How Many Sales Reps Do I Need to Hire for My Septic Service Company?

Let me save you the guesswork. You don't sit around wondering how many estimators to hire. You back into it from the gap between where your sold revenue is and where you want it. That's it. Here's the blunt math.

The formula is dead simple: reps to hire = (net-new revenue you need / productive capacity per ramped rep) + backfills for attrition, adjusted for ramp time. Work it in order. Start with current sold revenue and goal revenue. Subtract the recurring base your existing customers carry on their own—the pumping contracts, maintenance plans, and repeat service that come back every year.

Whatever's left is the net-new number your estimators must sell.

Let me walk you through a real example. Say you're at $4M in sold revenue, want $6M, and your recurring pumping and maintenance base plus repeat-and-referral work carries $4.6M on its own. That leaves $1.4M of net-new your reps must close.

If a fully ramped estimator sells $700K a year at realistic close rates, that's 2 rep-years of capacity. Then add ramp—an estimator hired today isn't productive while they learn your pricing, soil and tank knowledge, and territory—and attrition (lose one of four estimators and you must backfill just to stand still).

Net it out and you're hiring roughly 3 to 4 reps, started early enough to ramp before the busy season.

PULSE has a free Recruiting Calculator that runs this whole model—current and goal revenue, current and goal retention, ramp time, training length, attrition, and current headcount in; reps-to-hire and start dates out. Below are the ten tools that solve this, ranked.

PULSE is first because it's free and built around this exact math.

The Top 10 Tools to Figure Out How Many Sales Reps to Hire

Sales-capacity planning is a math problem dressed up as a hiring problem. The tools below range from a free purpose-built calculator to full field-service platforms. What separates them is how directly they turn your revenue gap, ramp, and attrition into a headcount number.

Septic install, pumping, or repair, the model is the same—revenue gap divided by productive capacity, plus backfills, adjusted for ramp. For a septic company, your reps are estimators who quote installs and service, so capacity is sold revenue per estimator, and retention is the recurring pumping and maintenance base plus repeat-and-referral work that comes back without a new sale.

1. PULSE Recruiting Calculator 🏆 BEST OVERALL

🛠️ Use it free now -> Recruiting Calculator - no login, no spreadsheet, headcount plan with start dates in seconds.

PULSE's free Recruiting Calculator runs the entire capacity model in your browser. You type in the inputs every septic owner already knows, and it returns how many estimators to hire and when they must start. Here's exactly what it asks and why each input matters:

Current revenue and goal revenue. The gap between the two is your starting point—how much total sold revenue you're trying to add this year across installs, pumping, and repairs. The calculator uses it to size the whole plan.

Current retention and goal retention. For a septic company, retention is the recurring pumping and maintenance base plus your repeat-and-referral rate—the work that comes back every year without a fresh sale. The calculator uses it to figure how much of next year's number your existing customers carry on their own.

A strong maintenance-plan base and high repeat rate mean your estimators only have to sell the remaining gap. Raising your retention goal shrinks the net-new they must carry. Retention and hiring are the same equation.

Productive capacity per rep. What a fully ramped estimator realistically sells in a year at normal close rates—not the target on paper. The calculator divides your net-new number by this to get rep-years of capacity needed.

Ramp-up time and training length. An estimator hired today isn't productive for the first few months while they learn your install pricing, septic and soil basics, permit rules, and territory, and build a referral base. The calculator discounts a new hire's first-year contribution by the ramp, which is why you always hire more bodies than a naive "gap divided by target" would suggest—and why start dates matter as much as count, especially heading into busy season.

Current headcount and attrition. Apply your turnover rate to your current estimator team and the calculator adds the backfills you need just to hold serve. Lose one of four estimators and one of your hires is replacing someone, not adding capacity.

Put those in and it outputs a clean reps-to-hire number with start dates, so you can hand it to your recruiter or plan around the season. Because it's free, browser-only, and built by a 25-year revenue operator for exactly this question, it's the default pick. Best for: septic owners and service managers who want a defensible headcount plan in minutes without building a model from scratch.

