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Avatar for ALO Radon

ALO Radon

5.00(
25
)
Approved Pro

ALO Radon

5.00(
25
)
Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
5 years of experience

With over 7 years of experience the testing and mitigation industry, ALO Radon is your industry leader in the Spearfish area and all the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. As a family owned & operated business, you can trust we will treat your project as we would treat our own. Our customer satisfaction guarantee will assure you that we will not leave your property until you are completely satisfied with our work. Give us a call today, we look forward to working with you!

"What a relief to find Anthony and ALO. After a mail-in radon test revealed extremely high levels of radon, we called The Big Guys in town. Do not get me started? .luckily I called ALO next. Their price was MUCH more reasonable and they scheduled me 5 days out! Anthony was great at keeping us informed re: times. He also made it clear that he would start with a basic mitigation package, and if the radon levels were still too high, they would then start adding more expensive fans/additional suction points, etc. There was an up front price list for all these options. Thankfully after 2 days, the work was done and tests soon revealed nearly non-existent radon! I highly recommend these guys."

Jason B on January 2025

With over 7 years of experience the testing and mitigation industry, ALO Radon is your industry leader in the Spearfish area and all the surrounding areas. We pride ourselves on our extreme professionalism and attention to detail. As a family owned & operated business, you can trust we will treat your project as we would treat our own. Our customer satisfaction guarantee will assure you that we will not leave your property until you are completely satisfied with our work. Give us a call today, we look forward to working with you!

"What a relief to find Anthony and ALO. After a mail-in radon test revealed extremely high levels of radon, we called The Big Guys in town. Do not get me started? .luckily I called ALO next. Their price was MUCH more reasonable and they scheduled me 5 days out! Anthony was great at keeping us informed re: times. He also made it clear that he would start with a basic mitigation package, and if the radon levels were still too high, they would then start adding more expensive fans/additional suction points, etc. There was an up front price list for all these options. Thankfully after 2 days, the work was done and tests soon revealed nearly non-existent radon! I highly recommend these guys."

Jason B on January 2025


Avatar for Blackburn Foundation Repair, LLC

Blackburn Foundation Repair, LLC

4.64(
21
)
Approved Pro

Blackburn Foundation Repair, LLC

4.64(
21
)
Approved Pro
Customers say: Quality work
33 years of experience
Free onsite estimate

Blackburn Basement Systems has been providing the best in basement waterproofing, crawl space and foundation repair, concrete leveling, and radon mitigation in South Dakota, and Eastern Wy, since 1992. We offer a variety of solutions for the multitude of issues that result from below grade construction throughout South Dakota. Thousands of homes, businesses and government agencies have been serviced by our trained professional installers throughout South Dakota, and Eastern Wy. We are proud to say we have 500 reviews with 4.8 stars!

"Went through them for wall braces which the job was horrible. Then the final price was 3000 more then what my quote was. I do not recommend them for a first choice. "

Matt W on November 2025

Blackburn Basement Systems has been providing the best in basement waterproofing, crawl space and foundation repair, concrete leveling, and radon mitigation in South Dakota, and Eastern Wy, since 1992. We offer a variety of solutions for the multitude of issues that result from below grade construction throughout South Dakota. Thousands of homes, businesses and government agencies have been serviced by our trained professional installers throughout South Dakota, and Eastern Wy. We are proud to say we have 500 reviews with 4.8 stars!

"Went through them for wall braces which the job was horrible. Then the final price was 3000 more then what my quote was. I do not recommend them for a first choice. "

Matt W on November 2025


Avatar for Rapid Radon Removal

Rapid Radon Removal

5.00(
2
)
Approved Pro

Rapid Radon Removal

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
12 years of experience

We're a locally owned and operated company with over 10 years of industry experience. We value honesty and integrity and stand behind our work. We specialize in a variety of residential and commercial testing services. We've earned a solid reputation for testing and mitigation. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"Jeff is very knowledgeable and thorough about radon removal. He is highly qualified in radon mitigation and has extensive experience with construction. Very personable, considerate, and responsive. I highly recommend him and will do so for all my friends."

