter sizes, serial numbers or maintenance notes the client should keep.
  • Warranty terms and payment instructions.
  1. 1

    Start with the sample

    Open the free invoice maker and replace the sample business and client details.

  2. 2

    Make it yours

    Add the diagnostic, parts, refrigerant and labour lines from the service sheet.

  3. 3

    Send it

    Print or save a PDF, then log the next service in the full app.

From template to paid

A template is a start. The app finishes the job.

Print a blank sheet for free, or use InvoiceHarbor to fill, save, duplicate and convert documents without a subscription.

No account, no upload

Client details stay in your browser. There is no backend and no invoice data is sent anywhere.

Quotes become invoices

Create a quote, send it, then convert it to an invoice with one click when the job is approved.

One file, yours to keep

A personal source license is $24 one-time. Download it, open it offline, and edit the HTML if you want.

Own the full invoice app.

Unlimited documents, clients, quotes, PDF printing and JSON backups. No subscription, no account, no cloud.

$24 personal · $149 agency, unlimited client deployments

Questions

HVAC invoice FAQ.

Is this HVAC invoice template free?

Yes. The printable template is free to use. The full InvoiceHarbor app, which saves and manages invoices, is a one-time paid download.

What should an HVAC invoice include?

The equipment make and model, service address, diagnostic fee, parts, refrigerant, labour, tax, total and payment terms. Maintenance notes help the client plan the next service.

Can I list filters and refrigerant separately?

Yes. The sample shows separate lines for filters and refrigerant; adjust the quantities and rates to match the job.

Can I use it for commercial HVAC work?

Yes. Add the purchase order and site reference in the notes.

Does InvoiceHarbor work offline?

Yes. The full app is a single HTML file. Once you have it, it opens without an internet connection and stores data in your browser.

Is InvoiceHarbor accounting or tax software?

No. It creates invoice and quote documents. It does not file taxes, reconcile accounts or provide tax advice.