Clean Agent Fire Suppression Break-Even: ~$86k Monthly Revenue

Fixed costs $65.0K/mo Overhead base

Contribution margin 73% After variable costs

Break-even revenue $89.0K/mo Monthly sales target

Break-even timing Month 20 First break-even

Break-even calculator

Use this calculator to test monthly revenue, variable expenses, and fixed costs against break-even.

Lean Base Full

Monthly revenue Revenue is the cash base that has to cover variable and fixed costs. $ Low sales Strong sales Variable expenses These are the direct costs tied to each month of work and revenue. $ Lean costs Heavy costs

Money available to cover fixed costs $86,312 $115,083 revenue - $28,771 variable expenses

Margin ratio

75%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly cost base that contribution margin has to cover. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which expenses are fixed, and which move with installs and service work?

Cost classification

Break-even gets shaky when project costs are parked in overhead or fixed costs are pushed into jobs. At $681k first-year revenue, the listed variable rates total 27.0% before payroll and fixed overhead.

Expense	Cost	Break-Even Treatment	Common Mistake
Warehouse and Office Rent	Fixed	Include $6,500 per month in fixed overhead.	Tying rent to each project bid.
Professional Liability Insurance	Fixed	Include $2,200 per month in fixed overhead.	Treating insurance as job-only.
Clean Agent Chemical Supplies	Variable	Use 12.0% of first-year revenue, about $81.7k on $681k.	Ignoring agent usage in gross margin.
Hardware and Control Components	Variable	Use 8.0% of first-year revenue, about $54.5k on $681k.	Burying components in overhead.
Project Freight and Logistics	Variable	Use 4.5% of first-year revenue, about $30.6k on $681k.	Quoting freight after bid approval.
Field Consumables and Tooling	Variable	Use 2.5% of first-year revenue, about $17.0k on $681k.	Calling all tools fixed.
Lead Installation Technician Payroll	Semi-fixed	Model 2 FTE at $78k each in the first year.	Assuming payroll flexes like subcontract labor.
Fleet Maintenance and Fuel	Semi-variable	Start with the $3,800 monthly base, then test route growth.	Treating fuel as flat when routes expand.

How does break-even change from lean ramp to full operating month in a clean agent fire suppression business?

Scenario table

These scenarios shift break-even because revenue ramps faster than payroll and overhead, while variable costs ease from 27% to 23%. Still, earnings before interest, taxes, depreciation, and amortization (EBITDA) stays negative in Years 1-2, so the lean case carries the biggest cash gap.

Planning figures only; actual break-even will move with project mix, staffing, and timing.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean ramp year 1	$568k/mo	$153k/mo	$627k/mo	73%	-$212k/mo	Still below break-even; the monthly gap is large.
Base steady-flow year 2	$1.151m/mo	$288k/mo	$787k/mo	75%	$76k/mo	Near break-even; steady work starts to cover overhead.
Full utilization year 3	$1.621m/mo	$373k/mo	$940k/mo	77%	$308k/mo	Comfortable cushion; break-even risk drops sharply.

What breaks the break-even plan if projects slip or costs run hot?

Stress test

In the Year 2 steady month, the plan has about $101k of cushion. A 15% project delay, 10% higher fixed overhead, or a 5-point margin squeeze can erase that buffer fast.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change from the Year 2 steady month.	$1,050k	$101k cushion	The steady month is profitable, but the buffer is not large.
Revenue shortfall	Revenue drops 15% from delayed projects.	$1,050k	$72k gap	Slow close rates can turn the month back to a loss.
Fixed-cost increase	Fixed costs rise 10% from overhead and hiring.	$1,155k	$4k gap	Hiring ahead of booked work pushes break-even above plan.
Margin pressure	Variable expenses rise to 30% and cut contribution margin to 70%.	$1,125k	$26k cushion	Freight and underpriced agent usage eat margin quickly.
Combined pressure	Revenue drops 15%, fixed costs rise 10%, and contribution margin falls to 70%.	$1,238k	$260k gap	Slow closes plus hot costs create a deep operating loss.

Can the first fixed-cost move clear break-even?

Founder checklist

Don’t sign the warehouse, fleet, or marketing commitment until booked work can cover $86K a month, the team can carry the $58.9K fixed base, and cash stays above $240K through Month 28. The model breaks even by Month 20 and pays back in 59 months, so the early gap matters most.

1Break-even Pipeline≈$86K/mo

Verify your bid and quote flow can fill about $86K in monthly revenue before you add lease, fleet, or marketing spend.

2Booked Work≈$115K/mo

Check that signed and near-signed work is close to Year 2 average revenue of about $115K a month before adding fixed staff.

3Fixed Base≈$58.9K/mo

Make sure rent, insurance, fleet, software, utilities, admin, and salaries stay covered, because that base has to be paid before variable job costs.

4Margin Stack73% CM

Check clean agent supplies near 12%, hardware and controls near 8%, freight near 4.5%, and field consumables near 2.5% so each dollar still leaves about 73 cents for overhead.

5Crew Capacity2-4 FTE

Confirm certified engineer time and lead technician hiring line up with the install backlog, because Year 1 already needs 2 lead tech FTE and the team ramps fast after that.

6Cash Cushion$240K / M28

Keep at least the model’s $240K minimum cash through Month 28, because the business does not clear payback until Month 59.