Sump Pump Installation Break-Even Point: About $58K Per Month

Fixed costs $40.1K/mo Payroll plus overhead

Contribution margin 81% After variable costs

Break-even revenue $49.5K/mo Revenue to cover fixed

Break-even timing Month 4 Model reaches break-even

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against break-even for a sump pump installation service.

Lean Base Full

Monthly revenue Revenue sets the margin left after variable costs. $ Slow month Strong month Variable expenses Use direct costs that move with each job and service call. $ Tight costs Higher costs

Money available to cover fixed costs $319,481 $384,917 revenue - $65,436 variable expenses

Margin ratio

83%

Covers fixed costs

Yes

Fixed monthly costs Use payroll and overhead the business pays each month. $ Lean overhead Higher overhead

Break-even chart Revenue Total costs

Which sump pump installation expenses are fixed, and which move with sales?

Cost classification

Break-even only works if fixed overhead stays separate from per-job spend. In the first operating year, core monthly overhead sets the floor, while materials at 12% and fuel at 7% move with revenue.

Expense	Cost	Break-Even Treatment	Common Mistake
Warehouse and office rent	Fixed	Include $4,500 per month before calculating the revenue needed to break even.	Assuming rent falls when install leads slow.
General liability and workers comp insurance	Fixed	Include $1,200 per month as recurring overhead across the planning range.	Leaving insurance out until cash gets tight.
CRM and scheduling software subscriptions	Fixed	Include $650 per month as the dispatch and scheduling base.	Treating software as optional after technicians are active.
Utilities and telecommunications	Fixed	Include $800 per month in the fixed overhead base.	Modeling phones and utilities as per-job expenses.
Core payroll	Fixed	Use about $31,400 per month in the first year, based on $377,000 of annual salaries divided by 12.	Assuming payroll disappears when the calendar has gaps.
Direct equipment and material costs	Variable	Model at 12% of revenue in the first year; this spend rises with completed work.	Using a flat dollar amount instead of a revenue-linked rate.
Fuel and vehicle maintenance	Variable	Model at 7% of revenue in the first year because route activity rises with jobs.	Forgetting that busy routes add fuel and upkeep.
Extra vehicle, dispatcher, or warehouse space	Semi-fixed	Add in steps after route capacity fills, not with every single job.	Treating fleet commitments like they vanish when leads slow.

How does break-even change across lean, base, and full sump pump service plans?

Scenario table

Break-even shifts because the fixed load stays near $472K a year while revenue and mix change. The lean case still runs short, the base case clears the hurdle, and the full case builds a wide cushion.

Planning assumptions only; actual results will move with job mix, pricing, and local demand.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch test	$50K	$195K	$472K	67.5%	-$67K	Still below break-even, so this is a demand test.
Base operating plan	$131K	$511K	$472K	67.5%	$589K	This clears fixed cost and fits the funded plan.
Full routed capacity case	$200K	$780K	$472K	67.5%	$1.15M	Strong cushion here, but only if crews stay fully used.

What breaks first if revenue slips or costs rise?

Stress test

The base plan has a wide cushion, but it tightens fast if installs slow, CAC stays above $450, materials rise over 12%, or fleet costs come online before routes are full.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$583K	$989K cushion	Strong base cushion if installs stay on plan.
Revenue shortfall	Year 1 revenue falls 20% to about $1.26M.	$583K	$675K cushion	Lower top line still covers overhead, but slack shrinks.
Fixed-cost increase	Fixed commitments rise 15%.	$670K	$902K cushion	Higher overhead pushes break-even up and trims room for error.
Margin pressure	Variable expenses rise from 19% to 24%.	$621K	$951K cushion	Material or fuel creep eats margin before sales do.
Combined pressure	Revenue falls 20%, fixed costs rise 15%, and variable expenses rise to 24%.	$714K	$544K cushion	The model still clears break-even, but the cushion drops fast.

Can this sump pump service clear break-even before you lock in trucks, tools, payroll, and paid leads?

Founder checklist

Test whether $2,800 installation pricing and $450 Year 1 CAC can fill the pipeline fast enough to cover the $8.65K monthly fixed load. If the model cannot protect the $681K cash trough in Month 2, delay the truck and hiring lock-in.

1Install Price$2,800

Validate that homeowners still book at $2,800 before you scale paid leads, because this price sets the rest of the model.

2Year 1 CAC$450

Check that a $450 Year 1 CAC still produces booked jobs fast enough to support the $85K first-year marketing budget.

3Contribution81% CM

Confirm supplier terms keep pumps, basins, pipe, fittings, batteries, and alarms inside the 12% equipment line, and hold fuel and maintenance near 7%, so contribution stays around 81% before payroll and rent.

4Fixed Burn$8.65K/mo

Make sure the monthly fixed load covers rent, insurance, software, utilities, and accounting before you lock in overhead.

5Launch Capex$195.5K

Hold the first-wave truck, tool, IT, racking, and wrap spend until the Month 2 cash trough can still stay above $681K.

6Hire TimingMonth 4

Add trucks and headcount only after install capacity, dispatch flow, and emergency response standards are proven, because break-even lands in Month 4.