Top-rated radon gas testers.

Get matched with top radon gas testers in Crofton, MD

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Crofton

Avatar for H&G Restoration
H&G Restoration
5.0(
12
)

Serving Crofton, MD and surrounding areas

Angi Approved

In business since 2018

Emergency services offered

Small jobs welcome

"Outstanding service! I could not understand why my downstairs closet was extremely cold upon entry. During my first conversation with Phillip, he conveyed concern and dedication regarding identification and remediation of the unusually cold air. During initial visit, Phillip noted portions of closet were approximately 15 degrees colder than adjoining rooms. After conducting internal and external inspections of the nearby areas, he identified potential source of cold air. A couple days later with outside temperatures in the 20s, Phillip exhaustively sealed external areas of concern. A few days later, he came again to determine temperature differential within the closet. It was now much more comfortable with temperature only a few degrees below neighboring rooms! Throughout the entire process, Phillip was very friendly and knowledgeable."
Response time1 day
Response rate96%
Recommended by100%of homeowners
Avatar for Guardian Basement Waterproofing
Guardian Basement Waterproofing
4.7(
19
)

Serving Crofton, MD and surrounding areas

Angi Approved

In business since 1984

Free estimates

Warranties offered

"Avoid Guardian Basement – False Promises and Poor Customer Service Two years ago, I hired Guardian Basement to fix a water issue on the front wall of my basement. Joel came out, sold me on their system, and guaranteed I would have a dry basement. We also replaced two sump pumps and had the sump well dug deeper. The main selling point was their lifetime guarantee. Fast forward two years, and I have the exact same problem. Every time there is significant rain, water rushes through the same wall. I reached out to Guardian Basement, and Joel scheduled a time to check it out. His tone was completely different this time—defensive and dismissive. Within five minutes, he claimed, “Your system is clogged.” He made this assessment without any real inspection—just by looking at the cement floor and wall. Now, here’s the catch: If you look closely at their so-called lifetime warranty, clogs are not covered. So despite spending thousands of dollars, I’m back to square one. To make matters worse, Joel was incredibly condescending and unpleasant to deal with. After this experience, I looked into their licensing with the state of Maryland and found multiple complaints against them. I am now in the process of submitting my own complaint as well. I would never recommend Guardian Basement to anyone. Save your money and go with a company that truly knows what they are doing and stands behind their work. If I could give them a negative number of stars I would."
Additional Photos
Additional Photos
Additional Photos
Additional Photos
Response time1 day
12 neighbors recently requested a quote
Recommended by94%of homeowners
Avatar for Mighty Restoration LLC
Mighty Restoration LLC
4.6(
10
)

Serving Crofton, MD and surrounding areas

Angi Approved

In business since 2015

Free estimates

Emergency services offered

"We hired Mighty in 2020 for soot removal after a kitchen pot caused smoke to accumulate all over the apartment. Mighty did an excellent job. They arrived promptly to inspect the damage and did a thorough clean up. I highly recommend them."
Performing mold remediation in a residential area, utilizing proper PPE and specialized equipment to effectively remove mold and ensure a safe living environment.
Conducting smoke damage cleanup in a commercial space to restore and revitalize the environment.
Smoke Cleanup
Wipe Down
1 neighbors recently requested a quote
Recommended by90%of homeowners
Avatar for 911 Restoration by Germain Brothers LLC
911 Restoration by Germain Brothers LLC
New to Angi

Serving Crofton, MD and surrounding areas

Angi Approved

In business since 2016

Free estimates

Warranties offered

At 911 Restoration by Germain Brothers LLC, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of mold, water, fires and storms. Here’s what sets us apart:\n\nMold Remediation: Our certified experts assess and isolate mold contamination, ensuring thorough removal and preventing further spore spread. We identify the root cause, devise effective solutions, and prioritize your safety.\nWater Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs.\n\nComprehensive Services: Beyond mold and water remediation, we handle storm and fire damage repairs, as well as basement flood cleanup\nChoose 911 Restoration by Germain Brothers LLC for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

4 neighbors recently requested a quote
...
Showing 1-10 of 83
FAQs for radon gas testing projects in Crofton, 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 Crofton, MD homeowners’ guide to radon gas testings

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