Pressure Vessel Inspection Break-Even: About $105K Monthly Revenue

Fixed costs $66.7K/mo Monthly base load

Contribution margin 70% After variable load

Break-even revenue $95.3K/mo Revenue to cover

Break-even timing Month 30 Model break-even

Break-even calculator

Test whether monthly revenue can cover variable expenses and the fixed cost base.

Lean Base Full

Monthly revenue Revenue sets the pool that pays direct costs and overhead. $ Slow start Strong run Variable expenses These are direct costs like travel, transport, commissions, and field work that rise with inspections. $ Tight cost Heavy cost

Money available to cover fixed costs $162,500 $221,417 revenue - $58,917 variable expenses

Margin ratio

73%

Covers fixed costs

Yes

Fixed monthly costs This is the monthly overhead the margin has to cover, like rent, insurance, wages, software, and compliance. $ Lean base Heavy base

Break-even chart Revenue Total costs

Which pressure vessel inspection expenses are fixed, variable, semi-variable, or semi-fixed at break-even?

Cost classification

Break-even gets reliable when overhead, field activity, and capacity commitments sit in the right buckets. In the first operating year, fixed overhead runs about $29,850 per month before payroll, so misclassifying it can move the break-even month.

Expense	Cost	Break-Even Treatment	Common Mistake
Office rent and utilities	Fixed	Model at $8,500 per month from Month 1 through Month 60.	Tying rent to inspection job count.
Professional insurance premiums	Fixed	Model at $4,200 per month as required operating overhead.	Treating insurance as optional until revenue grows.
Software licensing and cloud infrastructure	Fixed	Model at $3,800 per month, including digital reporting support.	Leaving reporting systems out of overhead.
Vehicle fleet lease and maintenance	Semi-fixed	Model at $6,200 per month, then add capacity only when fleet needs step up.	Blending vehicle leases with trip fuel.
Travel and transportation	Variable	Model at 6.0% of first-year revenue; route density directly affects margin.	Using one flat travel budget for every job mix.
Sales commissions and incentives	Variable	Model at 4.0% of first-year revenue and match it to booked revenue.	Paying commissions before the related revenue is modeled.
NDT equipment maintenance and calibration	Variable	Model at 12.0% of first-year revenue because usage rises with billable inspection work.	Burying calibration inside fixed overhead.
Salaried inspectors and sales staff	Semi-fixed	Model first-year payroll at about $36,667 per month based on active full-time roles.	Ignoring idle capacity before utilization catches up.

How does break-even change across lean, base, and full operating cases for a pressure vessel inspection service?

Scenario table

Here’s the quick math: higher billable hours and denser industrial routes lift contribution faster than fixed payroll and overhead. The lean and base cases still miss break-even, while the full case starts to cover it.

Planning figures are model assumptions, not guarantees, and actual results will move with route mix, billable hours, and fixed staff load.

Scenario	Monthly Revenue	Variable Costs	Fixed Costs	CM Ratio	Operating Profit	Break-Even Signal
Lean Year 1 route-light case	$492K	$148K	$738K	70%	-$394K	Still short; fixed payroll and overhead outrun contribution.
Base Year 2 operating case	$1,227K	$347K	$1,042K	72%	-$162K	Closer, but the gap remains until utilization rises more.
Full Year 3 route-dense case	$2,214K	$589K	$1,321K	73%	$304K	Break-even turns positive when recurring industrial routes fill capacity.

What breaks the break-even plan for a pressure vessel inspection service?

Stress test

The plan gets fragile if jobs slow, travel and overtime climb, or fixed overhead steps up. At a $1,054K monthly break-even point, a 10% revenue drop or a 5-point margin hit can turn a thin cushion into a real gap.

Stress Case	Changed Assumption	Break-Even Revenue	Revenue Gap	Risk Signal
Current plan	No change.	$1,054K/month	$0 gap	Base case has no cushion.
Revenue shortfall	Revenue falls 10% to about $949K/month.	$1,054K/month	$74K gap	A small demand dip still leaves a material monthly hole.
Fixed-cost increase	Fixed overhead rises 10%.	$1,160K/month	$106K gap	Every added fixed dollar needs more high-margin work.
Margin pressure	Variable expense rate rises from 30% to 35%.	$1,135K/month	$81K gap	Longer travel, overtime, and rework eat margin fast.
Combined pressure	Revenue drops 10%, variable expense rises to 35%, and fixed overhead rises 10%.	$1,249K/month	$195K gap	This is where cash burn can reaccelerate.

What should the founder verify before locking in the lease, fleet, and early hires?

Founder checklist

Before you lock in the lease, fleet, and early hires, test whether the Year 1 plan can really hold through Month 30. The model needs a $754K cash cushion, so break-even readiness depends on demand, margin, and hiring discipline, not just the equipment build.

1Demand proofYear 1 $590K

Confirm early bookings can reach the Year 1 revenue path of $590K before you commit more fixed assets, because break-even only works if the pipeline fills fast enough.

2Fixed load$66.7K/mo

Check that the combined monthly fixed base is about $66.7K, including rent, insurance, software, vehicles, compliance, admin, and Year 1 payroll, so you know the revenue floor you must cover.

3Contribution70% CM

Use contribution margin (sales left after direct costs) at 70% in Year 1 to test whether each billed hour can carry the fixed load without chasing volume blindly.

4Tech rampMonth 13

Hold off on junior NDT hires until the two senior technicians stay busy enough, because junior staffing starts in Month 13 and unused labor will drag break-even out.

5Cash runway-$754K

Fund the $754K trough in Month 30, and treat the $675K capex build as separate from the cash needed to survive the ramp.

6Launch mix$2.85K CAC

At a $2,850 CAC and an $85K Year 1 marketing budget, you only buy about 30 customer wins, so keep oil and gas at 35% of Year 1 mix and lock reporting turnaround before scaling sales.