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Verified Reviews for Radon Detection And Reduction pros in Marshall, MI

*The Angi rating for Radon Detection And Reduction companies in Marshall, MI 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 Marshall, MI 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 August 20, 2026

Find Radon detection and reduction specialists in Marshall

Avatar for West Michigan Radon Removal LLC
West Michigan Radon Removal LLC
5.0(
47
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marshall, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Emergency services offered

"Contractor was so helpful with service the very next day. He thoroughly explained about radon, testing and mitigation. Most efficient contractor I have ever worked with in my 80 yrs. Followed up with us re warranty info. Highly recommend this contractor"
Response time4 hrs
Response rate98%
12 neighbors recently requested a quote
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Avatar for ALS Property Associates, Inc.
ALS Property Associates, Inc.
4.9(
30
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marshall, MI and surrounding areas

Approved

In business since 2017

Free estimates

Warranties offered

"Very good and check everything also a very professional report"
Radon Extraction Point
Hidden Radon Pipe
Radon Fan
Radon Reduction System
Exterior Radon Fan

+4

Response time1 day
5 neighbors recently requested a quote
Recommended by100%of homeowners
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Bench-Mark Home Inspections, LLC
5.0(
9
)
Radon Gas - Testing

Serving Marshall, MI and surrounding areas

Approved

Super Service Award Winner

In business since 2025

Free estimates

Warranties offered

"Great experience! Extremely fair pricing, very professional, and provided an extensive and thorough inspection report. I would definitely recommend Bench-Mark to anyone in the process of purchasing a home or starting a remodeling project."
Response time6 hrs
Response rate85%
78 neighbors recently requested a quote
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Double Check Inspect
3.8(
26
)
Radon Gas - Testing

Serving Marshall, MI and surrounding areas

In business since 2000

Free estimates

Credit card accepted

"I hired Double Check to do an inspection for a personal decision of "Repair or Replace". Justin came out, performed the inspection, took photographs and answered all my questions. He found some issues like a few shingles missing, popped nailheads and the like. We discussed the Repair or Replace decision. Very knowledgeable and easy to deal with. Highly recommended."
Response time3 hrs
Recommended by80%of homeowners
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Avatar for Midwest Spray Coatings A Perfect Crawlspace
Midwest Spray Coatings A Perfect Crawlspace
4.7(
193
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marshall, MI and surrounding areas

In business since 1999

Free estimates

Credit card accepted

"First, the company switched to a different name and when we contacted them they said the deal shouldn't have been up but they would still honor it. We told them we wanted an estimate done and they did it but I had to call the sales person to ask when we would receive it because I was supposed to get it the same day and two days later I had still not received it. My wife and I changed our mind and we aren't going to have this done at this time due to money issues. The person I dealt with over the phone was very personable and got back to me quick, I just think that the sales person should have responded to me quicker."
Exposed stone foundation
Foundation repair and insulation
Polyurea Coating
Ineffective fiberglass
Repairs to Foundation - Same Day

+16

Recommended by98%of homeowners
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Avatar for MichiganPro Home Inspections Saginaw-Bay City-Midland-BadAxe
MichiganPro Home Inspections Saginaw-Bay City-Midland-BadAxe
4.3(
7
)
Radon Gas - AbatementRadon Gas - Testing

Serving Marshall, MI and surrounding areas

In business since 2006

Emergency services offered

Credit card accepted

"Excellent. The inspector was very thorough, and identified numerous concerns that we hadn't noticed ourselves. Thank you!"
Recommended by100%of homeowners
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Showing 1-10 of 18
Radon Detection and Reduction questions, answered by experts

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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 Marshall, MI 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.

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