Topic · Technician Utilization

Your technicians are busy. That's not the same as utilized.

Technician utilization is the ratio of billable hours to available hours. Most HVAC owners think it's high because the trucks are always rolling. The actual number is almost always lower than they expect — and the gap is where significant revenue is being lost.

How to actually measure it

Technician utilization = billable hours ÷ available hours. If a technician works an 8-hour day and generates 5.5 hours of billable work (calls, installs, diagnostics billed to customers), that's 69% utilization. Industry best-in-class is 75–85%.

The challenge is that most HVAC business owners don't actually know what their number is. They know how many calls each tech ran. They don't know the ratio of billable to available time — because the lost time (drive, waiting on parts, between calls, callbacks) doesn't get logged anywhere.

The first step is building the measurement. That means tracking: total available hours per tech per week, billable hours per tech per week (from service tickets), drive time, and callbacks. You need four weeks of data to establish a baseline. Most owners don't have this — but it takes about a week to set up the tracking.

What the math looks like

3 technicians × 8-hour days × 5 days = 120 available hours/week. If they're collectively billing 78 hours, that's 65% utilization. Improving to 78% is 14 additional billable hours/week. At $125/hour blended rate, that's $1,750/week — or roughly $91,000/year in additional revenue from the same labor base.

Where utilization gets lost
Drive time between calls
Poor routing adds 45–90 minutes of non-billable drive time per tech per day in suburban and exurban markets.
Callbacks consuming productive time
A 10% callback rate on 50 weekly calls means 5 returns per week — often 1–2 hours each — fully non-billable.
Waiting on parts mid-job
No parts strategy means technicians sitting at a job or the supply house. Even 30 minutes per day per tech is significant across a week.
Over-long diagnostic calls
Without a structured diagnostic process, techs spend variable, often excessive time on diagnoses that should take 20–30 minutes.
Poor first call assignment
Sending a senior tech to a simple capacitor call wastes capacity. Technician skill routing isn't just about customer service — it's utilization management.

The levers that actually move it

Once you have the baseline, the interventions fall into three categories: routing and dispatch, callback reduction, and parts strategy. Most businesses can improve utilization 8–12 percentage points within 60 days by addressing all three.

Routing improvement doesn't require software. It requires a dispatcher who is actively managing geographic clustering of calls, not just filling the board in call-received order. The simple rule: technicians shouldn't cross each other's paths when both could be routed to the closer call.

Callback reduction is a diagnostic standards issue, not a technician quality issue. Callbacks cluster on specific job types — usually refrigerant-related and electrical. Building checklist-based diagnostic protocols for those job types typically cuts callback rate by 40–60% within six weeks.

High-impact improvements
Geographic dispatch clustering
Reduces drive time 15–25% with no additional tools or hiring required.
Diagnostic checklists on high-callback job types
Reduces callbacks by 40–60% on the targeted job types within 6 weeks.
Parts stocking by technician truck
Eliminates most same-day parts waiting. Stock the top 20 parts by call frequency, not the full catalog.
Skill-based call assignment
Senior techs handle diagnostically complex calls; junior techs handle straightforward repairs. Improves throughput and mentorship simultaneously.

Want to know your actual utilization number?

We can help you build the measurement and identify where you're losing billable time. Start with a company diagnostic.

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