Top-rated radon detection and reduction specialists.

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Radon detection and reduction specialists in Ashippun

Avatar for Skeleton Key, LLC
Skeleton Key, LLC
1583 Holy Hill Lane
4.94(
152
)
Approved Pro
Skeleton Key, LLC
1583 Holy Hill Lane
4.94(
152
)
Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
9 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They were fast and efficient. I appreciated receiving a comprehensive report on our property as we were making final decisions"

Ciara K on June 2024

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They were fast and efficient. I appreciated receiving a comprehensive report on our property as we were making final decisions"

Ciara K on June 2024


Avatar for On the Level Inspection Service, LLC
On the Level Inspection Service, LLC
7119 W Jordan Court
5.00(
6
)
Approved Pro
On the Level Inspection Service, LLC
7119 W Jordan Court
5.00(
6
)
Approved Pro
5 years of experience
Free onsite estimate

Purchasing a home is one if not the biggest investments you will ever make, so knowing the condition of your property is very important. On the Level Inspection Service can provide you with that important condition knowledge you need to make a confident informed decision. Our inspectors are all trained, licensed, and insured. We follow the State of Wisconsin’s Standards of Practice, which will provide you with a detailed and accurate home inspection. We abide by a Code of Ethics, which puts your interests first and protects your rights as a consumer. We understand first-hand how stressful a real estate transaction can be. So, whether you’re buying or building a new home, selling the one you’re in, or purchasing an investment property, let Radiant Property Inspection give you the peace of mind you deserve to make the right choice for your family’s future.

"He gave me a full run down on everything about my home. Everything that was good and everything that needed to be fixed! He gave an inspection report as well, that had everything we talked about just in case I forgot and so that I can have documentation of it! Overall, it was a great experience and would highly recommend."

Beyjik B on June 2025

Purchasing a home is one if not the biggest investments you will ever make, so knowing the condition of your property is very important. On the Level Inspection Service can provide you with that important condition knowledge you need to make a confident informed decision. Our inspectors are all trained, licensed, and insured. We follow the State of Wisconsin’s Standards of Practice, which will provide you with a detailed and accurate home inspection. We abide by a Code of Ethics, which puts your interests first and protects your rights as a consumer. We understand first-hand how stressful a real estate transaction can be. So, whether you’re buying or building a new home, selling the one you’re in, or purchasing an investment property, let Radiant Property Inspection give you the peace of mind you deserve to make the right choice for your family’s future.

"He gave me a full run down on everything about my home. Everything that was good and everything that needed to be fixed! He gave an inspection report as well, that had everything we talked about just in case I forgot and so that I can have documentation of it! Overall, it was a great experience and would highly recommend."

Beyjik B on June 2025


Avatar for Lifetime Home Services
Lifetime Home Services
824 Wells Street
4.88(
119
)
Approved Pro
Lifetime Home Services
824 Wells Street
4.88(
119
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
232 local quotes requested

TRUSTED HOME SERVICES: #1 HOME IMPROVEMENT & REPAIR SOLUTIONS IN SOUTHEAST WISCONSIN. https://www.lifetimehomeservices.com

" Appreciate that Josh evaluated & communicated concerns regarding some "twists" in the mitigation. He did not rush & asked to include info from others [HOA, local electrician] so he could determine how best to proceed. He kept me apprised of additional charges & made certain I wanted to proceed before doing so. Efficient with install once we decided to proceed."

Carol W on May 2025

TRUSTED HOME SERVICES: #1 HOME IMPROVEMENT & REPAIR SOLUTIONS IN SOUTHEAST WISCONSIN. https://www.lifetimehomeservices.com

" Appreciate that Josh evaluated & communicated concerns regarding some "twists" in the mitigation. He did not rush & asked to include info from others [HOA, local electrician] so he could determine how best to proceed. He kept me apprised of additional charges & made certain I wanted to proceed before doing so. Efficient with install once we decided to proceed."

Carol W on May 2025


Due Diligence LLC
.
5.00(
72
)
Due Diligence LLC
.
5.00(
72
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

‘Due Diligence, llc’ is a veteran owned/operated professional home inspection company. While not all home inspectors bring the same level of experience to the table, our sole inspector, with over 25 yrs remodeling and 15 yrs forensic failure analysis, brings more than most. We pride ourselves in providing unbiased, thorough inspections and take the time necessary to insure our clients have a full understanding of any/all concerns identified.

"As a local Realtor, I've worked with many inspectors. But since working with Jeffrey, he is now my #1 go-to Inspector on my speed dial! I can confidently refer him to my Clients, knowing they will be getting the best of the best! While working with Jeffrey, I've been blown away by his attention to detail, how knowledgable he is & how he's able to explain even complex issues in layman's terms - for anyone to understand! His inspection report is the most organized home-owners guide, that I'm confident you will reference the whole time you live in your home! With the level of service you receive... you'll be shocked with how affordable his rates are! There are inspectors out there charging a lot more, and you get a lot less than what Jeffrey will do for you! Hire Jeffrey... you won't be disappointed!"

