HVAC Invoice Template — Free Download (2026)

Your business name, HVAC license, and EPA 608 certification

Your business name, phone, email, state HVAC contractor license number, and EPA Section 608 certification number (required for handling refrigerants). Property managers, commercial clients, and insurance adjusters often need your license number to verify credentials before paying. Including it on every invoice eliminates follow-up requests and positions you as a professional operator vs. an unlicensed handyman.

Client name and service address

Client's full name and the service address (especially important if the billing address differs, which is common with rental properties and commercial buildings managed by a third party). For property management companies, also note the unit number or building name.

Diagnostic / service call fee

The visit fee for coming out, diagnosing the issue, and providing a quote is a legitimate and billable service — even if the client declines further work. Invoice it separately: 'Diagnostic service call fee (waived if repair work performed): $95.' This clarifies the fee structure upfront and prevents 'I thought the diagnosis was free' disputes. Many HVAC technicians waive the diagnostic fee when the repair is approved — if you do this, show it as a waiver on the invoice.

Labor on separate lines with hours and rate

'Labor — refrigerant leak diagnosis and repair: 2.5 hrs @ $110/hr: $275' or flat-rate labor: 'A/C tune-up and inspection (flat rate): $150.' For multi-tech jobs: 'Lead tech — 3 hrs @ $125/hr: $375. Helper — 3 hrs @ $65/hr: $195.' Separate labor lines make it clear what you're billing for and allow you to show different rates for different skill levels.

Parts with model numbers and quantities

Every part on a separate line with the part name, manufacturer part number, quantity, and unit price: 'Capacitor — Genteq 40+5 MFD 370V (part #97F9002), qty 1: $68.' 'Contactor — Square D 40A 24V (part #8910DP13V14), qty 1: $95.' 'Refrigerant R-410A — 5 lbs @ $32/lb: $160.' Part numbers matter — they allow clients to verify the part and protect you from 'I think you installed the wrong part' claims.

Equipment for replacements

For system replacements: 'Carrier 3-ton central A/C unit, model 24ACC348A003 (SEER 16): $3,200. Furnace — Goodman GMVC960804CX, 80,000 BTU (96% AFUE): $2,100.' Include model numbers, capacity, and efficiency ratings. Homeowners will reference this for warranty registration, insurance documentation, and future service calls. A clearly documented equipment installation makes your invoice a permanent record they'll keep.

Refrigerant type and quantity

EPA 608 regulations require documentation of refrigerant type and amount used. 'Refrigerant: R-410A — 3 lbs added (system charged to 410 PSI, 68°F ambient).' This isn't just best practice — it's a regulatory compliance item. Commercial clients especially need refrigerant documentation for their EPA-required leak rate tracking on equipment over 50 lbs of refrigerant.

Warranty on parts and labor

Note warranties on the invoice: 'Parts warranty: 1 year manufacturer warranty on all parts installed. Labor warranty: 90 days on workmanship.' For equipment installations: 'Equipment warranty: 10-year parts, 1-year labor (Carrier factory warranty, registration required).' Homeowners who see a warranty note on the invoice feel confident in the work. It also sets clear expectations so you're not fielding warranty calls 2 years later on unrelated issues.