Nobody in this market publishes prices, so here are ours: real installed prices from the last year of Valley jobs.
Call Now (520) 423-5900Tell us what's going on with the house. We reply to most messages the same day.
Every range below is from actual jobs; your fixed quote lands inside it or we'll explain exactly why before you commit to anything.
| Service | Typical Price | Notes |
|---|---|---|
| Professional 48-hour radon test | $165 | Credited toward mitigation if needed |
| Standard mitigation system, attic route | $1,400 – $2,600 | Most Phoenix homes; includes post-test |
| Mitigation system, exterior route | $1,400 – $2,200 | Painted to match stucco |
| Complex install (2nd suction point, large/segmented slab) | $2,400 – $3,200 | Quoted after pressure diagnostics |
| Crawl space sub-membrane system | $1,800 – $3,500 | Older/historic homes, e.g. Lehi, Coronado |
| Radon fan replacement | $325 – $575 | Fan included; most done in an hour |
| System diagnostic (any installer's system) | $95 | Waived against any repair |
| New construction rough-in (RRNC) | $400 – $850 per lot | Volume pricing on phases |
| Vapor intrusion mitigation, residential | $2,800 – $6,500 | Scope depends on verification requirements |
| Commercial radon / vapor systems | Fixed bid | From your test data or Phase II |
Slab layout. One continuous slab with good sub-slab communication needs one suction point. Additions, split levels and grade-beam-segmented slabs can need two, and the second point is most of the jump from $1,900 to $2,800.
Routing. Attic routes cost a bit more in labor than a straight exterior wall run but hide the pipe entirely, which some HOAs effectively require. Exterior runs need UV-rated pipe and paint here or they chalk and crack within a few summers.
Electrical. If there's an attic outlet or accessible circuit near the fan location, hookup is trivial. A new dedicated circuit adds electrician time, typically $150 to $300 inside our quoted range.
Soil. Caliche and tight native soils can strangle airflow, which means a bigger fan or a second point. This is exactly what the pressure field diagnostic is for; we measure before we quote the final number, so the surprise happens on our clock, not yours.
What doesn't move it: your test reading. A 20 pCi/L house and a 5 pCi/L house usually cost the same to fix. The number tells us urgency, not scope.
The EPA's health-risk numbers put radon behind about 21,000 US lung cancer deaths a year, more than drunk driving. Against that, a one-time $1,900 fix that also produces a document making your house easier to sell is one of the cheaper risk deletions in home ownership. The EPA's citizen guidance on radon risk is at epa.gov/radon if you want the source material rather than a contractor's word.
Most single-family installs land between $1,400 and $2,600. The Valley-wide average across our last hundred-plus jobs sits right around $1,900 installed, including the post-mitigation test.
Mostly scope games. A low teaser number often excludes the electrical hookup, the post-test, sealing work, or assumes an exterior run you didn't agree to. Compare what's included, not the first number.
For a handy owner on a simple slab, materials run $400 to $700 and the internet will cheer you on. The failure points are real though: undersized fans, suction points that miss the pressure field, discharge placed where exhaust re-enters, and on post-90s Phoenix homes, drilling a post-tension slab without a scan. We retest a lot of DIY systems that moved the number from 8 to 6 instead of 8 to 1.
Raise, slightly. A typical fan draws 40 to 90 watts continuously, which at Valley rates is roughly $5 to $12 a month. Sealing work sometimes claws a little back by reducing conditioned air loss.
Want the exact number for your house? Two minutes on the phone: (520) 423-5900. Or start with a $165 test and let the data decide.