Megan M on December 2021

‘Due Diligence, llc’ is a veteran owned/operated professional home inspection company. While not all home inspectors bring the same level of experience to the table, our sole inspector, with over 25 yrs remodeling and 15 yrs forensic failure analysis, brings more than most. We pride ourselves in providing unbiased, thorough inspections and take the time necessary to insure our clients have a full understanding of any/all concerns identified.

"As a local Realtor, I've worked with many inspectors. But since working with Jeffrey, he is now my #1 go-to Inspector on my speed dial! I can confidently refer him to my Clients, knowing they will be getting the best of the best! While working with Jeffrey, I've been blown away by his attention to detail, how knowledgable he is & how he's able to explain even complex issues in layman's terms - for anyone to understand! His inspection report is the most organized home-owners guide, that I'm confident you will reference the whole time you live in your home! With the level of service you receive... you'll be shocked with how affordable his rates are! There are inspectors out there charging a lot more, and you get a lot less than what Jeffrey will do for you! Hire Jeffrey... you won't be disappointed!"

Megan M on December 2021


Essential Inspections llc
2222 N Kay Dr
No reviews
Essential Inspections llc
2222 N Kay Dr
No reviews
11 years of experience

Essential Inspections llc offers complete professional home and Radon inspections. Roofs, Attics, crawl spaces NO Problem! A complete inspection includes a visual examination of the building from top to bottom. The inspector evaluates and reports the condition of the structure, roof, foundation, drainage, plumbing, heating system, central air-conditioning system, visible insulation, walls, windows, and doors.

Essential Inspections llc offers complete professional home and Radon inspections. Roofs, Attics, crawl spaces NO Problem! A complete inspection includes a visual examination of the building from top to bottom. The inspector evaluates and reports the condition of the structure, roof, foundation, drainage, plumbing, heating system, central air-conditioning system, visible insulation, walls, windows, and doors.


SWAT Environmental of Madison
Unknown
4.67(
3
)
SWAT Environmental of Madison
Unknown
4.67(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

SWAT Environmental has installed more than 50,000 radon systems throughout the country. Our licensed and certified Radon Measurement Technicians through the National Radon Safety Board make up America’s largest radon abatement company. The experienced staff at SWAT Environmental leads the industry in removing radon from homes, schools, apartment buildings, condominiums, commercial and government buildings. SWAT Environmental is a trusted partner of some of the largest real estate firms in the country, and we lead the industry in quality and overall value. All of our technicians go through a rigorous training program that prepares them to make your home or office safe from the dangers of radon. When you have a problem with radon, you can trust the experienced professionals at SWAT Environmental.

SWAT Environmental has installed more than 50,000 radon systems throughout the country. Our licensed and certified Radon Measurement Technicians through the National Radon Safety Board make up America’s largest radon abatement company. The experienced staff at SWAT Environmental leads the industry in removing radon from homes, schools, apartment buildings, condominiums, commercial and government buildings. SWAT Environmental is a trusted partner of some of the largest real estate firms in the country, and we lead the industry in quality and overall value. All of our technicians go through a rigorous training program that prepares them to make your home or office safe from the dangers of radon. When you have a problem with radon, you can trust the experienced professionals at SWAT Environmental.


SWAT Radon Mitigation of Brookfield
Unknown
No reviews
SWAT Radon Mitigation of Brookfield
Unknown
No reviews
37 years of experience

SWAT Environmental has installed over 50,000 radon systems throughout the country. We are America’s largest radon abatement company, and we have more certified technicians on staff than any other competitor. The experienced staff at SWAT Environmental leads the industry in removing radon from homes, schools, apartment buildings, condominiums, commercial and government buildings. SWAT Environmental is a trusted partner of some of the largest real estate firms in the country, and we lead the industry in quality and overall value. All of our technicians go through a rigorous training program that prepares them to make your home or office safe from the dangers of radon. When you have a problem with radon, you can trust the experienced professionals at SWAT Environmental.

SWAT Environmental has installed over 50,000 radon systems throughout the country. We are America’s largest radon abatement company, and we have more certified technicians on staff than any other competitor. The experienced staff at SWAT Environmental leads the industry in removing radon from homes, schools, apartment buildings, condominiums, commercial and government buildings. SWAT Environmental is a trusted partner of some of the largest real estate firms in the country, and we lead the industry in quality and overall value. All of our technicians go through a rigorous training program that prepares them to make your home or office safe from the dangers of radon. When you have a problem with radon, you can trust the experienced professionals at SWAT Environmental.


