How much does a Radon Mitigation Service cost to buy?

A typical Radon Mitigation Service sells for 2x to 5.5x seller's discretionary earnings. With estimated SDE of $182K, expect to pay roughly $363K to $998K before adjustments for assets, debt, growth, and local market quality.

How much does it cost to start a Radon Mitigation Service?

Startup costs range from $25K to $160K depending on location, equipment, and scale.

Service

Radon Mitigation Service

Q: What are the profit margins for a Radon Mitigation Service?

The average profit margin for a Radon Mitigation Service is around 33%. Costs include radon testing devices, fans, PVC, coring tools, ladders, vans, technician labor, insurance, certifications, post-install tests, and referral marketing to inspectors and real-estate agents.

Invisible gas, very visible home-sale deadline

Bottom line

Worth studying, but do not buy without strong local proof.

Radon mitigation companies test buildings and install vent-pipe and fan systems that pull radon from beneath homes before it enters living space. Demand often spikes during real-estate transactions because failed radon tests can delay closings, making this an unglamorous compliance niche with urgent buyers.

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Acquisition score

Strong

Avg Revenue

$550K

Profit Margin

33%

Acquisition Multiple

2x - 5.5x

Startup Cost

$25K - $160K

How It Works

Operators receive leads from inspectors, realtors, homeowners, builders, and property managers, perform testing or review test results, design a mitigation system, core through slabs or walls, install PVC vent piping and fans, retest, and provide documentation for the buyer, seller, or lender.

Revenue Range

Low End

$160K

Typical

$550K

High End

$1.6M

Pros

+Real-estate deadlines create urgency
+Jobs are standardized enough for repeatable crews
+Health and compliance angle supports premium pricing
+Referral relationships with inspectors and agents compound

Cons

-Certification rules vary by state
-Lead flow can depend on housing turnover
-Poor installs create liability and callback risk

Best For

Home-service operators, inspectors, HVAC-adjacent crews, or contractors comfortable with certification and clean documentation

Operating Costs

Costs include radon testing devices, fans, PVC, coring tools, ladders, vans, technician labor, insurance, certifications, post-install tests, and referral marketing to inspectors and real-estate agents.

SBA Financing Estimator

Adjust the deal — see if it cash flows after debt service

$-4160/mo

after debt service

Deal price — $1.9M

Range: $830K (2×) to $3.6M (5.5×+)

Down payment — 15% ($281K)

SBA minimum equity injection is 10% for change-of-ownership

Interest rate — 8.00%

Current prime-based SBA rates: 7.5–10.5%

Loan term — 10 years (120 mo)

Standard SBA 7(a): 10 years for business acquisition

Down payment

$281K

15% equity injection

Loan amount

$1.6M

85% SBA-financed

Monthly payment

$19K/mo

$725K total interest

Monthly profit

$15K/mo

at 33% margin

Monthly cash flow after debt service

$-4160/mo

Margin does not cover debt service at these terms. Lower the deal price, increase the down payment, or extend the loan term.

Estimates only. Excludes owner compensation, capex, working capital draws, and taxes. Margin assumes average occupancy and volume. Actual SBA terms vary by lender and borrower profile.