Storm Shutter Installation Break-Even: $556K Monthly Revenue Target

Fixed costs $37.1K/mo Year 1 overhead base

Contribution margin 70.5% After variable costs

Break-even revenue $52.6K/mo Revenue needed monthly

Break-even timing Month 6 Model break point

Break-even calculator

Use this to test whether monthly revenue covers variable expenses and fixed costs.

Lean Base Full

Monthly revenue Top-line revenue sets the pool that covers variable and fixed costs. $ Low run rate High run rate Variable expenses Direct costs such as materials, travel, and sales support rise with revenue. $ Lean costs Heavy costs

Money available to cover fixed costs $46,100 $74,833 revenue - $28,733 variable expenses

Margin ratio

62%

Covers fixed costs

Yes

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

Break-even chart Revenue Total costs

Which storm shutter installation expenses are fixed, variable, or capacity-driven for break-even?

Cost classification

Break-even is only useful if each expense behaves the way the model says it does. For this service, the big risk is treating committed crew payroll like job-level labor when first-year salaries are already fixed overhead.

Expense	Cost	Break-Even Treatment	Common Mistake
Warehouse and Office Rent	Fixed	Include $4,500 per month in fixed overhead from Month 1 through Month 60.	Linking rent to job count instead of treating it as committed monthly space.
Business Liability Insurance	Fixed	Include $1,200 per month in fixed overhead for the full planning period.	Modeling insurance as a per-install charge when the policy is monthly.
CRM and Scheduling Software	Fixed	Include $350 per month in fixed overhead unless the subscription tier changes.	Scaling software automatically with revenue without a stated pricing trigger.
Raw Materials and Hardware	Variable	Apply as a revenue-linked charge, starting at 18.0% in the first year and falling to 16.0% by the fifth year.	Using a flat monthly budget and hiding margin pressure on installation jobs.
Waste Disposal and Site Prep	Variable	Apply as a revenue-linked charge, starting at 2.5% in the first year and falling to 1.5% by the fifth year.	Leaving site prep out of job margin because it feels small per project.
Vehicle Fuel and Travel Costs	Variable	Apply as a job-volume expense, modeled at 5.0% of revenue in the first year and 4.0% by the fifth year.	Treating fuel as fixed even though service routes rise with installs and calls.
Sales Commissions and Leads	Variable	Apply 4.0% of revenue across all five years as sales activity converts into booked work.	Double-counting lead spend against both this line and the marketing budget.
Installer Labor: Lead Installation Technician and Junior Installer	Semi-variable	Keep committed salaries in fixed overhead, then add overtime or subcontracting only when jobs exceed crew capacity.	Treating all crew payroll as variable when first-year salaries are already committed.

How does break-even shift from a lean crew to a full operating setup for this storm shutter installer?

Scenario table

Lean mode sits just above break-even, base mode adds a clear cushion, and full operations widen it further. The gap comes from revenue growing faster than fixed costs, while variable costs stay near 29% of sales.

Planning figures only; actual results will move with job mix, storm timing, and crew use.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean install-heavy setup	$556k	$164k	$392k	70.5%	$0	Close to break-even, so small misses can flip profit negative.
Base mixed-service case	$748k	$221k	$392k	70.5%	$136k	Positive cushion, but steady pipeline flow still matters.
Full-capacity growth case	$1,444k	$412k	$433k	71.5%	$599k	Strong cushion; the risk shifts to crew use and idle overhead.

What breaks the break-even plan if demand slows or costs jump?

Stress test

The base plan clears break-even with a $192k cushion, but the buffer is not wide. A 25% revenue drop, a 10% fixed-cost lift, or a 5-point margin squeeze can erase most of it; together they create a $96k gap.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$556k	$192k cushion	The plan clears break-even, but the cushion is modest.
Revenue shortfall	Year 1 revenue falls 25% below plan.	$556k	$5k cushion	Most of the cushion disappears with a slow season.
Fixed-cost increase	Fixed monthly costs rise 10%.	$612k	$136k cushion	Extra overhead cuts about $56k from the buffer.
Margin pressure	Variable costs rise 5 points to 34.5% of revenue.	$599k	$149k cushion	Supplier or rework pressure lifts the break-even bar.
Combined pressure	Revenue falls 25%, fixed costs rise 10%, and variable costs rise 5 points.	$657k	$96k gap	A weak season plus higher overhead turns the plan cash-negative.

What should a storm shutter founder verify before locking the lease, trucks, and first hires?

Founder checklist

The model hits break-even in Month 6, so do not commit to the lease, fleet, or first hires until demand, crew coverage, and cash can carry you there. Year 1 fixed load is about $37.1K a month, so weak pipeline or slow collections will push payback out.

1Demand Proof≥$556K/mo

Verify the seasonal pipeline can support this level before you add fixed costs, or the launch will outrun bookings.

2Fixed Load$37.1K/mo

Add rent, insurance, software, utilities, vehicle upkeep, and payroll, then delay lease, inventory, vehicle, and equipment spend if demand cannot cover it.

3Margin Check70.5% CM

Year 1 materials, waste, fuel, and sales costs take 29.5% of revenue, so pricing errors or rework hit break-even fast.

4Crew Coverage3 installers

Confirm the 1 lead installer and 2 junior installers are ready before you add payroll, because thin coverage pushes installs and cash back.

5Cash CushionMonth 2 / $727K

Hold enough working cash past the Month 2 low point, since the model's minimum cash need is $727K and capex lands early.

6Launch SetupBefore deposits

Before you quote or take deposits, verify supplier lead times, insurance and licensing, permit flow by jurisdiction, measurement steps, warranty handling, and service-line quote templates.