About Rapid City Radon

A Local Operation, Built for This Ground

Rapid City Radon does one thing: radon testing and mitigation for Rapid City and the Black Hills communities around it. Not roofing, not remodeling, not a franchise dispatching crews from three states away — radon, here, on the ground we live on.

That focus matters in this market more than most. The Black Hills sit on a granite core that carries natural uranium, and state test data has shown a majority of Pennington County radon tests coming back above the EPA action level — far above what the region's Zone 2 map label predicts. If you've just opened a test result with a number that made your stomach drop, take a breath: we've walked plenty of homeowners through that exact moment, and it is almost always more fixable than it feels. Here's the full story of why homes test high here →

What We Believe

Four commitments, on every job, no exceptions:

• Test honestly. If a free DANR test kit is the right first step, we'll tell you so. We recommend professional testing when a deadline needs a defensible number — not as a reflex.
• Fix to the standard. Every system is designed and built to the ANSI/AARST national radon standards — the same consensus codes the industry's certifying bodies require.
• Verify with a post-test. A pipe and a fan prove nothing by themselves. Every install ends with a post-mitigation verification test, and you keep the documentation — before and after, in writing.
• Give straight answers. Firm written pricing before work starts, and an honest opinion about whether you need us at all. We'd rather tell you the truth than close a sale.

South Dakota Doesn't License Radon Work. Demand a Standard Anyway.

Here's something most homeowners don't know: South Dakota has no state licensing or certification requirement for radon contractors. Anyone with a drill and a fan can legally sell you a system tomorrow. The recognized national certifications — NRPP and NRSB — are voluntary here.

So instead of trusting a logo, know what to demand from anyone you hire — including us:

• Work built to the ANSI/AARST standards — the national consensus codes for radon mitigation, covering pipe routing, fan placement, sealing, and labeling.
• Diagnostics before drilling — suction-point placement and sub-slab communication checked, not guessed.
• A visible system monitor — a U-tube manometer so you can see at a glance that the system is running.
• A post-mitigation verification test — and the written results. If a contractor won't retest, that tells you everything.
• A firm written price before the work starts.

That's the whole checklist. Any outfit that meets it is worth your call. We built this company to clear that bar on every single job.

Who We Serve

• Homeowners — from a first test kit question to a finished, verified system.
• Buyers, sellers, and real-estate agents — fast scheduling on closing timelines, defensible test results, and documentation that keeps deals moving. See radon & real estate.
• Property managers — testing and mitigation across rental units and multi-building portfolios, with records for every address.
• Builders — converting passive rough-in systems to active, and getting new construction verified before handover.

We work Rapid City and the I-90 corridor every day — Box Elder, Rapid Valley, Black Hawk, Summerset, Piedmont, and Sturgis. Find your town on our service areas page, or just call.