What Radon Testing & Mitigation Cost in Dallas, TX
What radon work actually costs around Dallas in 2026. These are honest local ranges, not quotes — foundation type, house size, routing and scheduling urgency set the real number. The phone consultation costs nothing and usually answers half the questions by itself.
| Service | Typical price |
|---|---|
| Radon test, 48-hour continuous monitor | $150 – $250 |
| Transaction-priority test | $175 – $275 |
| Slab home mitigation system, installed | $1,200 – $2,800 |
| Crawl space / pier-and-beam system | $1,800 – $3,500 |
| Hybrid system (slab + crawl) | $2,200 – $4,000 |
| Post-mitigation verification test | Included with our installs |
| New-construction radon-ready rough-in | $350 – $800 |
| Passive stack activation (fan + gauge) | $600 – $900 |
| Commercial / multifamily testing | Scoped per building |
Why mitigation costs less than people fear
Radon arrives in most people's lives attached to the words 'radioactive' and 'lung cancer,' so the price expectation runs to remediation-crew numbers. The reality: a standard system is a day's skilled install — pipe, fan, sealing and verification — priced like a mid-range plumbing job, not an environmental cleanup. In a real-estate negotiation this matters enormously: an elevated test is a $1,500-ish repair credit conversation, not a walk-away event, and the side that knows that first negotiates better.
Reading mitigation bids
Compare on the parts that decide whether the system works: diagnostic sub-slab communication testing before drilling, sealing of slab openings included, fan sized from the diagnostics rather than one-model-fits-all, a manometer on the pipe, and a post-install verification test in the price with a written performance guarantee. A bid missing those is a fan bolted to a pipe, and the difference shows up on the retest.
The buy-once logic of testing
A radon number is durable: absent foundation work, a major remodel or new construction next door, a properly tested home's radon character does not wander much — which is why the EPA's guidance is to retest every couple of years or after changes, not monthly. One calibrated test buys years of either peace of mind or a solved problem. Per year of certainty, it is the cheapest number in home ownership.