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Avatar for A1 Radon Services LLC
A1 Radon Services LLC
5.0(
376
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenfield, MN and surrounding areas

Approved

In business since 2012

Free estimates

Warranties offered

"We were 100% pleased with the work done by A1 Radon Services. They were able to schedule us quickly, they arrived right on time, and the installation went perfectly. A short time later we tested again for radon and the number had gone from 9 to 1. We highly recommend. them."
radan fan and vent pipe running through attic space
Radon fan in garage rafters
Outdoor radon fan RP145
Outdoor radon mitigation system
outdoor radon mitigation system

+19

Response time7 hrs
2 neighbors recently requested a quote
Recommended by98%of homeowners
Avatar for Ron Prosch and Associates, Inc.
Ron Prosch and Associates, Inc.
4.8(
54
)
Radon Gas - Testing

Serving Greenfield, MN and surrounding areas

Approved

In business since 2009

Free estimates

Emergency services offered

"Ron's a nice guy, knows his business and does a good job. After completion of his work he cleans up the work area before leaving. He guarantees his work and runs a radon test to assure the radon level is acceptable. Thanks Ron and thank you Home Advisor for putting the two of us together."
Response time4 hrs
Response rate100%
1 neighbors recently requested a quote
Avatar for American Waterworks
American Waterworks
4.6(
170
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenfield, MN and surrounding areas

Approved

In business since 1989

Free estimates

Warranties offered

"The service was for Radon Mitigation in our home that had higher than acceptable Radon levels. The work was professionally done, and care was taken to protect carpeting etc during their work. The crew updated us home owners as they did their work and asked permissions for needed modifications to the house. I would recommend this company to anyone looking for quality workmanship, congenial communication and moderate pricing."
Another Sinking Floor
Dirt Crawlspace in Elk Mound, WI
Concrete stoop had sunk over 6 inches
Foundation Failure Signs
Increased Efficiency of Crawlspace in Elk Mound

+156

Response time3 hrs
645 neighbors recently requested a quote
Recommended by92%of homeowners
Avatar for Rapid Restoration, LLC
Rapid Restoration, LLC
4.5(
23
)
Radon Gas - Testing

Serving Greenfield, MN and surrounding areas

Approved

In business since 2008

Free estimates

Emergency services offered

"Rapid Restoration was excellent to work with on a water damage issue I had discovered. They worked with me on cleaning an affected surface as well as air quality testing so we could have exact information for the best health of the home. They were able to get started the same day and were professional and wonderful to work with from the first phone call through the completion of the job. Chad is very knowledgeable and his crew was great. It turned out that we did not need to take additional steps for remediation because the diagnostics came back without concerns. I appreciated that this team had the skill and abilities to provide information and work up possible plans from "best case to worst case scenario" then take the most fitting action. We found a perfect result for the home at much lower cost than could have been the case without such an honest exam. I had two other companies out to look and Rapid stood out in terms of timing, communication, assessment, and an efficient plan. I couldn't be happier and will definitely call them again and highly recommend them!"
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+14

Response time1 day
19 neighbors recently requested a quote
Recommended by95%of homeowners
Avatar for Aztec Asbestos Removal LLC
Aztec Asbestos Removal LLC
4.4(
8
)
Radon Gas - Testing

Serving Greenfield, MN and surrounding areas

Approved

Free estimates

Emergency services offered

Credit card accepted

Aztec Asbestos Removal LLC offers the removal of asbestos for commercial and residential properties. \n\nWe started in 2011 and have been providing excellent asbestos removal service ever since. We have withheld a rating of A+ through the Better Business Bureau reflecting our strict safety procedures and impeccable work ethic since 2013. We strive to offer excellent customer satisfaction by being very flexible and available, on top of making safety our #1 priority.\n\nWe are licensed in Minnesota and offer professional asbestos air sampling.