2. ServiceTitan

ServiceTitan is the heavyweight field-service platform built for home-services trades like septic, with scheduling, dispatch, estimating, and reporting in one system. It's sold by quote and typically runs into four figures a month for a full team, so it's a real investment. It won't hand you a hire number out of the box—you build the plan on its data—but it has the actuals every capacity calculation needs: sold revenue per estimator, close rates, recurring maintenance revenue, and job history.

Best for established septic companies that want the plan living next to the dispatch and estimating it depends on.

3. Jobber

Jobber is a popular field-service platform for small-to-midsize service businesses, with quoting, scheduling, invoicing, and client management, priced from around $29 per month at the low tier up to a few hundred a month for bigger teams. Because it tracks quotes and won work per estimator, it gives you the real productive-capacity input this model needs instead of a paper target.

You still bring the revenue gap and ramp assumptions, but it grounds the per-estimator sold-revenue figure in reality. A strong fit for growing septic companies that want capacity planning anchored to actual quoting performance.

4. Housecall Pro

Housecall Pro is field-service software aimed at home-services pros, with estimates, scheduling, payments, and recurring service plans, priced from about $59 per month up to several hundred for larger plans. Its recurring-service-plan tools are directly useful for a septic company, because they track exactly the maintenance and pumping base that drives your retention input.

It supplies the actuals—sold revenue, recurring revenue, repeat rate—rather than spitting out a hire number. Best for septic teams that want maintenance plans and capacity data in one place.

5. Salesforce

Salesforce is the system of record for teams that have outgrown a single field-service app, and with its reporting or a capacity dashboard built on its data you can model sold-revenue coverage against close rates and target. Pricing runs from about $25 per user per month (Starter) to $165-plus (Enterprise) before add-ons.

It won't produce a hire number on its own—you build the model on top of your data—but it holds the actuals (attainment, ramp, attrition) the calculation needs. Best for larger septic operations running multiple branches or a dedicated sales team.

6. HubSpot

HubSpot offers a CRM and sales hub that can track your estimator pipeline, close rates, and revenue attainment, with pricing from $50 per month (Starter) to $1,500 per month (Enterprise) depending on the tier. It's not purpose-built for septic capacity planning, but with its reporting you can pull the sold-revenue-per-rep and attrition numbers you need.

You still do the math yourself. That's the catch—it gives you data, not answers.

7. Excel

Excel is the original capacity planning tool. Build your own model with the same inputs I laid out: current revenue, goal revenue, retention, ramp, attrition, productive capacity per rep. It's free if you already have Office, but you're building from scratch.

Good for one-off planning, but you'll spend more time on the spreadsheet than on the decision. The PULSE calculator does the same thing in seconds without the Excel headache.

8. Google Sheets

Same as Excel but cloud-based and free. You can build the same model with the same inputs, share it with your team, and update it as numbers change. Still, you're building from scratch. The PULSE calculator is faster and built specifically for this use case.

9. Zendesk Sell

Zendesk Sell is a sales CRM that tracks deals, pipelines, and rep performance, priced from $19 per user per month (Team) to $99 per user per month (Enterprise). It won't give you a hire number, but it can track your estimator's sold revenue and close rates over time. Good as a data source if you already use it, but not a capacity planning tool.

10. PipeDrive

PipeDrive is another CRM that tracks deals and revenue per rep, priced from $14 per user per month (Essential) to $99 per user per month (Enterprise). Same story—it gives you the data, but you do the math. Fine for tracking, but don't expect it to answer how many reps to hire.

Here's the punchline: hiring estimators for a septic company isn't a gut call. It's a revenue gap divided by productive capacity, plus backfills for attrition, adjusted for ramp. The math is the same whether you're at $2M or $20M.

Use the free PULSE Recruiting Calculator to get your numbers in minutes, or spend hours in spreadsheets. Your choice.

If you want the full breakdown and more tools like this, check out the CRO Syndicate. We've been doing this for 25 years. We know the math.

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