Invoice Generator

1. Enter your company details. Fill in your company name, phone, email, and contractor license number. These appear in the invoice header and build trust with customers.

2. Add customer and system info. Enter the customer's name, address, and phone. Then log the equipment type, make, model, and serial number so every invoice ties back to the specific unit you serviced.

3. Build your line items. Add each part and labor charge individually, or use the quick-add buttons for common HVAC items. Set quantities and unit prices, and the totals calculate automatically.

4. Set tax and payment terms. Enter your local tax rate and choose payment terms. Add warranty language or job notes in the notes field.

5. Generate the PDF. Click "Generate PDF" to open a clean, print-ready invoice in a new window. Use your browser's print function to save it as a PDF or send it directly to a printer.

A professional HVAC invoice goes beyond a basic receipt. It documents the entire service interaction and protects both you and the customer. At the top, you need your company name, license number, and contact information. Customers want to know who they paid and how to reach you if something goes wrong.

The system section is what separates an HVAC invoice from a generic template. Logging the equipment type, make, model, and serial number creates a service history for that unit. When the customer calls back in two years, you can pull the serial number and know exactly what was done previously.

Itemized line items with clear descriptions prevent disputes. Instead of writing "AC repair - $500," break it out: diagnostic fee, capacitor replacement, labor for install. Customers respect transparency, and it makes warranty claims simpler if a specific part fails.

Warranty terms on the invoice are legally important. Spell out what is covered, for how long, and any conditions. Most HVAC pros offer 10-year manufacturer parts warranty, 1-year labor warranty, and a 30-day workmanship guarantee. Having it on the invoice means there is no ambiguity later.

On-site service calls. You finish a repair, pull up this tool on your phone or tablet, fill in what you replaced and the prices, and hand the customer a professional invoice before you leave. No more scribbling on carbon copies or promising to email something later.

Small shops without software. If you are a one-truck operation and do not want to pay for ServiceTitan or Housecall Pro, this generator gives you a professional-looking invoice at no cost. It covers the HVAC-specific fields that generic invoice templates miss.

Backup when your system is down. Software crashes happen. Internet goes out. When your dispatch or invoicing platform is unavailable, this tool works offline in your browser. Generate a clean invoice, save the PDF, and enter it into your system later when things are back online.