Service calls and installations are fundamentally different types of work, and your tracking should reflect that difference.

Service calls are high-volume, lower-ticket transactions. A tech responds to a no-cool call, diagnoses the problem, replaces a capacitor, and collects $250. You might run 15 of these in a day across your team. For service calls, track revenue by category (repairs, maintenance agreements, diagnostic fees) rather than by individual job. Your accounting software should show total service revenue, average ticket, and service department labor costs so you can calculate gross margin for the department as a whole.

The key metrics for service calls are average ticket price, calls per tech per day, and callback rate. If your average service ticket drops from $280 to $220 over six months, you need to know that. If one tech has twice the callback rate of others, that’s eating into your margins in ways that won’t show up without proper tracking.

Installations need job costing at the project level. When you quote a $12,000 system replacement, you’re estimating labor hours, equipment cost, materials, permit fees, and maybe subcontractor costs for electrical or ductwork. You need to track actual costs against that estimate to know whether you made money on that specific job.

Set up each installation as a separate job in your accounting system. Every expense gets coded to that job. Equipment purchases, copper and fittings, refrigerant, dump fees for the old unit, labor hours. When the job is complete, you can see exactly what it cost versus what you charged.

Labor tracking is where most HVAC contractors fall short. Your install crew worked on three jobs this week. Without time tracking by job, you have no idea how many hours went to each. You might be estimating 16 hours for a standard changeout but actually spending 22. That difference is pure margin loss.

Materials matter too. That $12,000 job included $6,200 in equipment cost. But did it also include $400 in fittings and line sets that got charged to shop supplies instead of the job? Small miscodings add up. Over a year, you might be missing thousands in job costs because materials hit general expense accounts.

The payoff is knowing your real margins by work type. You might discover that high-efficiency installations are your most profitable work, or that certain equipment brands have higher callback rates that hurt long-term profitability. You might find that one install crew consistently comes in under estimate while another always runs over.

For service calls, monthly reports showing revenue, labor costs, and parts costs by department give you what you need. For installations, you want a job profitability report for every completed project. If this level of tracking feels overwhelming, working with bookkeeping services in Santa Fe NM that understand contractor operations can get your systems set up correctly from the start.