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LeadDuo Invoice

Free AI HVAC Invoice Generator

Describe the HVAC job — diagnostics, parts, labor, refrigerant, or emergency surcharges — and AI drafts a professional invoice you can edit, download, or email.

You can edit everything before downloading or sending.

What you'll get from this HVAC invoice generator

  • Describe an HVAC repair, diagnostic visit, maintenance call, install, or emergency service job in plain English.
  • AI drafts HVAC-specific invoice line items such as service call fee, labor, parts, refrigerant, duct work, trip charge, equipment notes, and after-hours surcharge.
  • Review labor, parts, taxes, warranty notes, payment terms, then download the PDF or email it to your customer.

How the HVAC Invoice Generator Works

  1. 1Select HVAC as the service type.
  2. 2Describe the job: diagnostic visit, repair, maintenance, install, refrigerant service, or emergency call.
  3. 3AI drafts HVAC-specific labor, parts, service fees, notes, and payment terms.
  4. 4Review model numbers, warranty notes, taxes, and due dates.
  5. 5Download the PDF or email it to your customer.

Example Invoice Line Items

  • Diagnostic service call
  • HVAC labor — hourly
  • Capacitor replacement
  • Thermostat installation
  • Refrigerant recharge (per lb)
  • Filter replacement
  • Ductwork repair
  • Furnace maintenance tune-up
  • AC system installation
  • Emergency after-hours surcharge

Example AI Prompt

“Create an invoice for an AC repair visit. Include diagnostic fee, 2 hours of labor, capacitor replacement, refrigerant top-off, trip charge, and due-on-completion payment terms.”

Frequently Asked Questions

What should an HVAC invoice include?
An HVAC invoice should itemize diagnostic/service call fees, labor hours at your hourly rate, parts and materials with cost and markup, refrigerant charges (by pound), equipment model and serial numbers for warranty tracking, and any emergency or after-hours surcharges. Separating labor from parts helps customers understand the breakdown and supports warranty claims.
How do I calculate labor vs parts on an HVAC invoice?
List labor as a separate line item with hours × hourly rate (typically $75–$150/hr). Parts should be listed individually with a standard markup of 25–50% over wholesale cost. Include the part number for major components. Travel/trip charges ($50–$100) are a separate line item. This transparency builds trust and reduces customer pushback.
Should HVAC invoices include equipment model numbers?
Yes, always include equipment make, model, and serial numbers on HVAC invoices. This supports warranty claims, helps customers with homeowner insurance documentation, creates a service history for the unit, and protects you if a customer disputes what was serviced. It also makes follow-up service calls more efficient.
What payment terms are standard for HVAC work?
Residential HVAC repair is typically due on completion. For larger installs ($3,000+), offer 50% deposit with balance on completion. Commercial HVAC contracts usually run Net 15 or Net 30. Emergency/after-hours calls should always be due on receipt with the surcharge clearly itemized.

About This Tool

LeadDuo HVAC Invoice Generator is a free invoicing tool built for HVAC contractors, service technicians, installers, maintenance companies, and commercial HVAC service providers. Choose from 4 professional templates including a Contractor layout, add your logo and brand colors, and download as PDF or email directly.

Features include HVAC-specific preset line items for diagnostics, parts, labor, refrigerant, and emergency surcharges. Track equipment model and serial numbers for warranty documentation.

Free tier includes 2 invoice downloads per month. Invoice Lite ($5/mo) adds 25 invoices and 50 email sends. Invoice Plus ($10/mo) adds 75 invoices, branding removal, and 100 email sends.

Automate This

Sending Invoices Every Week?

LeadDuo ServiceHub helps service businesses manage estimates, jobs, reminders, invoices, and follow-ups in one workflow.

  • Send online invoice links to customers
  • See invoice views in the activity timeline
  • Keep estimates, jobs, and invoices connected
  • Follow up faster after every completed job
See How It Works Start Free Trial

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