Free HVAC Invoice Generator

Invoice AC and furnace work in minutes — service calls, installs, and maintenance. Add your logo, itemize labor, parts, and refrigerant, and download a print-ready HVAC invoice. Free, no sign-up.

What to put on an HVAC invoice

HVAC jobs combine a diagnostic or service-call fee, labor, equipment, and consumables like refrigerant. Break each out on its own line so the homeowner sees what the visit covered, and note any parts-or-labor warranty. Common line items include:

How to make a contractor invoice for free

  1. Add your business details

    Enter your business name and (optionally) upload your logo, address, phone, and email so the invoice looks like yours.

  2. Enter who you're billing

    Add your client's name and contact details under Bill to.

  3. List the work and rates

    Add a line item for each part of the job with a description, quantity, and rate. Totals calculate automatically. Set a tax rate if you charge one.

  4. Download or print

    Preview updates live as you type. When it looks right, download a PDF or print it to send to your client.

Frequently asked questions

What should an HVAC invoice include?

Beyond your business and customer details, an HVAC invoice should spell out the diagnostic or service-call fee, labor, any equipment or parts (with model numbers where useful), refrigerant by the pound, and the total. Note any warranty on parts or labor in the Notes field.

How do I bill for refrigerant?

Refrigerant is usually billed by the pound on its own line item — set the quantity to the pounds added and the rate to your per-pound price. Keeping it separate from labor keeps your pricing transparent and is often required for record-keeping.

Can I add equipment model and serial numbers?

Yes — put them right in the line-item description (e.g. "Carrier 24ANB6 condenser, S/N …"). Accurate model and serial details make warranty claims and future service calls much easier.

Can I add my logo to the invoice?

Yes. Upload a logo and it appears at the top of the document. It's saved in this browser's local storage and used to build your invoice. No account needed.

How do I get a PDF?

Click Download PDF. Your browser opens its print dialog — choose "Save as PDF" as the destination to get a clean, print-ready file you can email or store.

Is this really free?

Yes. The generator is 100% free with no sign-up required. Fill it in, download a PDF, and print or email it. Nothing is uploaded to a server — everything happens in your browser.

Do I need to create an account?

No account is needed to make and download a document. If you later want to save your work, send documents, get paid online, or collect e-signatures, you can start a free Mikk trial — but it's never required to use this tool.

Where is my data stored?

In your own browser. Your business details, logo, and line items are saved in this browser's local storage, so the form is still filled in when you come back. There's no account to create, and we never sell your info.