HVAC Cleaning Break-Even Analysis: $269K Monthly Revenue Target

Fixed costs $4.1K/mo Base monthly overhead

Contribution margin 78% After variable costs

Break-even revenue $5.3K/mo Revenue cover point

Break-even timing Month 9 First break-even

Break-even calculator

Use this to test how monthly revenue, variable expenses, and fixed costs shape break-even for HVAC cleaning.

Lean Base Full

Monthly revenue Revenue is the top line that creates room to cover direct costs and overhead. $ Slow month Busy month Variable expenses These are the direct costs that rise as jobs and service volume rise. $ Low direct costs High direct costs

Money available to cover fixed costs $40,500 $50,000 revenue - $9,500 variable expenses

Margin ratio

81%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead contribution margin has to cover. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which expenses are fixed, and which move with sales in an HVAC cleaning business?

Cost classification

Break-even in Month 9 only holds if $4,100 of monthly overhead stays fixed and percentage costs move with revenue. Treat payroll and marketing as semi-fixed, because they step up as staffing and lead volume rise.

Expense	Cost	Break-Even Treatment	Common Mistake
Office rent, utilities, insurance, software, hosting, professional services, vehicle insurance, and depreciation	Fixed	Use $4,100 per month: $1,500 rent, $250 utilities, $300 insurance, $150 software, $100 hosting, $400 professional services, $600 vehicle insurance, and $800 depreciation.	Adding one-time items like $60,000 vehicles or $25,000 equipment sets to monthly overhead.
Cleaning agents and supplies	Variable	Use 8.0% of revenue in the first year, falling to 6.0% by Year 5 as purchasing improves.	Modeling supplies as a flat monthly bill when usage rises with completed jobs.
Disposable PPE and equipment parts	Variable	Use 4.0% of revenue in the first year, falling to 3.0% by Year 5.	Ignoring parts wear from higher job volume.
Vehicle fuel and maintenance	Variable	Use 7.0% of revenue in the first year, falling to 5.0% by Year 5 as routing gets tighter.	Treating driving expense as fixed while service calls spread across more locations.
Sales commissions	Variable	Use 3.0% of revenue in the first year, falling to 2.5% by Year 5.	Forgetting commissions in contribution margin, which overstates break-even profit.
Payroll for owner, technicians, admin, and sales staff	Semi-fixed	Hold payroll steady within each staffing level, then step it up as full-time equivalent headcount rises by year.	Dividing payroll by each job as if labor scales perfectly with sales.
Annual marketing budget	Semi-fixed	Use $15,000 in Year 1 and step it up to $55,000 by Year 5 as acquisition volume grows.	Using customer acquisition cost alone and omitting the planned budget step-up.

How does break-even change across lean, base, and full HVAC cleaning setups?

Scenario table

Break-even rises as fixed payroll and overhead grow, but the margin also improves when recurring and commercial work take a bigger share. Year 1 is the tightest case; Year 3 and Year 5 gain more cushion from better crew use and mix.

Planning case only. These scenario figures are model assumptions, not a guarantee.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean owner-led route model	$21.5k	$4.7k	$21.0k	78.0%	$-4.2k	Still below break-even; dense residential routes must carry overhead.
Base small-crew model	$93.3k	$17.9k	$33.4k	80.8%	$42.0k	This clears break-even with room; crew utilization is the key watch item.
Full recurring and commercial model	$203.5k	$33.6k	$44.9k	83.5%	$125.0k	Recurring maintenance and commercial work create the widest cushion.

What breaks the HVAC cleaning break-even plan fastest?

Stress test

Base break-even is $26,891 a month on $20,975 of fixed costs and 22% variable expense. A 10% revenue miss, a 10% fixed-cost rise, or a small margin squeeze can turn a thin cushion into a $2,098 to $4,728 monthly gap.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$26,891	$0 cushion	Month 9 is break-even, so cash stays tight.
Revenue shortfall	Revenue lands 10% below plan.	$26,891	$2,098 gap	Booked jobs need to hold or the month turns negative.
Fixed-cost increase	Fixed monthly costs rise 10%.	$29,580	$2,689 gap	Overhead rises faster than sales can cover it.
Margin pressure	Variable expenses rise from 22.0% to 24.2%.	$27,671	$780 gap	Fuel spikes, supplies, and overtime eat the cushion.
Combined pressure	Revenue is 10% below plan, fixed costs rise 10%, and variable expenses rise to 24.2%.	$30,436	$4,728 gap	This mix burns cash fast unless bookings and route density improve.

Can you prove the work is there before you buy the vehicles and hire the crew?

Founder checklist

Don't commit to vehicles, equipment, or extra payroll until booked work can cover the $26.9K monthly break-even test. Use the Year 1 $150 CAC target, route density, and the Month 15 cash trough to decide if the launch is ready.

1Booked work$26.9K/mo

Verify booked jobs and clustered service routes can cover the monthly break-even test before you commit to two service vehicles.

2Fixed load$19.7K/mo

Keep the $122K startup spend separate from the year-one fixed load so you can see the real burn rate.

3Margin test78% CM

Check that supplies, PPE, fuel, and sales commissions still leave enough contribution margin to support break-even.

4Lead cost$150 CAC

Prove customer acquisition stays near the Year 1 target before you raise marketing spend.

5Staffing ramp3.5 FTE

Verify the owner, lead technician, technician, and half-time admin can be covered on time before the payroll load outruns demand.

6Cash cushion$779K M15

Keep enough cash to reach the Month 15 low point, and delay nonessential capex if leads or close rates soften.