10 neighbors recently requested a quote
Recommended by85%of homeowners
Avatar for US Radon Solutions
US Radon Solutions
4.8(
65
)
Radon Gas - Abatement

Serving Greenfield, MN and surrounding areas

In business since 1982

Free estimates

"Very nice company to work with. Wayne came by within a day to do an estimate which was in line with others I checked. We had radon levels according to my AirThings Radon Detector of between 5-8 pCi/L; as we have a fairly large footprint and no drain tile they could hook into he suggested a larger fan unit just to be on the safe side. Estimate was $1400 with the larger fan and a sump seal. Wayne answered all of my questions clearly and responded to email when I had additional questions. I had to wait about 2 weeks on the install as they were fairly busy. Roger the co-owner handles the installs and he came along with an additional helper. They took about 4 hours on the job and did some nice work including some fancy snaking of the exhaust to get it above the roof line. Wayne they handles the final test and he came by about 2 weeks later to do the testing. He ran a 48 hour test that yielded an average reading of around 1.8 pCi/L - I had hoped for a bit better reading but it was well under the 4 recommended by EPA guidelines so I couldn't really complain. I noted that the AirThings detector I had gave a very similar average reading. The good news is that over time I'm seeing the average reading on my meter improving and I show a long term reading now of about 1 pCi/L and often have short term daily readings close to 1/2 of that. Overall very pleased with the work and results."
Nationally Certified Radon Mitigator
Response time1 day
Recommended by98%of homeowners
Avatar for Radone, LLC
Radone, LLC
4.9(
24
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenfield, MN and surrounding areas

In business since 2015

Free estimates

Warranties offered

"Sam was on time for the estimate appointment that was scheduled. He was very friendly and professional. He was not pushy in any form. On the day of the scheduled service appointment he showed up ready to work and was again very friendly and easy to communicate with. He got the work done in a very reasonable amount of time and his electrician showed up on time and was the same. We will have our after mitigation radon testing done and I will update my review then."
Response time4 hrs
Response rate86%
Recommended by100%of homeowners
Avatar for Radon Stoppers, LLC
Radon Stoppers, LLC
4.9(
69
)
Radon Gas - Abatement

Serving Greenfield, MN and surrounding areas

In business since 2010

Free estimates

Warranties offered

"My wife and I purchased a new house but we wanted to further reduce the average radon levels in our home. I am so thankful that we used Patrick and his company Radon Stoppers with our levels now under 1. For any radon needs, you will not be disappointed in Radon Stoppers work and attention to your home."
Response time1 day
Recommended by92%of homeowners
Avatar for Radon-B-Gone, LLC
Radon-B-Gone, LLC
4.9(
36
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenfield, MN and surrounding areas

In business since 2015

Free estimates

Credit card accepted

"Kale was professional, easy to work with, and knowledgeable about radon and mitigation systems. Kale tested our house for radon, explained the results, explained what needed to be done to bring our radon level down to a safer level, and then explained the whole installation process and how the system works. We are very happy with our radon level after installation of the mitigation system. Before installation, the level was an average of 6.5, and after installation, the level was an average of 0.8. Thank you, Kale, for making our home a lot safer to live in!!!"
Ortonville MN
Fan on the outside of the home
Suction pipe and custom sump cover
Custom sump pump cover
Exterior mounted fan

+17

Response time1 day
Recommended by96%of homeowners
Radon Resolutions, LLC
4.8(
38
)
Radon Gas - AbatementRadon Gas - Testing

Serving Greenfield, MN and surrounding areas

In business since 2006

Free estimates

Credit card accepted

"Very precise in first measuring the level of Radon present, and although well within suggested limits, per my insistence, turned our Passive system into an Active system by installing a fan in the attic to ensure any Radon would be exhausted into the air despite our overly long piping. Working was done quickly and monitoring was explained by Dan and he also provided a pre-paid test kit to check the level of Radon after the fan and monitor were installed."
Response time6 hrs
Recommended by100%of homeowners
Showing 1-10 of 26
Radon Detection and Reduction questions, 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.

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 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.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

The Greenfield, MN 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.