Buying or Selling? We'll Test on Your Timeline.

Real-Estate Radon Testing in Pennington County

Radon testing is a routine part of many home sales — and unlike most testing, it runs on a clock. A purchase agreement gives a limited inspection window, so the test has to be placed, run under proper conditions, and reported fast. We handle radon testing for buyers, sellers, and agents on that transaction timeline, with a clear, documented result everyone can rely on.

Why radon comes up in a home sale

More buyers and agents know to ask about radon than ever, and in higher-radon regions it's often a standard part of the inspection period. A high result doesn't have to kill a deal — but it does need to be known, because it's a genuine health issue and, increasingly, a disclosure expectation. Getting an accurate number lets the parties negotiate a mitigation system as part of the deal rather than discovering the problem after closing.

How a real-estate radon test is done right

• A continuous radon monitor is the preferred tool — it logs hourly readings, resists tampering, and produces a defensible, timestamped report, which matters when money and a contract are on the line.
• Closed-house conditions are required: windows and exterior doors kept shut (except normal use) for 12 hours before and during the test. On an occupied home being sold, that's something the parties need to respect for the result to be valid.
• Correct placement in the lowest lived-in level, away from drafts and exterior walls, so the reading reflects real exposure.
• A documented report delivered promptly so it fits inside the inspection window.

Sellers: test before you list

If you're selling, testing before you list takes the surprise out of the deal. If it's high, you can mitigate on your own schedule (and price) rather than under deadline pressure during negotiations — and a home that's already tested and mitigated is one less thing for a buyer to worry about.