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HVAC contractors
Bookkeeping for HVAC companies with a seasonal business and recurring agreements.
Two peaks, two slow stretches, maintenance agreements collected up front, and margin that differs sharply between a repair and a full system replacement.
What goes wrong
Where HVAC books usually break.
Maintenance agreements are collected up front and recorded as revenue immediately, which inflates the peak and empties the shoulder months of the revenue they actually earned.
Cash planning is done off the last busy month, so the slow stretch arrives without a plan for payroll.
Repair, replacement, new construction, and agreement revenue share accounts, so the highest margin line cannot be identified or grown deliberately.
Equipment cost, freight, and permit fees are not consistently assigned to installs, so replacement margin looks better than it is.
Financed jobs are recorded at the net funded amount, so revenue is understated and financing fees are invisible.
Warranty and labor guarantee obligations are never quantified, so a known future cost sits nowhere in the books.
Industry evidence
A growing market where recurring agreements are the stable asset.
$159.4B
US heating and air conditioning contractor revenue in 2026, across about 120,000 businesses
74%
of homeowners rate a maintenance agreement as important or better, and 57% expect to pay about $100 a year
October
the busiest month for HVAC fleets, measured by trips, drive time, and miles, with February the slowest
72%
target gross margin on HVAC service work, with maintenance at 70% and residential replacement at 50%
What our team handles
What the engagement covers.
01
Agreements as deferred revenue
Plan revenue carried as a liability and earned across the term, which smooths reporting and shows the recurring base as an asset.
02
Seasonal cash planning
A cash outlook built on your actual seasonal pattern, payroll dates, and equipment purchasing, so the slow months are planned rather than survived.
03
Margin by install type
Repair, replacement, new construction, and agreement work separated, with equipment, freight, and permits assigned to the install.
04
Financed jobs at gross
Revenue recorded at contract value with financing fees shown as their own cost, so pricing decisions use the real margin.
05
Loaded labor and truck cost
Full labor burden and vehicle cost allocated, so a replacement carries its real cost of delivery.
06
Warranty exposure quantified
Labor guarantee and warranty obligations estimated and visible instead of appearing as a surprise expense.
Maintenance agreements are the most valuable thing on the books, and usually the worst recorded.
Recorded correctly, agreements smooth the year, show a real recurring base, and become the number a buyer or lender cares about most. Recorded as immediate revenue, they distort every month they touch.
What you should be able to see
What you should be able to answer.
- Margin on repair against replacement against new construction
- Recurring agreement revenue, and how much is still deferred
- Agreement retention and the revenue at risk in renewals
- Average install cost by equipment tier
- True cost of financed jobs after fees
- A cash outlook through the next slow season
- Revenue per technician across peak and shoulder months
Questions
What owners in this trade ask.
How should maintenance agreements be recorded?
As a liability when collected, earned across the term of the agreement. That matches revenue to the service you owe and makes the recurring base measurable.
Can you help plan for the slow season?
Yes. A rolling cash outlook built on your own seasonal pattern is one of the highest value pieces of an HVAC engagement.
We use financing on most replacements. Does that change the books?
It should. Revenue belongs at contract value with the financing fee recorded as its own cost. Netting it hides both your real revenue and the cost of offering financing.
Can you report margin by equipment brand or tier?
Yes, when purchases are coded to the install. That reporting often changes what a company chooses to sell.
Related industries
Nearby work our team knows well.
Contractors
Job costing, retainage, progress billing, and change orders that never reached the books.
Electrical
Service and project work side by side, material draws, and truck stock that quietly becomes cost.
Plumbing
Call volume, warranty work, parts markup, and technician time that has to tie to revenue.
Next step
Plan the slow season instead of absorbing it.
Take the assessment for an immediate score and a short list of priorities, or book a call and talk it through with our team. No contact details needed to see your score.
Free. About 6 minutes. 25 questions. No contact details required.