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Unit pricing

San Antonio radon mitigation pricing per system

Radon Mitigation cost per system in San Antonio, Texas in 2026.

Low

$865

Average

$1,650

High

$2,400

San Antonio crews quote about $865 – $2,400 per system.

Multiply local unit rates by your real measurements.

What drives radon mitigation prices in San Antonio

Local labor, permitting and climate move San Antonio prices away from the national average.

Labor market

San Antonio is the most affordable large Texas market for licensed trades.

Permits

City permits required for roofing, structural and mechanical work.

Climate

Heat and expansive soils drive HVAC and foundation spend.

San Antonio unit pricing by material

Single-point sub-slab system$1,000 – $1,400
Sub-slab with sealing$1,400 – $1,850
Crawlspace membrane system$1,850 – $2,350
Multi-point system with monitoring$2,350 – $3,250

Ways to lower your San Antonio price

  • Test first with a $20 kit before commissioning a system.
  • Route the pipe on the least visible elevation to skip cosmetic upgrades.
  • Collect three written bids on an identical scope — spreads of 20–40% are normal.
  • Book in the off-season and stay flexible on the start date to save 5–15%.
  • Bundle nearby work into one mobilization so you only pay setup and travel once.
  • Ask what the contractor would change to cut 10% without hurting durability.

San Antonio questions

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