I spent three years running my HVAC and plumbing operation on intuition. Volume felt good. Busy felt successful. Then I looked at my actual numbers and realized I was working harder, making less, and couldn't tell you why.
Turns out, I was obsessed with metrics that don't matter. Lead count. Platform activity. How fast my phone buzzed. None of those told me if I was actually building something profitable.
Here's what changed: I stopped counting leads and started counting the only four numbers that matter.
1. Cost Per Qualified Lead (Not Just Cost Per Lead)
This is the one everyone talks about. Thumbtack charges me $40 per lead. HomeAdvisor charges $35. Seems straightforward.
Except it's not. A lead isn't a lead. A $40 lead from Thumbtack that has a 28% close rate is fundamentally different from a $35 HomeAdvisor lead with an 8% close rate.
What you actually need: Cost per qualified lead — which means cost per lead that closes.
Here's the math: If Thumbtack costs $40 per lead and closes at 28%, your real cost per closed job is $143 in lead spend. If HomeAdvisor costs $35 and closes at 8%, your real cost is $438.
That's a 3:1 difference. And most contractors never see it because they're looking at the headline price, not the conversion math.
I run this calculation monthly now. It's the single best filter for deciding where my marketing budget goes.
2. Revenue Per Lead Closed (Your Real Profit Indicator)
Cost per lead is only half the equation. The other half: what does each closed lead actually bring in?
Your average HVAC job might be $1,800. But are all jobs $1,800? Not even close. Some are $900 service calls. Some are $6,500 system replacements.
Platforms produce different job mixes. Thumbtack sends me a lot of smaller maintenance calls. Angi sends bigger system replacements. Same platform doesn't mean same revenue.
So I track: Average job value by platform.
| Platform | Cost Per Lead | Close Rate | Avg Job Value | Revenue Per Lead Closed |
|---|---|---|---|---|
| Thumbtack | $40 | 28% | $1,200 | $4,286 |
| HomeAdvisor | $35 | 8% | $1,800 | $22,500 |
| Angi | $45 | 22% | $2,100 | $9,545 |
That table is from my actual dashboard (rounded for privacy). Look at the last column. HomeAdvisor doesn't look great on close rate, but the jobs are bigger and the lead cost is lower. The real return per lead is 5x better.
I know which platform to invest in now. And I didn't guess.
3. Win Rate by Response Time (Speed Is Your Unfair Advantage)
I wrote about this before, but it bears repeating because almost nobody does it: track how fast you respond and compare it to how much you actually close.
Most contractors respond "when they get to it." Some same day. Some next day. Some… eventually.
I started timing it. And the data was embarrassing.
- Responded within 1 hour: 34% close rate
- Responded within 4 hours: 18% close rate
- Responded next day: 7% close rate
The drop-off from 1 hour to 4 hours is a 47% loss in conversion. Most contractors absorb that loss without realizing it exists.
Now my team checks high-quality leads (80+ score) within 20 minutes of arrival. It's not hustle theater — it's a measurable business lever that moves the needle more than anything else I've tested.
Tracking your close rate by response time tier reveals whether speed is your competitive advantage or your biggest leak.
4. Seasonal Demand Pattern (Plan Instead of React)
This one separates the operators from the order-takers.
Every service business has seasonal swings. HVAC explodes in January (heaters break) and August (AC failures). Plumbing peaks in spring (thaw damage). Most contractors just ride the wave.
But if you track your leads month-by-month for a full year, you can see your actual pattern. Then you plan around it.
My data:
- January: 180 leads, 34% close rate
- July: 220 leads, 19% close rate
- October: 65 leads, 26% close rate
January is high volume + high conversion. That's where I aggressively buy leads. July is high volume but low conversion — the homeowners are window shopping before they commit. October is slow — I reduce spend, protect margin, don't chase every lead.
Most contractors don't know their own pattern. They just hope it's busy when they need money.
Pull your last 12 months of lead data. Chart it by month. You'll see your rhythm. Then build your marketing budget around reality instead of around panic.
The System That Actually Works
These four numbers — cost per qualified lead, revenue per lead closed, win rate by response time, and seasonal demand pattern — are the only ones I care about now.
Everything else is noise.
You don't need fancy software to track them. A spreadsheet works. But you do need to look at them. Monthly minimum. Weekly is better.
The contractors I know who've scaled their businesses don't have better leads or luckier timing. They just know their numbers. They see the pattern before it becomes a crisis. They cut what's losing and double down on what works.
That's not magic. That's measurement.
Start with one: pick the metric that would hurt the most if you got it wrong. Track it for 30 days. See what it tells you. Then build from there.
Your next growth decision should be based on data, not on feeling.