Radon Mitigation Cost

Pennsylvania · 2026 pricing

Radon mitigation cost in Pennsylvania

A typical sub-slab system in an 1,800 sqft full-basement home at 6 pCi/L in Pennsylvania: $1,322–$3,896 · state cost factor 1.10×.

EPA radon zone summary: Zone 1 (highest — avg ≥ 4 pCi/L). Zone 1 in central + eastern PA — Pennsylvania has among the highest indoor radon levels in the US.

See NRPP/NRSB-certified mitigators in Pennsylvania →

Radon Mitigation Cost Calculator

6
1,800

Estimated cost

$1,113–$3,479

Typical: $2,087 · state factor 1.10×

Line items

  • System — Sub-slab depressurization (most common)$2,087
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Estimates are educational — actual quotes from local pros may differ based on site conditions, permits, and seasonal demand.

Why Pennsylvania runs above the US average

Radon mitigation pricing in Pennsylvania reflects three regional factors: licensed HVAC / specialty trade wages (BLS), EPA Zone density (Zone-1 states have mature mitigator markets and competitive pricing), and state-specific permitting / disclosure requirements. The 1.10× factor is calibrated from 2025 AARST + HomeAdvisor regional rate data.

Local note · Pennsylvania: Zone 1 in central + eastern PA — Pennsylvania has among the highest indoor radon levels in the US. Mandatory disclosure law on real-estate transfers. Strong PA DEP-certified mitigator market in Philly + Pittsburgh suburbs.

Local market in Pennsylvania

Pennsylvania is the highest-revenue radon mitigation state in the US — combination of high radon prevalence (40%+ of homes above EPA action level) + mandatory disclosure law + large housing stock. 200+ PA DEP-certified mitigators statewide; Philadelphia, Pittsburgh, Allentown, Harrisburg, and State College all have strong specialist density. Pricing is competitive — typical multi-quote spread 8-12%.

State licensing & permits in Pennsylvania

PA Department of Environmental Protection (DEP) maintains the most rigorous mitigator credential in the US under 25 Pa. Code Chapter 240. Mandatory state certification — separate from NRPP/NRSB but harmonized. Pennsylvania Radon Certification Act of 1987 governs the program. Municipal Mechanical + Electrical permits required ($75-$300).

Top metros in Pennsylvania

Strongest demand and certified-mitigator density: Philadelphia, Pittsburgh, Allentown, Harrisburg, Reading.

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