How to write an HVAC invoice

What goes on an HVAC invoice

Six things, in the order they belong on the page. The invoice generator opens an HVAC document with the lines already in place, so most of this is checking rather than typing.

1. Separate the service visit from any repair. A scheduled service and a fault found during it are two things. One line for both hides what was actually done.
2. Show labor hours with the count. Diagnosis, repair and commissioning time, counted on the line.
3. Log refrigerant added by weight. Record the amount. It is a regulatory habit as much as a billing one, and it belongs on the customer document.
4. Price filters and parts separately. Consumables move on their own schedule and should not be inside your labor rate.
5. Reference the unit and location. Which unit, which floor, which site. Multi-unit customers cannot approve anything without it.
6. State the maintenance contract position. Whether this visit was included in a contract, and what falls outside it.

The lines an HVAC invoice usually carries

The generator opens with these lines when you pick HVAC technician. The figures are placeholders to type over, not a going rate.

Add, rename, reorder or delete any line, and set tax per line where it applies. Priced as they open, that comes to $510 before tax.

How to write an HVAC invoice, step by step

1. Identify the unit. Open the HVAC invoice and enter the make, model and location of the system, such as rooftop unit 2 or the upstairs air handler. On a site with several units it is the only way to match the invoice.
2. Bill the service visit on its own. The service and clean is one line. Anything found and fixed during it is a repair, on its own line.
3. Log refrigerant by weight. Write the refrigerant type and the weight added after a leak check. It is the record of what went into the system and the proof the customer received it.
4. Add filters and labor with counts. Two filters at a price each and the repair hours from your job sheet.
5. State the contract position, then send. Say whether the visit was covered by a maintenance contract and what was chargeable on top. Set 30 days for commercial accounts.

HVAC invoice example, filled in

A service visit to a cooling unit in a dental practice, with filters changed, refrigerant topped up and two hours of repair work. The unit and its location are named at the top, and the refrigerant weight is recorded in the note.

Subtotal $510, tax $51, total $561. The refrigerant line at $120 is backed by the weight in the note, which is what makes it a record rather than a charge the customer has to trust. Service and repair are on separate lines, so a contract customer can see what their contract covered.

Maintenance contracts, and the visit that was supposedly included

A maintenance agreement is the best revenue in HVAC and the easiest place to lose money, because customers reasonably assume that anything happening during a covered visit is covered.

The invoice is where that gets settled. Show the contract visit as its own line, at zero or at the contract rate, then show any repair as a separate chargeable line. The customer sees exactly what the contract paid for and what it did not.

Define the contract in countable terms on the invoice: number of visits, filters included, response time. A contract described only as a price is renegotiated on price every year.

Refrigerant, and why the weight goes on the document

Adding refrigerant without recording it is a habit that causes problems in two directions: regulatory record-keeping, and a customer who does not understand why a top-up costs what it does.

Put the weight and the type on the invoice line. It turns an unexplained charge into a measured one, and it gives both of you a record that a system needing repeated top-ups has a leak that ought to be found rather than fed.

Where a leak test is carried out, bill it as its own line. It is diagnostic work and it is the thing that stops the customer paying for refrigerant three times a season.

Emergency callouts and the rate that already exists

Heating fails in cold weather and cooling fails in hot weather, which means your emergency work clusters exactly when your capacity is lowest.

Have an emergency and out-of-hours rate printed on your invoice template with a zero quantity when unused. It costs nothing until you need it, and it settles the pricing conversation at the door rather than afterwards.

For commercial customers, tie it to a stated response time. A four-hour response is a product, and one priced at your normal day rate is a product you are giving away.

Hourly, fixed price or per unit: how HVAC technicians price the work

HVAC runs two pricing models side by side because it runs two businesses side by side. Reactive callouts are hourly with parts on top, and planned maintenance is a contract price paid whether or not anything breaks. The contract is the one that pays your winter.

The move that changes an HVAC business is converting reactive customers to contracts, and the invoice is part of that. Put the maintenance option on the callout invoice as a named line with its price, so the customer reads it at the moment their system has just failed.

Working out what to charge

HVAC prices depend on your area, the equipment and the refrigerant market, so a rate from a web page cannot be yours. The cost estimator prices installs from your own equipment and labor costs, and the recurring invoices page handles maintenance contracts billed in advance.

Getting paid once it is sent

On installs, take a deposit that covers the equipment before you order it; maintenance contracts are billed in advance, so a reactive visit is the only thing left to invoice after the work. If the due date passes, the late fee calculator works out what your terms allow and the due date calculator sets the new date.

Five dates decide whether an HVAC technician gets paid on time, and four of them are set before the work starts.

Mistakes that cost HVAC technicians money

• Service and repair on one line. The customer cannot see what the contract covered and what it did not.
• Refrigerant added without a recorded weight. Bad for records and bad for explaining the charge.
• Maintenance contracts defined only by price. They get renegotiated on price every single year.
• No unit or site reference. A multi-site customer cannot approve it.
• No emergency rate on the template. It gets set during the emergency.

HVAC invoice questions

Ready to create your HVAC invoice?

The HVAC technician invoice template opens with the lines above already priced, in any of the designs made for the trade, and exports a print-ready PDF with nothing saved to a server. Opening a design needs a free account.

Invoicing guides for related trades

Everything on this site, set up for HVAC technicians

The whole toolkit, with the reason each one matters to HVAC technicians rather than in general. The four marked links open with hvac technician already selected.