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Top-Rated Radon gas testers in Havre De Grace - Updated Nov 2026

County Large Home Inspections
4.5(
58
)
Radon Gas - Testing

Serving Havre De Grace, MD and surrounding areas

Approved

In business since 1999

Free estimates

Customers say: Quick response

"Wonderful service from start to finish! They repeated a radon test and got quite a different reading than the building inspector who apparently did not place the canisters appropriately I thank Ted for saving us from the radon risk. Highly recommend and very professional"
Response time10 mins
Recommended by90%of homeowners
Avatar for BK Enviromental, LLC
BK Enviromental, LLC
4.7(
19
)
Radon Gas - Testing

Serving Havre De Grace, MD and surrounding areas

Approved

In business since 1987

Free estimates

Credit card accepted

"Outstanding. Brian is thorough, honest, provides the highest rated service I have ever worked with. Doesn't over charge, I recommend to everyone who is looking to get testing done."
Response time1 day
Recommended by94%of homeowners
Avatar for Mid Atlantic
Mid Atlantic
4.9(
18
)
Radon Gas - Testing

Serving Havre De Grace, MD and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"Chris Barcikowski was on time, cordial, professional and spent a reasonable time checking our home issues. He provided us with recommendations on the action to take to solve the water standing inside the air ducts. He did testing for possible mold conditions and siad the results should be ready for us by this Friday, 9/12.."
Crawl Space
Crawl Space
Crawl Space
Crawl Space
Recommended by100%of homeowners
Avatar for Floodbusters Inc
Floodbusters Inc
4.4(
38
)
Radon Gas - Testing

Serving Havre De Grace, MD and surrounding areas

In business since 1988

Free estimates

Emergency services offered

"We suffered with flooding every year since the purchase of our house in 2008.  This year we had flooding when there was no rain.  We knew that it couldn't have been a sump pump failure.  We interviewed several companies, and were temped to go with the least expensive offer.  We contacted Flood Busters. George was our first point of contact.  He convinced us that the material used by the others could not compete with the Flood Busters System.  Flood Buster's cost  twice as much as the others.  We figured that if we could not negotiate them down to the level of the others, they must have been good, otherwise they risked losing our business.  We struggled about getting the job done but with ongoing communications from George and sincere reassurances from the owner Rick, we made the commitment.  We are so glad that we did.    George provided us with details of what needed to be done, the work schedule, warranties, and explained that their work would be guaranteed for the lifetime of the house.  We were impressed, but not totally sold.  In the back of our minds there was still some apprehension.  Then we met Josh who led the project.  He explained every step of the process; why and how their fool proof system worked.  We have never met  workers who were as skilled, knowledgeable  and as much in love with their work as these men.    Rick the owner came back to make sure everything was going as required and there wasn't a moment thereafter when we felt uncertain or questioned our judgment.  They modeled professionalism to the ultimate.  We were convinced that these guys were everything we had hoped them to be.  When the job was completed we were advised to leave the walls open for a while...let some wet weather test the system.  The following day we had an amazing storm that caused a massive power outage.  Our basement stayed dry as a bone...another rain...still dry.   Now we know why they could not compromise the quality of product and service.  It's true that you get what you pay for and, in this case, what we paid was well worth the value of the product and service.  These men were amazing, and we would trust them with our home and in our home any day.  Thank you so much Flood Busters!"
Finished Base Board System
Additional Photos
Additional Photos
Additional Photos
Recommended by81%of homeowners
Avatar for All States Air Duct Pro
All States Air Duct Pro
3.1(
236
)
Radon Gas - Testing

Serving Havre De Grace, MD and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Showed up, tried to up sell my wife on everything and used a shopvac to clean the ducts.....14 registers in 45 minutes? Waste of money they barely cleaned anything, and only worried about selling more services, when we said no the promptly finished up and left."
Before & After Air Duct Cleaning
Recommended by49%of homeowners
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FAQs for radon gas testing projects in Havre De Grace, MD

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Havre De Grace, MD homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.