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Top-Rated Radon detection and reduction specialists in Marietta - Updated Nov 2026

Avatar for AmeriSure Home Inspection, LLC
AmeriSure Home Inspection, LLC
4.6(
31
)
Radon Gas - Testing

Serving Marietta, PA and surrounding areas

Approved

In business since 2016

Free estimates

Credit card accepted

"Tom was wonderful and extremely thorough! He explained everything as he went along and I left feeling like I really knew the ins and outs of the property. He was extremely personable and very professional. He called to schedule and follow up prior to the date of the inspection. I felt confident in him during the entire process. I would recommend him to anyone."
Home Inspection
Home Inspection
Home Inspection
Home Inspection
Response time6 hrs
31 neighbors recently requested a quote
Recommended by74%of homeowners
Avatar for Radon Protection Services of Gettysburg, Inc.
Radon Protection Services of Gettysburg, Inc.
4.5(
17
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marietta, PA and surrounding areas

In business since 1988

Free estimates

Small jobs welcome

"I received 3 quotes from 3 different company's who are certified in radon and Mason Dixon was the highest by $170.00 plus they have a gravel clause in their contract while others did not which could cause the price to go up another $500."
Response time1 day
Recommended by100%of homeowners
Avatar for Radon Protection Services of Gettysburg
Radon Protection Services of Gettysburg
4.6(
22
)
Radon Gas - Abatement

Serving Marietta, PA and surrounding areas

In business since 1988

Free estimates

Small jobs welcome

"This team was professional, as well as friendly and knowledgeableâ ¦gave us up front scenariosâ ¦ we didnâ t have to pay them before OR after the job was done (once the testing is done and we are SATISFIED, we are to pay the bill â ¦which was a little higher than the first company we contacted but the first company wanted payment up front and said nothing about OUR satisfaction). We were appreciative of the explanation of what was done and what WE needed to do to make sure the system was working properly. We got clear instructions on testing after installation. So far, so good! We are pleased."
Response time11 hrs
Recommended by100%of homeowners
Avatar for Insulation Geniuses
Insulation Geniuses
4.6(
9
)
Radon Gas - Testing

Serving Marietta, PA and surrounding areas

In business since 2016

Free estimates

Emergency services offered

"It was a pleasure to work with this company. Everyone was very efficient and professional. All aspects of the job were clearly stated, and all questions answered. You need them for your next job!!"
Another Happy Homeowner!
Aeroshield NASA Grade Insulation
Energy Star Attic Seal Process
Gable Attic Fan - SOLAR POWERED!  Runs for FREE and 25 Year Warranty!
AeroShield Installed over Blown-In gives you the right protection forever with it's LIFETIME Warranty!

+37

Recommended by88%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

The Marietta, PA homeowners’ guide to radon detection and reduction services

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