HVAC JOBS LOOK PROFITABLE. THE BALANCE SHEET IS STILL THIN.
HVAC subcontractors run out of cash for reasons specific to how the work is built and billed, on jobs that are making money. The three that cost the most in this trade are below, taken from hvac contractor research. Most sit at 75 to 90 days from finishing work to holding the money, and 45 days is achievable.
Cash and profit are measured on different clocks. Your profit and loss records revenue when you invoice and costs when you incur them, while the bank account only knows what cleared. Labour goes out weekly and collects 45 to 90 days later, minus retention. That distance is what a growing, profitable hvac company funds out of pocket, and it widens as you grow. The specific things that widen it in this trade are what the rest of this page is about.
WHERE IT LEAKS OUT.
HVAC runs three businesses: service agreements (recurring, fast cash), replacement/retrofit (consumer-financed, weather-driven, fast cycle), and new-construction subcontracting (pay apps, retainage, 56-day waits). Most shops blend all three; each has its own margin structure, cash curve, and now its own refrigerant economics (service on legacy R-410A reclaim pricing, replacement on A2L premiums).
Replacement demand spikes with heat waves and cold snaps; the trade staffs for peaks it can't schedule and carries the bench through shoulders. Service-agreement books are the smoothing instrument, the same annuity logic as paving's crack-seal and SWPPP's inspections.
WHAT MOVES MARGIN IN THIS TRADE.
The Regulator's Pen
The refrigerant rules rewrote themselves twice in eighteen months, and every rewrite repriced inventory, equipment, and tooling decisions already made. Regulatory whipsaw is a financial risk class: dated price bases, escalation language, and inventory sized to survive either direction.
The Certification Window
A2L-ready shops billed 18 to 30 percent labor premiums behind a weekend of certification and a few thousand dollars of tools per truck. Compliance capacity is pricing power, and the window belongs to whoever tools up before enforcement forces everyone to.
The Three-Book Blur
Service, replacement, and new construction are three businesses with three cash curves and, now, three refrigerant economics. One blended P&L prices all three wrong and hides which book carries the shop. (cfos-job-profitability-system) ---
DAYS SALES OUTSTANDING.
Ninety days is weak, 45 is the target, 30 is strong. Nothing else moves cash faster.
| Position | Days | What it means |
|---|---|---|
| Weak | 90 days | Roughly three months of work funded out of your own pocket. |
| Target | 45 days | Achievable on the days you control: submission timing, complete documentation, follow up in week two. |
| Strong | 30 days | Requires discipline every month, and it's the cheapest capital available to you. |
Moving from 90 days to 45 frees roughly annual revenue divided by 365, times 45 days. At $4M that's about $493,000. At $8M it's about $986,000. That money doesn't come from a bank and it costs no interest, which is why we work the cycle before discussing financing anything.
HVAC BENCHMARKS.
HVAC subcontractors at $1M to $5M net 8 percent, against a CFOS target of 11 percent, set at 10 percent before taxes or 3.5 points better than your trade's average at your revenue, whichever is higher. Working capital should sit at 13 percent of annual revenue, and the monthly close should finish by day 10 so the numbers can still change a decision.
FREQUENTLY ASKED.
