Radon Testing

Radon Testing in Maryland

We provide certified radon testing using a electronic continuous monitoring device which runs inside a house for 48+ hours and provides instant results which include trending as well as an average reading. These devices are not only tamper-proof, but they allows us to measure the temperature, humidity, and atmospheric pressure along with the radon levels. Radon testing can be performed with or without a home inspection. An electronic report is delivered the same day that the test ends.

Radon is a naturally occurring radioactive gas that can cause lung cancer. You can’t see or smell radon. Because of the rock formations around Baltimore, the US Environmental Protection Agency (EPA) has determined that we are at a high risk for radon exposure.

Testing is the only way to know your level of exposure in a specific property. Radon is considered such a serious problem that some jurisdictions (like Montgomery County) require radon testing for home purchases. The EPA recommends routine testing even if you already have a mitigation system.

If you still have questions or would like to learn more, the US Environmental Protection Agency’s Radon Page is a good resource.

How Radon Enters a Home
How Radon Enters a Home
Radon Risk Map for Maryland
Radon Risk Map for Maryland


$150 ($180 without a home inspection) for a typical house. The runs for at least 48 hours by EPA protocol. Results arrive in a report via email the same day that the test ends.

Frequently Asked Questions

Is a radon test a required part of the home purchase process?
No, in most instances this is an optional item. However, most home buyers choose to have a test performed so that the typical $800-$1,200 cost of a mitigation system could be negotiated with the seller of the home. The only nearby jurisdiction we are aware of that requires testing is Montgomery County, Maryland.

Can’t I just take buy a radon kit at a home improvement store and do it on my own?
You can, but the test most likely won’t be accurate or hold up from a legal standpoint and will not likely be able to used in purchase negotiations. There are specific procedures and conditions needed for performing a true radon test. It is not worth the risk to save a few bucks by performing an amateur DIY test. These kits also have a lab analysis fee hidden in the fine print and may not be as cheap as you initially think.

Is there any reason to test for radon if I already have a mitigation system?
Absolutely. Routine testing can ensure that your system is installed properly and working to keep your family safe.

Doesn’t that liquid gauge on the white pipe in my basement show me that levels are low?
No, although the vacuum gauge on the PVC pipe indicates that the fan and system are operating, this does not correlate directly to radon levels. You should still have your home regularly tested.

What about radon mitigation companies that offer testing?
They are offering the testing because they want to sell their services. We are an independent third-party who holds nothing to gain by whatever the results say.