Fireplace And Chimney Cleaning Break-Even Analysis: Month 8 Target

Fixed costs $22.0K/mo Base overhead + payroll

Contribution margin 51% After variable costs

Break-even revenue $43.3K/mo Monthly target

Break-even timing Month 8 Model break-even

Break-even calculator

Test monthly revenue, variable expenses, and fixed costs against break-even for a fireplace and chimney cleaning service.

Lean Base Full

Monthly revenue Revenue sets the pool left after direct costs to cover overhead. $ Slow month Peak month Variable expenses These are direct costs like supplies, vehicle use, and marketing. $ Light direct cost Heavy direct cost

Money available to cover fixed costs $23,368 $46,000 revenue - $22,632 variable expenses

Margin ratio

51%

Covers fixed costs

$2,612 short

Fixed monthly costs This is the monthly overhead the business has to cover. $ Lean overhead Higher overhead

Break-even chart Revenue Total costs

Which fireplace and chimney cleaning expenses are fixed, and which move with sales?

Cost classification

Break-even is only useful if monthly overhead stays separate from job-linked spending. In the first year, fixed overhead sets the sales floor, while percentage-based items reduce contribution on each booked job.

Expense	Cost	Break-Even Treatment	Common Mistake
Office rent	Fixed	Use $2,500 per month as recurring overhead from Month 1 through Month 60.	Spreading rent across jobs and hiding true monthly burn.
Business insurance	Fixed	Use $1,200 per month before calculating job-level contribution.	Treating insurance like it rises with each cleaning.
Base payroll	Fixed	Include recurring salaries for core staff within monthly overhead.	Modeling all payroll as variable labor per job.
Technician hires	Semi-fixed	Add payroll in steps as capacity rises, such as chimney technicians increasing from 1.0 FTE in the first year to 2.0 FTE in the second year.	Smoothing hiring evenly and missing the cash hit when a full role is added.
Equipment and supplies	Variable	Model as 12.0% of revenue in the first year because supplies rise with completed jobs.	Parking brushes, liners, and consumables in fixed overhead.
Vehicle operating costs	Variable	Model as 8.0% of revenue in the first year to reflect fuel, routes, and service trips.	Using one flat vehicle number even as bookings grow.
Marketing and advertising	Variable	Model as 18.0% of revenue when using a revenue-linked acquisition assumption.	Double-counting marketing as both the $48,000 first-year budget and an 18.0% variable expense.
Committed marketing budget	Semi-fixed	Use the $48,000 first-year budget as a monthly commitment if campaigns are prepaid or contracted.	Calling committed ad spend variable when it cannot be cut quickly.

How does break-even change as this fireplace and chimney cleaning business moves from lean launch to a full route team?

Scenario table

Lean stays closest to cash control, while base and full lift break-even because fixed payroll and marketing rise faster than the margin cushion. The higher the staffed route, the more revenue you need just to hold even.

These are planning assumptions, not guarantees; actual break-even will move with job mix, pricing, and close rates.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean launch case	$51,142	$25,162	$25,980	50.8%	$0	Tightest cash setup; any demand miss hurts fast.
Base paid-demand case	$59,016	$29,036	$29,980	50.8%	$0	Paid demand covers overhead, but cushion is still thin.
Full route-team case	$71,892	$31,992	$39,900	55.5%	$0	Higher margin helps, but staffing raises the revenue bar.

What breaks the break-even plan for fireplace and chimney cleaning?

Stress test

This plan only works if bookings stay near the base case and route costs do not creep up. A 10% revenue drop or a 5-point margin hit each creates about a $3,000 monthly gap, and both together widen that to about $8,600.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$59,000	$0 cushion	Covers overhead, but the cushion is thin.
Revenue shortfall	Monthly revenue falls 10% to about $53,100.	$59,000	$3,000 gap	Fewer bookings create a quick monthly shortfall.
Fixed-cost increase	Fixed costs rise 10% to about $32,978 a month.	$64,900	$3,000 gap	Higher overhead pushes break-even past the plan.
Margin pressure	Contribution margin falls 5 points from 50.8% to 45.8%.	$65,500	$3,000 gap	Longer drive times, fuel, or overtime eat the cushion.
Combined pressure	Revenue falls 10%, fixed costs rise 10%, and margin falls 5 points.	$72,000	$8,600 gap	Weak demand and cost drift together break the plan fast.

What should you verify before scaling this fireplace and chimney cleaning service?

Founder checklist

Before you buy more vehicles or add crews, prove the service area can fill the $51.1K to $59.0K monthly revenue band and the booking flow can use the $48,000 Year 1 marketing budget without weak demand. If that math does not hold, break-even will slip.

1Demand Zone$48K budget

Verify the mapped service area and booking flow can turn the Year 1 marketing spend into enough booked jobs to reach the $51.1K to $59.0K monthly revenue band.

2Fixed Load$5.98K/mo

Verify the office, insurance, software, utilities, professional services, supplies, communications, and maintenance stay near the $5.98K monthly run rate, because fixed-cost drift pushes break-even out.

3Margin Mix50.8% CM

Verify the mix of $24.99 safety subscriptions, $185 cleanings, $125 inspections, and $275 minor repairs still leaves about 50.8% contribution margin, the cash left after variable costs, once equipment, vehicle, training, marketing, payment, and support costs are counted.

4Crew Ramp4.25 FTE

Verify the owner, lead technician, one chimney technician, half-time customer service, half-time marketing, and quarter-time bookkeeping plan can cover route density before you add anyone else.

5Safety Stack$177.5K capex

Verify ladder setup, safety gear, certification, and insurance are in place before field work, because launch capex already totals $177,500.

6Cash Cushion$703K / Month 7

Verify reserves can carry the Month 7 cash low to the Month 8 break-even date, because the model still needs 25 months to pay back launch spend.