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*The Angi rating for Radon Detection And Reduction companies in Penobscot, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Penobscot, ME is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on April 23, 2026

Find Radon detection and reduction specialists in Penobscot

Avatar for Aqua-Max of Maine
Aqua-Max of Maine
4.4(
106
)
Radon Gas - AbatementRadon Gas - Testing

Serving Penobscot, ME and surrounding areas

In business since 1994

Free estimates

Warranties offered

"It was easy to work with this team to get our radon mitigation system installed. I was able to have several questions after the install answered immediately. I would hire them again."
Radon Mitigation Units
6- membrane process
whole house reverse osmosis system
Radon Mitigation Units
Water Radon Unit

+6

Recommended by96%of homeowners
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Aqua-Max of Maine
4.4(
105
)
Radon Gas - Abatement

Serving Penobscot, ME and surrounding areas

In business since 1994

Free estimates

Warranties offered

"This year, my shop was in the basement (I make turned wooden bowls) radon level inexplicably increased from the 2.5 - 4.0 level to 8.0 - 11.0 level. I decided I was not going to work down there unless I did something about radon abatement. The guys said I needed one port under my basement floor, but I opted for two --- one near the exit port of the system and one in the center of the house. I had crushed stone and a vapor barrier under the floor, but radon was still getting in. After the installation lasting 3 hours, twenty-seven hours after install, the level was 0.83. Now after 1 week the level is 0.48 I am ok with that. I have not seen the results from the lab yet, but my continuous meter has been a good indication of what is happening. I am concerned now about radon in my drinking water, but cannot comment on that yet. Dick P Alna, ME"
Response time1 day
Recommended by96%of homeowners
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Avatar for Rhino Radon Services
Rhino Radon Services
4.2(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Penobscot, ME and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"I have worked with many contractors,plumbers,electricians, etc. in my time owning two homes. On here in New England and the other in Pembroke Pines,FL. These gentlemen from rhino radon services were deffinelty personable and proffesional I felt like my home was in good hands with this company. After calling around and having a job scheduled with another mitigation company I was blown off and left with a short deadline. Luckily after speaking with Henri from rhino radon they were able to squeeze me right in your schedule the very next day even though they had two other jobs scheduled they showed up at 5pm and still completed the job to ensure I met my closing date, if your looking for a standout and accommodating radon company I would say look no farther then rhino radon. I was very pleased with the service I recieved. HIGHLY RECOMMENDED


"
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

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.

The Penobscot, ME homeowners’ guide to radon detection and reduction services

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