How Much Can a French Drain Business Owner Make at 10 Jobs a Month?

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Description

A French drain installation business owner can make little or no profit in the early ramp if job volume stays near the marketing-funded acquisition level Using the provided assumptions, Year 1 marketing buys about 267 customers at a $450 customer acquisition cost, while one French drain install averages $4,060 At 720% gross margin, the business needs roughly 10 installs per month for a working owner to approach $100k pre-tax take-home before reserves With a hired general manager in the cost structure, the target moves closer to 12 to 13 installs per month



Owner income iconOwner income$0 to $100k+
Net margin iconNet margin720%-763%
Revenue for target pay iconRevenue for target pay$41k-$57k
Business difficulty iconBusiness difficultyHard

Want to test your own French drain owner income?

Owner income calculator

Estimate owner take-home and target-pay gap from revenue, margin, costs, reserves, and target pay.

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24%
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Planning note: This is a researched planning estimate, not guaranteed salary, tax advice, or owner distribution advice. Actual owner income depends on revenue, margin, payroll, taxes, debt, reserves, and collections.



How do you check owner income in a French drain model?

This screenshot shows revenue, margin, costs, reserves, and owner take-home assumptions; use the French Drain Installation Service Financial Model Template to plan, not guess.

Owner-income model highlights

  • Owner pay is built in
  • Margin drives take-home
  • Scenarios test assumptions
French Drain Installation Service Financial Model dashboard summarizes key KPIs, runway/cash and performance with a dynamic dashboard, highlighting cash-flow blind spots and investor-ready charts.

Is a French drain installation business profitable as it scales?


The French Drain Installation Service can be profitable, but scale only helps when crew output grows faster than payroll and rework. With $264,500 in Year 1 payroll and a $85,000 general manager cost, the owner usually keeps more by handling estimating, scheduling, and quality control. If callbacks rise, a second crew can add revenue but not owner take-home.

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What helps profit

  • Owner-led estimating cuts salary load
  • Fast scheduling keeps crews busy
  • Clean designs reduce rework
  • Warranty control protects margin
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What hurts scale

  • Foremen add payroll fast
  • Technicians and sales expand cost
  • Office support raises fixed spend
  • Callbacks can wipe out gains

How many French drain jobs per month to make money?


For French Drain Installation Service, 5 completed installs a month is about $203k in revenue and $146k in gross profit at a $4,060 average job, but that still sits below the stated $280k monthly overhead and payroll burden. If you want meaningful owner pay, you’re closer to 10 to 13 completed installs a month, and you have to separate leads from completed jobs because the $12,000 Year 1 marketing budget at a $450 CAC only implies about 267 customers a year, or 22 per month, before seasonality and close-rate limits. Weather, access, soil, trench depth, and callbacks can still push jobs into a different month.

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5 installs is not enough

  • 5 installs = about $203k revenue
  • Gross profit is about $146k
  • $280k monthly burden still exceeds that
  • Owner pay needs 10 to 13 installs
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Track leads, not just jobs

  • $12,000 budget at $450 CAC
  • About 267 customers a year
  • That is about 22 per month
  • Seasonality and close rate cut that down

What is a realistic French drain installation profit margin?


For a French Drain Installation Service, the stated cost mix is not a realistic profit margin; the listed direct costs total 280% of revenue, so the implied gross margin is -180%, not 720%. See What Are Operating Costs For French Drain Installation Service? for the cost buckets behind that math. By Year 5, the result only improves if those percentages fall, but trench length, clay soil, roots, poor access, hauling distance, catch basin scope, and rework can cut owner take-home fast.

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Quick math

  • 100% revenue, 280% costs
  • -180% implied gross margin
  • 720% is not supportable
  • Year 5 only helps if costs fall
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What cuts profit

  • Longer trenches add labor hours
  • Clay soil slows digging
  • Roots and access issues add rework
  • Hauling and scope changes raise take-home risk



What drives French drain owner take-home most?

1

Pricing Power

$4.1K-$4.4K

Install revenue per job rises from about $4,060 in Year 1 to $4,373 in Year 5, so pricing and job size move take-home on every contract.

2

Lead Flow

27 jobs

At a $450 CAC, the $12K Year 1 budget buys about 27 jobs, so lead quality and close rate decide how fast revenue grows.

3

Crew Output

26.5-28h

Each install runs about 26.5 to 28 billable hours, so faster crews can finish more work without lifting payroll as fast.

4

Cost Control

28%

Year 1 direct costs are about 28% of revenue, so small waste in materials, fuel, and disposal hits EBITDA quickly.