Royal T Home Services, LLC
Unknown
1.00(
1
)
Royal T Home Services, LLC
Unknown
1.00(
1
)
Customers say: Super punctual
17 years of experience

A Marshfield-Based Home Inspection Company offering Home Inspections & Electronic Radon Testing, as well as Contractor Referrals and Home Maintenance Recommendations. Serving Marshfield and surrounding areas. Over 20 years of Residential home construction, additions & remodeling EXPERIENCE.

A Marshfield-Based Home Inspection Company offering Home Inspections & Electronic Radon Testing, as well as Contractor Referrals and Home Maintenance Recommendations. Serving Marshfield and surrounding areas. Over 20 years of Residential home construction, additions & remodeling EXPERIENCE.


Church Home Inspection Services,LLC.
212 N 71st St
5.00(
1
)
Church Home Inspection Services,LLC.
212 N 71st St
5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Church Home Inspection Services,LLC. has been in business since 1992. John V. Wantz,CFI-1,CMI,CLRA.is a Certified Master Home Inspector, Certfied Building Inspector, Certified Fire Inspector, Certified Lead Paint Risk Assessor, Certified Residential Weatherization Compliance Inspector and is a retired Steamfitter with over 30 years in the Heating and Air Conditioning field, both residential and commercial. He's the one who inspect's your home or business to be. The owner! Single family Home Inspections Start at Only $150.00 for a condo. $200.00 for a small home. Go to CHURCH before you buy; and you won't have to pray later!

Church Home Inspection Services,LLC. has been in business since 1992. John V. Wantz,CFI-1,CMI,CLRA.is a Certified Master Home Inspector, Certfied Building Inspector, Certified Fire Inspector, Certified Lead Paint Risk Assessor, Certified Residential Weatherization Compliance Inspector and is a retired Steamfitter with over 30 years in the Heating and Air Conditioning field, both residential and commercial. He's the one who inspect's your home or business to be. The owner! Single family Home Inspections Start at Only $150.00 for a condo. $200.00 for a small home. Go to CHURCH before you buy; and you won't have to pray later!


Scholze Home Inspections
600 Deerwood Street
No reviews
Scholze Home Inspections
600 Deerwood Street
No reviews
15 years of experience

flexible scheduling. on site electronic reports, multiple payment options, licensed and insured.

flexible scheduling. on site electronic reports, multiple payment options, licensed and insured.

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FAQs for radon detection and reduction projects in Ashippun, WI

You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional. 

Radon testing costs depend on whether you hire a professional radon inspector or DIY test. You can expect to pay $150 to $800 to hire a local radon inspector, and home-testing kits range in price from $15 to $250 from home improvement stores. However, it’s best to trust a professional inspector with this task to ensure accurate results. Plus, if you have radon in your home, your testing company can develop a mitigation protocol to keep you and your family safe from the dangerous gas, so it’s well worth the money to hire a professional.

If radon is present in your home, you can expect to pay around $1,000 for a radon mitigation system or between $780 and $1,250 in most cases. The exact price will depend on the severity of the radon leak, home size, and the protocol the radon specialist develops to remove radon from your home and keep it out. Your foundation type will also affect your radon mitigation system cost, as unfinished basements will cost about $4,600 to seal and ventilate, while crawl spaces without a foundation slab may need extra encapsulation, costing $1,500 to $15,000.

Yes, radon testing is absolutely necessary if you suspect the presence of this hazardous gas, and the Environmental Protection Agency (EPA) recommends testing for all homes in the country. Radon is a pervasive natural gas that can leak through your home’s foundation and seep into the living areas. Unfortunately, the gas is highly carcinogenic and is the second leading cause of lung cancer. Radon testing is crucial for keeping you and your family safe from harm, so hire a radon mitigation specialist to test your home if you suspect its presence in your home.

In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.

The Ashippun, WI 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.
Mature woman opening the window
Dec 2, 2024
Dec 2, 2024
You cannot see, smell, or taste radon, but it may still be a problem in your home. Before hiring a pro, find out how much radon testing costs using this guide.
Home radon mitigation fan system
Dec 1, 2024
Dec 1, 2024
Your home’s radon fan replacement cost is minimal in relation to its necessity. However, a few factors vary the project's price.
mother with kids hanging out on the couch
Nov 27, 2024
Nov 27, 2024
Can a homeowner install a radon mitigation system? While some parts of the project are fine for DIY, you should leave the meat of the task to a licensed professional.
Home radon mitigation fan system
Dec 4, 2024
Dec 4, 2024
You need to protect your home from radon, but what does a radon mitigation system look like? Check out this radon mitigation system diagram to learn how it works.
Radon mitigation fan attached to outdoor wall
Nov 21, 2024
Nov 21, 2024
How long does a radon fan last? Depending on the quality of the fan, usage, and maintenance, a radon fan can last five to ten years.
family hugging at home
Dec 12, 2024
Dec 12, 2024
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.
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