Bookkeeping for HVAC Contractors

HVAC bookkeeping is not general small business bookkeeping. Between seasonal revenue swings, technician payroll complexity, service agreement revenue recognition, and multi-software reconciliation, your books require someone who understands the HVAC business model from the inside.

Steph's Books provides outsourced bookkeeping for HVAC contractors across the country. We handle job costing, bank reconciliation, payroll, accounts receivable, accounts payable, and monthly financial statements — all configured specifically for how HVAC companies operate. We are also a preferred bookkeeping vendor for ServiceMaster franchise owners.

Why HVAC Bookkeeping Is Different

Seasonal Revenue Volatility

HVAC revenue spikes in summer (AC installations and repairs) and winter (heating system demand), with spring and fall creating significant slow periods. Your fixed costs — rent, insurance, truck payments, base payroll — do not stop during the off-season. Without proper cash flow planning, many HVAC companies find themselves profitable on paper but cash-strapped in reality.

The SBA recommends 3–6 months of operating expenses in reserve for seasonal businesses. We help you build those reserves during peak months and forecast cash needs 12–18 months ahead.

Job Costing Across Service Types

Not all HVAC work is created equal. Service and repair calls typically carry 50–65% gross margins. Maintenance agreements run 40–60% margins but provide predictable, recurring revenue. Residential installations land between 35–50% margins depending on equipment costs and labor efficiency.

If your books do not separate these revenue streams, you are flying blind on which parts of your business actually make money. We set up your chart of accounts to track profitability by service type, not just total revenue.

Technician Payroll Complexity

HVAC technician payroll is uniquely complex:

• Overtime — Most HVAC techs do not qualify for overtime exemptions. Time-and-a-half after 40 hours is mandatory.
• Spiffs — Sales performance incentive fund payments (SPIFFs) must be allocated back to the week they were earned for overtime recalculation. Most contractors get this wrong.
• Commissions — Often tracked in separate spreadsheets, disconnected from payroll systems.
• Burden rate — A technician earning $30/hour actually costs $42–$45/hour after payroll taxes, workers' comp, benefits, and tool allowances. If you are not calculating fully loaded labor costs, you are underpricing every job.

Service Agreement Revenue Recognition

Maintenance contracts now capture 55% of all HVAC services revenue and are growing at 8.3% per year. But how you recognize that revenue matters. Under ASC 606, maintenance agreements are treated as separate performance obligations. Revenue can be recognized as services are delivered, straight-line over the contract period, or on a percentage-of-completion basis. We set up the right method for your business and ensure your books reflect reality.

Software Integration

Most HVAC companies use field service software — *ServiceTitan*, *Housecall Pro*, or *Jobber* — alongside QuickBooks. These integrations are powerful but imperfect. ServiceTitan exports journal entries automatically; Housecall Pro offers two-way sync; Jobber has known issues with line item drops. We reconcile the data between your field software and QuickBooks so your books are accurate regardless of which platform you use.

HVAC Financial Benchmarks

• Net profit margin (target) — 12% (DOE/ACCA)
• Gross margin — service/repair — 50–65%
• Gross margin — maintenance agreements — 40–60%
• Gross margin — residential installs — 35–50%
• Revenue per technician — $150K–$250K (avg), $250K–$450K (well-run)
• Median technician wage — $59,810/year (BLS, May 2024)
• True cost per tech hour — $42–$45/hr on $30/hr base wage
• Warranty reserve target — 1–2% of job income