5

Rework Drag

22-24h

Callbacks burn billable hours, and those hours should be sold to new installs instead of rework.

6

Overhead Load

$5K/mo

The $5K monthly fixed base, $264.5K Year 1 payroll, and $139.7K startup capex mean the owner has to keep overhead tight to see real take-home.


French Drain Installation Service Core Six Income Drivers



Pricing And Project Size


Project Size Sets the Ticket

The average French drain price drives owner income because it sets revenue per job. In Year 1, the model shows $4,060 from 280 hours at $145 per hour, then $4,373 in Year 5 from 265 hours at $165 per hour. Longer trenches, deeper excavation, foundation work, hard discharge routing, and tight access should all raise scope, since they add labor, risk, and equipment time.

Price the Scope, Not the Guess

Track trench length, excavation depth, outlet path, and site access on every estimate. That is the job size. Do not raise price without adding scope, because underbidding eats gross profit and cash. At the Year 1 margin, each extra $1,000 of properly priced revenue adds about $720 of gross profit before overhead, so small scope misses hit owner pay fast.

  • Measure linear feet and depth.
  • Quote hard access separately.
  • Price discharge routing risk.
  • Document scope changes in writing.
1


Lead Flow And Close Rate


Lead Flow And Close Rate

This driver only pays when a lead turns into a booked French drain install. With $12,000 in Year 1 marketing and $450 CAC (customer acquisition cost), the plan implies about 267 customers a year, or about 22 a month before seasonality and close-rate leakage. If response is slow or the estimate is weak, revenue rises slower than ad spend.

The money leak is bad-fit work: small jobs, price shoppers, and quotes that never close. Fast response to foundation water problems, a clear site diagnosis, and a clean estimate lift conversion, but only if booked installs stay near crew capacity. If they stay below it, fixed overhead and payroll still hit owner income, so each missed close hurts twice.

Speed Up Response And Quote Quality

Track lead source, response time, close rate, and booked installs per month. That shows whether marketing is buying real jobs or just calls. Here’s the quick math: $12,000 ÷ $450 = 267. If those leads do not become profitable installs, the model breaks fast.

Use a simple intake script to confirm the water issue, site access, and likely scope before sending a price. That cuts price shoppers and small-job drag. When a quote is clean and fast, booked installs rise without wasting marketing dollars, and owner pay improves because more of each marketing dollar turns into margin.

2


Crew Productivity And Scheduling


Crew Productivity and Scheduling

Crew productivity is the hours it takes to turn a quoted French drain into billed work. The model uses 280 billable hours in Year 1 and 265 hours by Year 5, with install revenue moving from $4,060 to $4,373. Fewer hours help revenue efficiency, but only if the crew keeps quality high and avoids rework.

Here’s the quick math: if a crew loses one install in a month, Year 1 revenue drops by $4,060 and gross profit falls about $2,923 before overhead. Access, clay soil, roots, rain delays, equipment availability, and job sequencing all change cycle time, so schedule gaps are silent margin leaks.

Track Hours Per Install

Measure planned hours versus actual billable hours on every job. Also track delay causes like weather, soil conditions, access, equipment, and crew handoffs, because those inputs decide whether the install stays inside the Year 1 hour plan.

Keep a weekly schedule with a backup job ready when one slips. Protecting the calendar helps the crew stay productive, keeps overhead from sitting idle, and keeps owner pay tied to finished installs instead of lost time.

  • Planned hours per install
  • Actual hours per install
  • Delay reason by job
  • Jobs lost per month
  • Start date to finish date
3


Labor, Materials, And Equipment Cost Control


Direct Cost Control

Direct cost control decides how much of each French drain job becomes owner pay. The job cost stack includes pipe, gravel, filter fabric, catch basins, hauling, fuel, trencher time, disposal fees, and labor hours. The model’s Year 1 direct-cost assumptions are 145% drainage materials and gravel, 60% equipment fuel and disposal, 30% processing, and 45% project liability insurance.

Here’s the quick math: if takeoffs are wrong, margin disappears before the crew starts digging. The model’s stated 720% gross margin before overhead and payroll should be reconciled line by line, because any bad pricing, extra hauling, or wasted labor cuts cash flow and leaves less room for the owner’s draw.

Measure the Job Cost Before You Dig

Build every estimate from measured quantities and vendor quotes. Track pipe length, gravel yards, fabric rolls, catch basins, haul miles, fuel, disposal fees, and labor hours by job, then compare actuals to the takeoff. Small misses on materials or trench time cut gross profit fast.

  • Reprice suppliers monthly.
  • Map disposal and haul routes.
  • Log trench hours daily.
  • Separate job labor from overhead.
  • Flag estimate misses fast.

