Radon Mitigation Service
EPA-mandated, real estate transaction-driven, and almost nobody does it
Radon is the second-leading cause of lung cancer in the US — a naturally occurring radioactive gas that seeps into basements and low floors. The EPA requires testing in most real estate transactions, and when levels exceed 4 pCi/L (approximately 1 in 15 homes nationwide), mitigation is mandatory before closing. That creates a guaranteed, recurring demand source tied directly to real estate sales volume. A residential radon mitigation system installation runs $800–$2,500 and takes 4–6 hours. At 3–5 installs per day, a single technician generates $150K–$350K in annual revenue. Startup costs are among the lowest in the trades — under $20K for a fully equipped operation.
Avg Revenue
$280K
Profit Margin
30%
Acquisition Multiple
1.5x - 2.5x
Startup Cost
$15K - $50K
Difficulty
2/5
How It Works
The core product is a sub-slab depressurization (SSD) system: a PVC pipe runs from below the concrete slab through the foundation to a fan that vents radon outside. Material cost per install: $150–$400. Labor: 4–6 hours. Price to homeowner: $800–$2,500. That's a 60–70% gross margin per job. Revenue is generated two ways: (1) installation jobs referred by real estate agents, home inspectors, and title companies at transaction close, and (2) testing services ($100–$250 per test) that can be done by any certified technician. The referral network is the moat — once you're embedded with the top 10 real estate agents in a market, a steady flow of mandatory jobs is nearly guaranteed.
Revenue Range
Pros
- +Mandatory EPA requirement tied to real estate — not discretionary spending
- +Lowest startup cost in the trades — $15K–$50K gets you fully operational
- +High gross margin per job (60–70%)
- +Referral network is sticky once established with real estate agents and inspectors
- +Virtually no national franchise competition in most local markets
Cons
- -Revenue tied to real estate transaction volume — slows in housing downturns
- -State certification required in most states (training is short, typically 1–2 days)
- -Seasonal slowdown in cold climates when real estate activity drops
- -Limited ticket size — average job is $1,500, not $10,000
Best For
Skilled tradespeople looking for a low-capital entry into a mandated services niche; investors with real estate agent relationships in high-radon markets (Midwest, Mid-Atlantic)
Operating Costs
Main costs: materials per job ($150–$400), van/truck, state certification maintenance, and marketing. COGS runs ~35% of revenue including materials and direct labor. After overhead, net margins of 25–35% are achievable at modest scale.
Where to Buy
Find environmental and remediation businesses for sale
Franchise network for radon mitigation — turnkey dealer programs available
National Radon Proficiency Program — certification directory and industry resource
Quick Facts
- Category
- service
- Difficulty
- 2/5
- Acquisition Price
- $420K - $700K
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Radon Mitigation Service
$280K/yr • 30% margins • 1.5x–2.5x multiple
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