911 Bookkeepers is a Baton Rouge bookkeeping and payroll firm built specifically for HVAC contractors and service trades. We handle your books, run your payroll, and give you a clear picture of where your money is going — so you can stay focused on the work that actually pays. We use Xero for bookkeeping and Patriot Payroll for payroll.
The owner of 911 Bookkeepers is a licensed paramedic and former HVAC field worker. He has pulled condensate lines, run service calls in Louisiana heat, and managed crews across multiple trucks. A generalist bookkeeper sees an invoice from a refrigerant supplier and files it under “supplies.” We know that R-410A going into a job belongs in job cost — and that tracking it by unit tells you whether that install was actually profitable. We speak your language. And we know where the money leaks.
If you're trying to understand HVAC bookkeeping before you hire anyone — here's the part most generalist firms skip. These are the three things that separate trades-specific bookkeeping from a standard small-business setup.
A generic chart of accounts lumps everything into "supplies" and "subcontractors." An HVAC-specific chart of accounts separates the line items that actually drive job profitability:
This structure is what makes job costing by truck and tech possible in the first place — you can't report on it if the chart of accounts was never built to capture it.
Most small HVAC companies file taxes on a cash basis, and that's fine for the IRS. But cash-basis books can lie to you operationally. If you collect a $4,800 annual maintenance agreement in January, cash-basis accounting shows that entire amount as January revenue — even though you'll be performing service calls against it all year. Accrual-style deferred revenue recognition (recognizing roughly $400/month) gives you a far more honest read on whether a given month was actually profitable. The same logic applies to large jobs that span a billing cycle: accrual accounting matches the labor and material cost to the period the revenue was earned, which is the only way job costing numbers mean anything.
Service trucks, diagnostic tools, and shop equipment are some of the largest capital expenditures a small HVAC business makes — and they depreciate on a schedule that affects both your tax bill and how "profitable" your books look month to month. A new service van and the tools loaded into it may qualify for Section 179 expensing in the year of purchase rather than being depreciated over five-plus years, which can swing a year's net income substantially. Getting this election right (or wrong) is the kind of detail a bookkeeper unfamiliar with the trades is unlikely to catch.
Is HVAC bookkeeping different from regular small-business bookkeeping?
Yes — the difference is mainly in the chart of accounts and job costing structure. HVAC businesses need to track equipment, refrigerant, and labor cost per job and per truck, which a generic bookkeeping setup typically doesn't capture.
Should my HVAC business use cash or accrual accounting?
Most file taxes cash-basis, but tracking maintenance agreement revenue and large jobs on an accrual basis internally gives a far more accurate monthly picture — especially for job costing. Many HVAC contractors benefit from a hybrid: cash-basis for tax filing, accrual-style internal reporting for decision-making.
What is job costing in HVAC, exactly?
It's tracking revenue and cost (materials, labor, truck time) at the individual job level, so you can see margin by job, by technician, and by truck — instead of only knowing your overall monthly profit. See our job costing breakdown for the full mechanics.
There are two kinds of HVAC owners we talk to. The first group is doing their own books — reconciling at midnight, dreading tax season, making pricing decisions on gut feel. The second group has a bookkeeper or CPA, but that person handles dentists and restaurants and retail shops too. They don’t know what a maintenance agreement is. They’ve never heard of ServiceTitan. Both groups end up flying blind. 911 Bookkeepers is the alternative — one firm, built specifically for trades, that treats your financials like a first responder treats a scene: with speed, accuracy, and no guessing.
We price by scope, not by the hour. When you come on as a client, you know exactly what you’re paying every month — whether we log two hours or twelve. No surprise invoices. No tax-season scramble fees.
All work is delivered remotely — secure client portal, real-time access to your financials in Xero, and a direct line to your bookkeeper. No waiting for callbacks. No “your account manager will be in touch.” When your books need attention, you call 911.
Book a free 20-minute call. We’ll look at where you are, tell you what we can fix, and give you a straight answer on whether we’re the right fit.