Commercial Kitchen Suppression Break-Even: $48K Monthly Revenue

Fixed costs $32.5K/mo Year 1 base

Contribution margin 70% After variable costs

Break-even revenue $46.4K/mo Monthly target

Break-even timing Month 19 Model ramp point

Break-even calculator

Use this calculator to test how monthly revenue, variable expenses, and fixed monthly costs drive break-even for a kitchen suppression installer.

Lean Base Full

Monthly revenue Revenue is the monthly sales base that pays direct costs and overhead. $ Slow month Busy month Variable expenses These are direct costs that rise with each job, including hardware, chemicals, fuel, and commissions. $ Lean costs Heavy costs

Money available to cover fixed costs $47,789 $67,417 revenue - $19,628 variable expenses

Margin ratio

71%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the business must cover before profit starts. $ Low overhead High overhead

Break-even chart Revenue Total costs

Which expenses are fixed and which move with sales for a commercial kitchen suppression system installer?

Cost classification

Break-even is reliable only when recurring overhead stays separate from job-driven spend. If materials, commissions, or travel are buried in fixed overhead, the model can overstate contribution margin and make Month 19 break-even look safer than it is.

Expense	Cost	Break-Even Treatment	Common Mistake
Warehouse and Office Rent	Fixed	Include $4,500 per month in fixed overhead for the current facility.	Treating rent as job-driven and understating required monthly revenue.
General Liability Insurance	Fixed	Include $1,200 per month in fixed overhead across the planning range.	Leaving insurance out until cash reporting, which understates break-even.
CRM and Scheduling Software	Fixed	Include $350 per month as recurring operating overhead.	Spreading software over jobs and inflating variable cost per install.
Field Technician Staffing	Semi-fixed	Add payroll in capacity steps as technicians are added in later years.	Putting all field labor into fixed overhead and missing capacity breakpoints.
Equipment and Hardware Components	Variable	Deduct 18.0% of revenue in the first year, falling to 16.0% by the mature year.	Treating hardware as overhead and overstating contribution margin.
Chemical Suppression Agents	Variable	Deduct 4.0% of revenue in the first year, falling to 3.2% by the mature year.	Burying agent usage in fixed supplies and missing job-level margin pressure.
Fuel and Vehicle Maintenance	Variable	Deduct 5.0% of revenue in the first year, falling to 4.2% by the mature year.	Classifying permit-heavy travel as fixed and overstating contribution.
Sales Commissions	Variable	Deduct 3.0% of revenue each year before calculating contribution margin.	Counting commissions after break-even, which makes sales growth look too profitable.

How does break-even change across lean, base, and full staffing for a commercial kitchen suppression contractor?

Scenario table

Break-even shifts as staffing and overhead rise faster than revenue in the launch phase. In this model, Month 19 is the break-even point, so the lean case is the cash test, the base case is the hurdle, and the full case builds cushion.

Planning assumptions only; actual break-even moves with job mix, labor use, and how fast fixed overhead ramps.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Owner-led launch	$31.5K	$9.5K	$32.5K	70.0%	$-10K	Still below break-even; cash stays tight.
Steady operations	$67.4K	$19.6K	$39.5K	70.9%	$8K	Near break-even; Month 19 is the model's break-even point.
Growth-ready capacity	$103.4K	$29.2K	$45.5K	71.8%	$29K	Above break-even; this case adds room for slower months.

What breaks the break-even plan if installs slow or margins slip?

Stress test

The base plan has only a modest cushion, so a 15% revenue dip, a 10% overhead jump, or a 5-point contribution margin cut can wipe it out. Watch fewer installs, subcontractor inflation, permit delays, rework, warranty callbacks, and slower collections.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	Year 2 monthly revenue holds near $674K with about 70.9% contribution margin and about $413K fixed overhead.	about $583K/month	about $65K cushion	Still close enough to slip if collections slow.
Revenue shortfall	Monthly revenue drops 15% to about $573K while margin stays near 70.9%.	about $583K/month	about $7K gap	A small miss pushes the month under water.
Fixed-cost pressure	Fixed overhead rises 10% to about $455K.	about $642K/month	about $23K cushion	Higher rent, labor, or insurance cuts the buffer fast.
Margin pressure	Contribution margin drops 5 points to about 65.9%.	about $627K/month	about $31K cushion	Subcontractor inflation or rework erodes the cushion.
Combined pressure	Revenue falls 15%, fixed overhead rises 10%, and margin drops to about 65.9%.	about $690K/month	about $78K gap	This mix is enough to break the month.

What should you verify before signing the lease and scaling crews for a commercial kitchen suppression install business?

Founder checklist

Don’t commit until the pipeline can carry $482K of monthly billable work, $7.75K of fixed overhead, and a $562K cash cushion. The model still does not break even until Month 19, and payback takes 47 months.

1Demand Proof$482K/mo

Verify the booked pipeline can support at least $482K of monthly billable work before materials and travel, because the model does not reach break-even until Month 19.

2Fixed Load$7.75K/mo

Confirm the first-month overhead stays at the listed fixed costs, including rent, insurance, software, utilities, fleet insurance, and licensing, so break-even does not move up fast.

3Margin Mix70% CM

Check that Year 1 service mix leaves about 70% contribution after equipment, chemicals, fuel, and sales commissions, because that margin funds payroll and the cash trough.

4Crew Ramp4.5 FTE

Make sure the opening team can cover installs, maintenance, and emergency repair at 4.5 full-time equivalent staff before you add more lead flow or commit to more jobs.

5Cash Buffer$562K

Hold at least $562K in cash, because the model hits its low point in Month 21 and does not pay back for 47 months, so slow collections can hurt fast.

6Launch CAC$15K / $450

Test whether $15K of Year 1 marketing can hold customer acquisition cost near $450 and keep supplier terms tight on hardware and suppression agents before you scale installs.