Business Model · Construction

The Excavation Contractor

Financed iron that depreciates and burns diesel whether it runs or not, sold one bid at a time. Here is how an excavation contractor actually pencils: why the excavator, dozer, skid steer, and dump trucks are the moat and the dominant fixed cost, why the profit is billable machine hours, and why the swing on every job is what the dirt hides (rock, groundwater, an unmarked line) and what it costs to haul off.

15 min experienceInteractive economicsBuilt from BLS & Census data
Read the launch plan: every step from deciding to opening, free →
01

The Snapshot

Is this worth your attention?

$1M to $5M
Typical annual revenue
2-4 crews · site work & underground utilities
10% to 22%
Owner cash margin (SDE)
share of sales the owner keeps before their own pay
~$27/hr
Median operator wage
$56,160/yr (2024), CDL haul drivers cost more
$107k to $333k
Cost to open
down payments on financed iron and trucks, attachments, insurance; typical about $153k
Med-High
Day-to-day difficulty
dirt takeoffs, machine scheduling, weather & change orders
Low-Med
Absentee potential
systemized with a GM, estimator, and foremen

Cited sources Typical bands for this kind of business, compiled from the public sources listed under Sources and method; they are a synthesis, not figures copied from any one source. Estimates, not forecasts; a specific business varies with its location, lease, equipment and owner. Last reviewed 2026-10-26. smbnest is a self-assessment tool, not individualized advice.

A fit if you...

  • Can finance, run, and maintain heavy iron and keep it billable
  • Want an essential, infrastructure-tied trade with a real moat
  • Will chase commercial, developer, and bonded municipal pipelines
  • Can read a soils report and estimate cut, fill, and haul-off accurately

Probably not if you...

  • Want a low-capital, asset-light business
  • Dislike scheduling operators, machines, and lowboy moves between sites
  • Cannot carry equipment payments and depreciation when the iron sits
  • Have no appetite for dirt takeoffs, change orders, and the risk of a struck line
02

Step Inside the Layout

A live look at one tool inside

This is the actual 3D floor from the full model. Drag to explore it. Inside, you configure the space yourself and watch the economics move with every choice.

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Sources and method10 public sources, with the year and a link where the source gives one. The benchmark bands are smbnest's synthesis of these sources, not figures copied from them.

Sources & Method

Figures are compiled from the public sources below; the bands are a synthesis of them, not copies

How these numbers were built: operator wages come from the BLS OEWS (SOC 47-2073, Operating Engineers & Other Construction Equipment Operators, median $56,160/yr in May 2024); industry structure and per-firm revenue are anchored to the U.S. Census Bureau (NAICS 238910 Site Preparation Contractors) with a secondary industry anchor for equipment cost and margin benchmarks; financing terms (7(a) for acquisition and working capital, 504 for heavy equipment) come from the SBA; and survival signals come from Census and BLS business-dynamics data. Each crew runs about one job a week at a $14,000 average (HomeAdvisor prices residential basements at $5,000 to $15,000; site, utility and grading work runs larger), which puts sales per crew near the middle of the $400k to $900k band. The iron is financed: the monthly equipment line carries the payments on a used mid-size excavator, a compact excavator, a leased loader, a used dump truck and two pickups at Bay Street Lending’s terms, plus insurance (Insureon medians) and repairs. Estimating cost and the operator, fuel and haul-off stack are industry-typical estimates; the margin band is set against BizBuySell construction sale data for a staffed firm, and the opening kit is priced line by line from dealer, lender and insurer sources. Excavation runs at modest material cost (~27%) because the business sells dirt-moving machine hours, not materials; that line bundles fuel, aggregate, and haul-off rather than marked-up product. The margin sits in the lower construction band because the financed iron is both the moat and the dominant fixed cost, carrying its payment and depreciation whether it digs or sits. Figures are current as of 2024 to 2026.

Cost ratios and operational metrics are calibrated to the sources already cited in this file (BLS operator wages, Census site-preparation contractor data, and SBA equipment-financing guidance); no single source publishes a full operating-ratio breakdown for excavation contractors, so percentages are directional estimates built around the sourced revenue and margin figures. The margin band is checked against BizBuySell heavy construction sale data and the equipment line against Bay Street Lending financing terms.

Government data
U.S. Small Business Administration · 2026
504 loans: up to $5.5 million for machinery with at least 10 years of useful life and real estate, 10, 20 or 25 year terms
https://www.sba.gov/funding-programs/loans/504-loans
U.S. Bureau of Labor Statistics · 2024
OEWS: Operating Engineers & Other Construction Equipment Operators (SOC 47-2073), median $56,160/yr (~$27/hr)
https://www.bls.gov/oes/current/oes472073.htm
U.S. Census Bureau · 2022
County Business Patterns: Site Preparation Contractors (NAICS 238910)
https://www.census.gov/programs-surveys/cbp.html
U.S. Small Business Administration · 2026
7(a) & 504 loan programs & size standards (specialty trade contractors)
https://www.sba.gov/funding-programs/loans/7a-loans
U.S. Census Bureau (BDS) & BLS Business Employment Dynamics · 2024
New-business 5-year survival rates
https://www.census.gov/programs-surveys/bds.html
Industry
Specialty trade-contractor industry analysis (secondary) · 2024
Excavation & site-work firm revenue, equipment cost, and margin benchmarks
https://www.census.gov/programs-surveys/cbp.html
Market & valuation
BizBuySell · 2025
Construction business valuation benchmarks: median SDE 21.4% of revenue and a median 2.43× SDE sale multiple; heavy construction median sales about $1.97M, median earnings about $402k, average 2.71×, 2021 to 2025
https://www.bizbuysell.com/learning-center/valuation-benchmarks/building-construction/
Bay Street Lending · 2026
Excavator financing: 6 to 22% APR, 2 to 7 year terms, 0 to 10% down new and 10 to 25% used; used mid-size excavators $80k to $200k, compact $35k to $80k
https://www.baystreetlending.com/capital-solutions/equipment-financing/excavators
HomeAdvisor · 2025
Excavation cost guide: basements $5,000 to $15,000, foundation digs $1,500 to $10,000, machine and operator $100 to $250 an hour, haul-off $8 to $25 a cubic yard
https://www.homeadvisor.com/cost/landscape/excavate-land
Insureon · 2026
Excavation contractor insurance costs: median general liability $1,438/yr, equipment $1,209/yr, commercial auto $370/mo, workers’ comp $2,275/yr
https://www.insureon.com/construction-contracting-business-insurance/excavation/cost

This is just the surface

The full model is the complete, interactive deep-dive, and every business here is built to the same standard: a live economics simulator you tune to your own numbers, an interactive 3D walkthrough, a location scorecard, an owner-fit assessment, a buy-versus-build comparison, and the full breakdown of how it makes money and what quietly kills margin.

Monthly
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then $29 a month

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YearlyBest price
$199 a year

about $17 a month

The best price: a year to decide, open and run it.

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smbnest is a self-assessment tool. It does not give individualized financial, investment, legal or tax advice. Figures are estimates and benchmarks, not forecasts. Speak with a qualified financial adviser and a licensed attorney before you start, buy, finance or sign anything.