Running an HVAC business is a set of weekly decisions made from a handful of numbers, and the businesses that struggle are usually the ones where the numbers arrive too late to decide anything. This page is for the owner of a US HVAC contracting business, one to twenty trucks, asking how to run it as a business rather than as a very busy technician: the business model that pays, the KPIs to read every week, and the routines that keep the price book, the schedule and the cash honest. The free tools on this site do the arithmetic each routine depends on.
The HVAC business model in one sentence
Service calls find the problems, maintenance agreements keep the customers and fill the shoulder months, and replacements make the year. The three feed each other: a service call sells an agreement, an agreement visit finds the aging system, the replacement conversation is honest because the technician has been there twice. Run the model deliberately: every service ticket offers the agreement, every agreement visit records the unit's age and condition, every replacement quote shows options.
The HVAC kpis to read every week
Revenue per truck. Average service ticket. Agreements sold, due and renewed. Quote close rate by technician and by option tier. Unbilled completed work. Days from invoice to payment. Callback rate. Six or seven numbers on one page, compared with last week and last year. If producing them takes more than an hour, the systems are wrong; if nobody reads them, the owner is.
The price book is the margin
Everything you sell is priced from a billing rate built from your wage, burden, overhead and profit. Build it, review it twice a year, and put it on every truck so the price is the same whoever quotes it. The labor rate calculator on this site works the rate; the parts markup chart and the price book pages here explain the rest. An owner who does not know their loaded hour is running a business on hope.
The schedule is the ballast
Book agreement visits by season first, installs as quotes are won, and leave the peak-season day with room for the calls that pay most. Protect maintenance visits by sliding them, never cancelling. A schedule that is only reactive means a year that is only as good as the weather.
Cash: invoice at the door, bill agreements automatically
The gap between the work and the money is where small contractors die in a slow month. Invoice from the approved option before the truck leaves, take the card there, bill agreements to a card on file, and chase anything older than a month on a fixed day each week. Read the unbilled and the overdue figures on the KPI page every week. The invoice tool on this site produces the document; the habit is the owner's.
Questions people ask about how to run an hvac business
How to run a HVAC business with three trucks and no office manager?
Run the KPI page yourself weekly, put the price book on every phone, invoice at the door, and use the free tools here for the paperwork until the schedule outgrows one person.
Which HVAC KPI matters most?
Agreements sold and renewed, because it predicts next year's schedule and revenue. Close rate by option tier is second, because it tells you whether the price book is working at the kitchen table.
Is the HVAC business model different for commercial work?
The three streams are the same; the agreements are per asset, the replacements are bid, and the cash cycle is longer. Read the KPIs by segment if you do both.