HVAC paperwork, done properly

An HVAC estimate lives or dies on equipment detail. A homeowner comparing three bids cannot tell a 14.3 SEER2 builder-grade condenser from a two-stage unit unless you write the model number down, and the contractor who does is the one who stops competing on price alone. Put the equipment, the refrigerant, the permit and the startup on the page, and the cheap bid next to yours starts looking incomplete rather than cheap.

Pick your document

  • HVAC estimate

    An estimate is your best professional judgment of what a job will cost, given before the work starts.

  • HVAC quote

    A quote is a fixed price for a defined scope of work — the number does not move unless the scope does.

  • HVAC invoice

    An invoice is the request for payment once the work is done — the document that actually gets you paid.

What belongs on HVAC contractor paperwork

  • Make, model and efficiency rating for every piece of equipment — not "3-ton condenser"
  • Refrigerant type, which matters now that R-410A systems are being replaced with R-454B
  • Whether a permit and county inspection are included, and who files them
  • Line set, disconnect, pad and whip — the parts homeowners never think about until a bid omits them
  • Warranty split: manufacturer parts term versus your labor term, stated separately

How HVAC contractors price work

Most residential HVAC work prices as equipment plus labor, with labor either hourly or flat-rate per job type. Changeouts are usually quoted flat; diagnostics and repairs are usually hourly with a diagnostic fee credited against the repair. Equipment cost moves with the season and with refrigerant transitions, which is the main reason HVAC estimates should carry a short expiry.

The builder ships with 11 HVAC line items to start from, grouped into 3 sections. Edit the rates once and they save to your own price book.

Open the HVAC builder

Questions

Should an HVAC estimate include the equipment model number?
Yes, and it is the single highest-value line on the page. Model numbers let a homeowner verify efficiency and warranty terms, and they stop a competitor from underbidding you with lower-grade equipment the customer cannot distinguish. It also protects you: if a supplier substitutes, the change is visible rather than silent.
How do I handle a diagnostic fee on an HVAC estimate?
Put it on the page as its own line, then show the credit against the repair if the customer proceeds. A fee that appears as a line item with a stated credit reads as fair; the same fee mentioned only in conversation reads as a surprise charge.
Is HVAC labor taxable?
It depends on your state — several tax equipment but not installation labor, and a few tax both. Because of that, keep equipment and labor on separate lines and mark taxability per line rather than applying one rate to the whole document.