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Avatar for PureTech Home Services LLC

PureTech Home Services LLC

5.00(
7
)
Approved Pro

PureTech Home Services LLC

5.00(
7
)
Approved Pro
1 years of experience
Free onsite estimate

All team members are certified with the national body NRPP for radon testing and mitigation. Our team delivers personalized, professional service with a focus on health, safety, and customer satisfaction. Healthy homes start with PureTech Home Services—your trusted local expert for safer indoor environments. If you're curious what the average radon gas levels are in your local area, we've built a tool with the latest radon testing data plus health implications for the entire state of Wisconsin here: Radon Levels by Zip Code Search

"They were very timely and even stopped the day before their personal trip to give me the estimate and setup a time to start the work couldn't have asked for a better Pro/experience"

Janet S on October 2025

All team members are certified with the national body NRPP for radon testing and mitigation. Our team delivers personalized, professional service with a focus on health, safety, and customer satisfaction. Healthy homes start with PureTech Home Services—your trusted local expert for safer indoor environments. If you're curious what the average radon gas levels are in your local area, we've built a tool with the latest radon testing data plus health implications for the entire state of Wisconsin here: Radon Levels by Zip Code Search

"They were very timely and even stopped the day before their personal trip to give me the estimate and setup a time to start the work couldn't have asked for a better Pro/experience"

Janet S on October 2025


Avatar for Accredited Home Inspection Services LLC

Accredited Home Inspection Services LLC

4.97(
109
)

Accredited Home Inspection Services LLC

4.97(
109
)
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers

We recently received a Super Service Award from Angie's List, making it our SEVENTH YEAR IN A ROW! Our business is a locally owned/operated residential home inspection company; serving property buyers, sellers and owners in the Madison area and Southern Wisconsin since 2002. We offer objective, thorough inspections of homes, condos and multi units and provide same day reports with photos using Home Gauge software. I only do a maximum of two home inspections in one day so I do not have to worry about rushing to get to my next inspection! Each inspection includes a free 144 page Home Systems Guide with over 250 drawings and simple explanations describing the operation of structural, electrical and mechanical systems in your home. Member of ASHI, WAHI and RASCW Green Committee. Give us a call today at 608.233.5555 to schedule your inspection! Mailing address: P. O. Box 5055 Madison, WI 53705

"Very happy with job done"

Elizabeth L on January 2020

We recently received a Super Service Award from Angie's List, making it our SEVENTH YEAR IN A ROW! Our business is a locally owned/operated residential home inspection company; serving property buyers, sellers and owners in the Madison area and Southern Wisconsin since 2002. We offer objective, thorough inspections of homes, condos and multi units and provide same day reports with photos using Home Gauge software. I only do a maximum of two home inspections in one day so I do not have to worry about rushing to get to my next inspection! Each inspection includes a free 144 page Home Systems Guide with over 250 drawings and simple explanations describing the operation of structural, electrical and mechanical systems in your home. Member of ASHI, WAHI and RASCW Green Committee. Give us a call today at 608.233.5555 to schedule your inspection! Mailing address: P. O. Box 5055 Madison, WI 53705

"Very happy with job done"

Elizabeth L on January 2020


Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018

ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.

"as advertised"

Nancy C on July 2018


The company with home inspections, and has expanded into radon mitigation.


Avatar for US Water, LLC

US Water, LLC

5.00(
4
)

US Water, LLC

5.00(
4
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We offer water treatment, water testing, well pump services and well, septic, and home inspections. Affordable pricing. Friendly, experienced team. Our business has been proudly serving our customers since 2000. We KNOW Wisconsin water. We strive to provide the best water treatment services possible to central, eastern, western, and northern Wisconsin. We can help with water hardness/scaling and resolve problems from nitrates, coliform bacteria, arsenic, lead, tannin and much more. Our experience and knowledge about Wisconsin water is complemented by our use of the highest-quality water treatment products available. We have combined two generations of expertise into a dedicated, friendly, knowledgeable staff. Please contact us to set up a FREE water test and let us help you get safe, clean, great tasting water from every tap in your home. We are also proud to offer complete home inspections with our experienced state-licensed home inspector. We offer flexible scheduling and quick turnaround on our home inspections.

We offer water treatment, water testing, well pump services and well, septic, and home inspections. Affordable pricing. Friendly, experienced team. Our business has been proudly serving our customers since 2000. We KNOW Wisconsin water. We strive to provide the best water treatment services possible to central, eastern, western, and northern Wisconsin. We can help with water hardness/scaling and resolve problems from nitrates, coliform bacteria, arsenic, lead, tannin and much more. Our experience and knowledge about Wisconsin water is complemented by our use of the highest-quality water treatment products available. We have combined two generations of expertise into a dedicated, friendly, knowledgeable staff. Please contact us to set up a FREE water test and let us help you get safe, clean, great tasting water from every tap in your home. We are also proud to offer complete home inspections with our experienced state-licensed home inspector. We offer flexible scheduling and quick turnaround on our home inspections.


Avatar for SWAT Environmental of Milwaukee

SWAT Environmental of Milwaukee

5.00(
4
)

SWAT Environmental of Milwaukee

5.00(
4
)
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 National Radon Board service technicians 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 National Radon Board service technicians 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.


Radon Inc

4.67(
9
)

Radon Inc

4.67(
9
)
Customers say: Quick response
18 years of experience

Radon Inc is certified through EPA to provide Radon testing and Mitigation. The technician who arrives at your door will have completed all of the required training and testing and be certified to take care of your Radon problem. He will be able to answer your questions professionally and provide you with solutions based on years of experience. Additional phones - (608) 729-4992, (866) 808-9965.

Radon Inc is certified through EPA to provide Radon testing and Mitigation. The technician who arrives at your door will have completed all of the required training and testing and be certified to take care of your Radon problem. He will be able to answer your questions professionally and provide you with solutions based on years of experience. Additional phones - (608) 729-4992, (866) 808-9965.


Avatar for SWAT Environmental of Madison

SWAT Environmental of Madison

4.67(
3
)

SWAT Environmental of Madison

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.



Avatar for SWAT Radon Mitigation of Brookfield

SWAT Radon Mitigation of Brookfield

No reviews yet

SWAT Radon Mitigation of Brookfield

No reviews yet
38 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.

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Radon Detection and Reduction questions, answered by experts

Radon testing costs around $450 on average, but you could pay between $150 and $800 for testing, depending on a few factors. The size of your house is one of the most significant cost factors, as your radon professional will have to set up additional tests for homes with larger footprints. The type of test can also have an impact on the cost. Finally, some radon testing companies will include a recommended protocol for radon mitigation, while others might charge $50 to $100 extra.

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. 

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 professional indoor air quality inspection takes anywhere from one to three hours, depending on the size of your home and the number of necessary samples. After the test, the specialist will discuss the findings, but you won’t get a full written report for 2 to 10 days, though you can ask your pro to expedite the process, if needed. 

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

The North Freedom, WI homeowners’ guide to radon detection and reduction services

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