Erica H on May 2021

We're a locally owned and operated company with over 10 years of industry experience. We value honesty and integrity and stand behind our work. We specialize in a variety of residential and commercial testing services. We've earned a solid reputation for testing and mitigation. We pride ourselves on the quality of our work as well as our commitment to outstanding results. We look forward to building long-term relationships with our clients and guarantee your satisfaction!

"Jeff is very knowledgeable and thorough about radon removal. He is highly qualified in radon mitigation and has extensive experience with construction. Very personable, considerate, and responsive. I highly recommend him and will do so for all my friends."

Erica H on May 2021


Avatar for Black Hills Radon

Black Hills Radon

New on AngiNew on Angi
Approved Pro

Black Hills Radon

New on AngiNew on Angi
Approved Pro
3 years of experience
Free onsite estimate

Black Hills Radon is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

Black Hills Radon is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.


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


Breen & Associates, LLC

4.62(
13
)

Breen & Associates, LLC

4.62(
13
)
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

Breen & Associates is a Professional Home Inspection Service Company. Including, but not limited to, Radon Testing, Water Tests, Infrared Thermal Imaging, Pest Inspection and all things involving a Full Service General Home Inspection. Over 85 years of family experience in the home inspection business. Over 13 years experience in residential home construction.

Breen & Associates is a Professional Home Inspection Service Company. Including, but not limited to, Radon Testing, Water Tests, Infrared Thermal Imaging, Pest Inspection and all things involving a Full Service General Home Inspection. Over 85 years of family experience in the home inspection business. Over 13 years experience in residential home construction.


SHIELD RADON MITIGATION

No reviews yet

SHIELD RADON MITIGATION

No reviews yet
2 years of experience

We offer Radon testing and foundation based radon mitigation. We are dedicated to providing homeowners peace of mind through reliable radon mitigation services. Our mission is to create healthy living environments with clear communication and exceptional customer service. We also offer free radon testing. We don't just end after installation. We come back for future additional testing to ensure we have lowered the radon levels in your home. Jamie Steele, owner and operator, has been in the radon mitigation industry for 5+ years and has desire to help home owners and renters live in a healthy environment. Jamie has also been in the construction industry his entire adult life and knows the ins and outs of how to apply a system in your home with the least amount of changes possible.

We offer Radon testing and foundation based radon mitigation. We are dedicated to providing homeowners peace of mind through reliable radon mitigation services. Our mission is to create healthy living environments with clear communication and exceptional customer service. We also offer free radon testing. We don't just end after installation. We come back for future additional testing to ensure we have lowered the radon levels in your home. Jamie Steele, owner and operator, has been in the radon mitigation industry for 5+ years and has desire to help home owners and renters live in a healthy environment. Jamie has also been in the construction industry his entire adult life and knows the ins and outs of how to apply a system in your home with the least amount of changes possible.


Avatar for Pillar To Post

Pillar To Post

No reviews yet

Pillar To Post

No reviews yet
3 years of experience

Top nationwide franchise owned and operated by Andrew Webster. We cover home inspections and have 3 packages to choose from for service and cost. We also can test for Radon, Water Quality, Mold and meth use in the home. Our goal is 100% customer satisfaction, and we also have 1 million dollars in error and omissions by the contractor, client and agent. Since opening in December 2022, we have had nothing but 5-star reviews internally and on google.

Top nationwide franchise owned and operated by Andrew Webster. We cover home inspections and have 3 packages to choose from for service and cost. We also can test for Radon, Water Quality, Mold and meth use in the home. Our goal is 100% customer satisfaction, and we also have 1 million dollars in error and omissions by the contractor, client and agent. Since opening in December 2022, we have had nothing but 5-star reviews internally and on google.

Radon Detection and Reduction questions, answered by experts

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

Radon is the number one non-smoking cause of lung cancer in the United States, but it can cause some other concerning side effects in the meantime. If you have a raspy voice, chest pains, trouble breathing, difficulty swallowing, or any of the above, don’t hesitate to perform radon testing and install a mitigation system as soon as possible.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

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.

Since radon typically comes out of the soil, it is most commonly found in the lower levels of a home. In houses with basements, that's a common location for radon. Homes built directly on the ground may have radon on the ground floors. Radon can be found on the upper floors of the home, but often in lower concentrations than in lower levels.

The Summerset, SD 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.