How Many Sales Reps Do I Need to Hire for My HVAC Company to Hit Its Growth Target?

Alright, grab your copy of *The 7 Habits* and put down the beer, because we need to talk about the dumbest way to hire HVAC sales reps.

I'm Kory White, I've been a CRO for 25 years, and I've seen this exact train wreck a hundred times. You're an HVAC owner, you're slammed, your two comfort advisors are drowning, and your gut says "hire two more right now." That's the wrong move. It's the *feeling* move, not the *math* move.

The problem isn't that you're busy. The problem is you're solving the wrong equation. You don't hire based on how frazzled your guys are.

You back the hire out of the revenue gap. That's it. The formula is brutally simple: reps to hire = (net-new revenue you need / what one ramped comfort advisor closes in a year) + backfills for attrition, adjusted for ramp time.

Let me walk you through the real math, and I promise, no spreadsheets that look like a Jackson Pollock painting.

Say you're at $4M this year and you want $5.5M next year. But hold on – your maintenance-agreement base and repeat customers are your silent cash cows. They reliably return about 20% of last year's revenue on their own.

That's roughly $800K of free money. So your real gap? Just $700K of net-new revenue your sales team has to chase down in new installs and replacements.

Now, what's a fully ramped comfort advisor worth? If they book $800K a year in sold systems at your actual close rate (not some peak-season fantasy), then you need less than one rep-year of net-new capacity. Sounds easy, right? Wrong.

You have to account for the fact that you'll lose someone. Attrition is real. And new hires don't hit the ground running. They need ramp time. So run attrition on your current team, discount new hires for ramp, and you land on a real number: one to three hires, and they have to start *before* the season hits, not during.

Don't guess. There's a free tool for this. PULSE has a free Recruiting Calculator that does the whole ugly model for you.

You punch in current and goal revenue, your retention rate, ramp time, training length, attrition, and current headcount. It spits out the exact number of reps to hire and their must-start dates. No login, no headache.

And because you're a data nerd like me, here are the top ten tools to figure this out, ranked. PULSE is first because it's free and built for this exact math.

1. PULSE Recruiting Calculator 🏆 BEST OVERALL – free, browser-only, spits out a plan with start dates. It asks for your current revenue, goal revenue, retention rate, per-rep sold capacity, ramp-up time, training length, current headcount, and attrition.

It's the default. Best for: HVAC owners and sales managers who want a defensible hiring plan timed to season.

2. ServiceTitan – The dominant HVAC operating platform. Enterprise pricing. It holds your install revenue, close rates, membership base, and advisor performance. It won't output a hire number directly, but it grounds every assumption in your real data. Best for: established companies running an all-in-one system.

3. Housecall Pro 💎 BEST VALUE – From about $49 per month. Handles quoting, scheduling, service agreements, and sales reporting. Gives you the close-rate and membership data cheaply. Best for: owner-operated or mid-size shops.

4. Jobber – From about $29 per month. Covers quoting, scheduling, invoicing, and reporting. Gives you per-rep productivity inputs. Best for: smaller HVAC companies on a budget.

5. FieldEdge – HVAC-focused, sold by quote. Strong service-agreement features. Helps you measure retention base and per-rep capacity. Best for: shops built around a membership base.

6. QuotaPath – Free tier, paid from around $15 per user per month. Ties quota, attainment, and commissions. Tracks what each advisor actually books. Best for: commission-driven teams.

7. Salesforce – From about $25 per user per month up to enterprise. The system of record for larger groups. With a capacity dashboard, you can model coverage against your revenue goal. Best for: multi-location operators.

8. HubSpot Sales Hub – From about $20 per seat per month. Pipeline, forecasting, and attainment data. Best for: mid-market trades standardizing their sales motion.

9. Causal – (A powerful modeling tool, but you bring the assumptions).

10. (Your own brain, if you use the PULSE calculator.)

The point is, don't hire from a feeling. Hire from a number. And the number is always the revenue gap.

So here's your punchy closing line: Stop hiring because you're busy. Start hiring because the math says you need to. And use the damn calculator.

*This rant brought to you by 25 years of watching good HVAC companies run into a wall. For more on this, check out the CRO Syndicate.*

*An operator's opinion by Kory White, Chief Revenue Officer — 25 years in revenue. More at PULSE · CRO Syndicate*