Stream Restoration Break-Even Analysis: About $58K Monthly Revenue

Fixed costs $20.2K/mo Overhead base

Contribution margin 70% After variable spend

Break-even revenue $28.8K/mo Monthly target

Break-even timing Month 3 Model break-even

Break-even calculator

Use this calculator to test monthly revenue against variable expenses and fixed monthly costs for a stream restoration firm.

Lean Base Full

Monthly revenue Revenue sets the margin left to cover fixed costs. $ Small month Big month Variable expenses Include field travel, subcontractors, materials, and proposal work that rise with revenue. $ Light direct Heavy direct

Money available to cover fixed costs $969,342 $1,318,833 revenue - $349,491 variable expenses

Margin ratio

73%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead and staffing base that contribution margin must cover. $ Lean overhead Heavy overhead

Break-even chart Revenue Total costs

Which stream restoration expenses are fixed, and which move with project volume?

Cost classification

Break-even gets reliable only when stable overhead is separated from job-specific field spend. Here’s the quick rule: fixed expenses set the monthly hurdle, while variable expenses reduce contribution margin on each project.

Expense	Cost	Break-Even Treatment	Common Mistake
Office Rent and Utilities	Fixed	Include $6,500/month in baseline overhead before testing required revenue.	Allocating rent by project and making break-even look lower in slow months.
Professional Insurance	Fixed	Include $3,200/month as required overhead across the planning range.	Treating insurance as job-specific when it stays due even without field work.
Software Licenses and Technology	Fixed	Include $2,800/month in the fixed overhead load.	Moving core software below gross margin and overstating project contribution.
Subcontractor Construction Services	Variable	Model as 12% of first-year revenue, deducted before contribution margin.	Treating subcontracted construction as pure overhead instead of project-linked spend.
Native Plant Materials and Supplies	Variable	Model as 8% of first-year revenue because it rises with restoration scope.	Using one flat monthly amount and missing margin pressure on larger jobs.
Project Travel and Field Expenses	Variable	Model as 6% of first-year revenue, tied to active field work and site visits.	Classing mobilization, permits, and field travel as pure overhead.
Equipment Maintenance and Calibration	Semi-variable	Start with the $1,200/month base, then add heavier use on active jobs.	Ignoring usage spikes when multiple monitoring or survey projects run at once.
Senior Project Manager	Semi-fixed	Add capacity in steps: 0.5 FTE in the first year, then 1.0 FTE from the second year.	Treating project management and seasonal labor as smooth monthly overhead.

How does break-even change across lean, base, and full operating cases for a stream restoration service?

Scenario table

Break-even is driven by a 30% variable load in lean and base cases, then a lower 26.5% load in the full case. The lean setup barely clears the line, while the full setup has room but only if the crew stays busy.

Planning figures are model assumptions, not guarantees, and actual break-even will shift with backlog, staffing, and mix.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean stream-restoration case	$60K	$18K	$40K	70%	$2K	Barely clears break-even, so any backlog slip hurts.
Base Year 1 operating case	$333K	$100K	$40K	70%	$193K	Comfortable cushion, but it still depends on steady project flow.
Full Year 3 scaled case	$1.32M	$350K	$78K	73.5%	$891K	Higher volume covers the bigger crew if the pipeline stays full.

What breaks the break-even plan for a stream restoration firm?

Stress test

Year 1 has a wide cushion, but it tightens fast if permits slip, field work gets delayed, or subcontractor and fuel costs rise. The main risk is cash timing: overhead keeps running before backlog catches up.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$58K/month	$275K cushion	Year 1 still has a large cushion.
Revenue shortfall	Monthly revenue falls 20% to about $267K.	$58K/month	$209K cushion	Still above break-even, but slack drops fast.
Fixed-cost pressure	Overhead rises 15% before backlog catches up.	$66K/month	$267K cushion	Higher overhead lifts the monthly hurdle.
Margin pressure	Direct costs rise from 30% to 35%.	$62K/month	$271K cushion	Field and subcontractor creep trims contribution.
Combined pressure	Revenue falls 20%, overhead rises 15%, and direct costs rise to 35%.	$71K/month	$196K cushion	Delay and cost creep can turn profit into cash strain.

Is the backlog big enough to hire, lease, and buy field gear before the first delays hit?

Founder checklist

Before you commit, test the signed-work pipeline against the firm’s $18.2K monthly fixed load, Year 1 variable cost mix, and Month 2 cash low point. If those three do not clear with room to spare, the break-even date is too fragile to trust.

1Bid pipeline$25.9K/mo

Verify enough signed and near-signed work to cover the implied break-even revenue before adding headcount or lease costs.

2Fixed load$18.2K/mo

Hold office rent, insurance, software, and other fixed spend against this monthly base so overhead does not outrun the project ramp.

3Unit margin70% CM

Check that Year 1 subcontractor, plant, travel, and business development costs still leave enough contribution margin to support the first hires.

4Staff rampMonth 13+

Hire the Environmental Engineer, Hydrologist, and admin support only when signed backlog can absorb the payroll step-up.

5Cash cushion$609K

Test the reserve against the Month 2 low point so capex, payroll, and field costs do not force a stop between awards and billings.

6Capex stage$403K

Stage equipment buys instead of front-loading all gear, and confirm each tool, vehicle, and drone spend supports booked work.