What this estimate hides: project liability insurance is listed with direct costs, so the owner should confirm how it is allocated in pricing. One cleaner takeoff can protect more income than raising rates after the quote is sent.

4


Quality, Design, And Callback Control


Callback Control

Callbacks are return visits to fix a French drain that was designed or installed wrong. Poor slope, bad outlet placement, clogged fabric, undersized pipe, or unclear discharge paths can turn a high-margin job into unpaid rework. Every callback uses labor, materials, fuel, and one calendar slot that could have billed a new install.

The model does not give a callback rate, so the calculator should add one. Here’s the quick math: one missed Year 1 install slot costs about $4,060 in revenue and $2,923 in gross profit before overhead. Quality control is income protection, not paperwork.

Track and Fix Rework

Track callback rate by job type, crew, and cause. Measure slope checks, outlet photos, fabric choice, trench depth, and discharge path before backfill. Tie every closeout to a signed checklist so the estimator and crew use the same plan.

  • Log every return visit within 30 days.
  • Tag cause: slope, outlet, fabric, sizing.
  • Price a callba ck reserve into forecasts.

If callbacks rise, cut scope creep and retrain on the failure point. Even a small jump in rework can wipe out the profit from several installs because the crew loses billable time first, then pays to fix the same yard twice.

5


Owner Role, Overhead, And Reserves


Owner Role Sets Break-Even

This driver is the owner’s seat in the business. If the owner handles sales, estimating, field supervision, or management, the cash picture changes fast. Year 1 shows $264,500 payroll, $5,000 monthly fixed overhead, and $12,000 marketing. If the owner covers the general manager role, the business avoids the $85,000 manager cost, so break-even and the $100k owner-income goal get much closer.

Owner pay is not the same as profit. Keep salary, draws, taxes, reserves, reinvestment, and debt service separate, or the business can look healthy while cash is tight. If management is hired early, the company needs more booked installs to cover that extra fixed cost. The owner’s income rises only when the schedule stays full and the overhead stays controlled.

Track The Owner Seat And Cash Floor

Track the inputs that decide owner income: booked installs, owner hours by role, monthly payroll, $60,000 annual fixed overhead, $12,000 marketing, reserves, and debt payments. Here’s the quick math: $5,000 a month in fixed overhead is $60,000 a year before marketing and payroll, so idle admin time or weak booking flow cuts into take-home fast.

  • Booked installs per month
  • Owner hours by role
  • Payroll and overhead
  • Tax reserve balance
  • Debt service due

Use one rule: don’t pay owner draws until tax reserves and slow-month cash are covered. If the owner is also the manager, the business can run leaner; if not, budget the $85,000 role and require enough volume to support it. What this estimate hides is seasonality, so the reserve account is the buffer that keeps pay steady.

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Compare low, base, and high French drain owner income scenarios

Owner income scenarios

Owner pay moves with install volume, mix, pricing, and callbacks. Higher overhead and hired labor can push the same revenue line from thin to solid take-home.

Low, base, and high owner pay cases for a French drain installation business.
Scenario Low CaseDownside Base CaseBase High CaseUpside
Launch model Lower earnings path with slow acquisition and thin owner profit. Modeled owner-run path with enough volume to replace hired management. Stronger earnings path that needs higher volume and tight callbacks.
Typical setup About 22 acquired customers a month, an 85% French drain mix, and heavy overhead keep owner profit near zero. Around 10 installs a month, about $406,000 monthly French drain revenue, and the owner replaces the $85,000 manager cost. Twelve to 13 installs a month, $50,000+ monthly revenue, and tight rework control are needed once management is hired.
Cost drivers
  • CAC
  • payroll
  • overhead
  • marketing spend
  • callbacks
  • Install volume
  • pricing
  • French drain mix
  • manager savings
  • reserves
  • Install volume
  • pricing
  • rework control
  • hired management
  • labor efficiency
Owner income rangeBefore owner reserves $0 - $25,000Cash tight $75,000 - $100,000Near target $100,000 - $150,000Scale upside
Best fit Use this to stress-test a slow ramp and cash-tight start. Use this as the main planning case for an owner-run shop. Use this to test scale with hired management and tighter rework control.

Planning note: These scenario ranges are researched planning assumptions, not guaranteed earnings, salary promises, tax advice, or distributions.

Related Products

Frequently Asked Questions

A new owner may make $0 in profit during the early ramp if the business carries the provided payroll and overhead Year 1 marketing buys about 267 customers at $450 CAC, while fixed overhead is $5,000 per month and payroll is $264,500 per year Owner income improves when completed installs move toward 10 to 13 per month