How Much Does a Radon System Cost to Install in 2026? By System Type
How Much Does a Radon System Cost to Install in 2026? By System Type Installing a radon system costs $800 to $2,500 in 2026 for the most common job — an active sub-slab depressurization system on a basement or slab foundation — and averages about $1,000 to $1,600 installed. Passive sealing alone runs $300 to $1,500, a crawlspace active soil depressurization (ASD) install runs $1,500 to $4,000, and a block-wall depressurization install hits $2,500 to $5,000. A complex multi-suction-point job on a severe-radon home can reach $8,000. Price your exact install by system type with our Radon Mitigation Cost Calculator(/construction/radon-mitigation-install-cost-calculator). I once priced three radon installs on the same suburban street inside a week: a poured-slab ranch, a 1968 hollow-block basement, and a 1990s addition over a vented crawlspace. Same town, same radon belt, same fan brand on the truck — yet the quotes came back $1,150, $3,400, and $2,900....
Radon Mitigation Cost in 2026: System Pricing & Averages by Foundation
Radon Mitigation Cost in 2026: System Pricing & Averages by Foundation Radon mitigation costs $300 to $8,000 in 2026, with the most common job — sub-slab depressurization on a basement or slab foundation — running $800 to $2,500 installed and averaging $1,000 to $1,600 nationally. Passive sealing alone costs $300 to $1,500, crawlspace active soil depressurization runs $1,500 to $4,000, and block-wall depressurization on hollow CMU walls hits $2,500 to $5,000. Radon testing before any work costs $15 to $400 depending on test type. Use our Radon Mitigation Cost Calculator(/construction/radon-mitigation-install-cost-calculator) to price your install by system, foundation, and post-test radon level. Radon is the one home-cost category where the cheapest quote is almost always the worst deal. Angi's 2026 radon data(https://www.angi.com/articles/radon-remediation-cost.htm) puts the average sub-slab install near $1,032, with most jobs falling between $787 and $1,280 — but the full spread runs from a $300 passive-sealing job to an $8,000...