ALO Radon logo
Approved Pro
This pro has maintained an average of 4.5+ star throughout their time with Angi.
Approved Pro

ALO Radon

Radon Gas Testing, Radon Gas Abatement,
This pro has maintained an average of 4.5+ star throughout their time with Angi.

About us

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!

Business highlights

Emergency services offered
5 years of experience

Services we offer

Radon Testing and Mitigation

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Accepted Payment Methods

  • CreditCard
Reviews
5.025 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
100%
4
0%
3
0%
2
0%
1
0%

Filter reviews by service

Showing 1-25 of 25 reviews
Jason B.
Jan 2025
5.0
Radon Gas Testing
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.

Mike M.
Apr 2024
5.0
Radon Gas Abatement
Yes, I recommend this pro
yes i recommd ALO

Sandra M.
Aug 2023
5.0
Radon Gas Abatement
Yes, I recommend this pro
They were grrat

SHARON R.
May 2023
5.0
Radon Gas Testing
Yes, I recommend this pro
I hired this company to do a radon test. Our house tested pretty high, even with a current mitigation system running. He gave me a timely and very reasonable estimate for a mitigation system.

Sharon C.
May 2023
5.0
Radon Gas Abatement
Yes, I recommend this pro
Quick response. Professional quality of work.

Chad B.
Apr 2023
5.0
Radon Gas Abatement
Yes, I recommend this pro
$650
They were great responded right way

Sarah B.
Sep 2022
5.0
Radon Gas Abatement
Yes, I recommend this pro
He is extremely knowledgeable, answered every question that I had And he has great customer service skills too, thank you For reducing my radon level from 27 to 1!!

RODNEY H.
Sep 2022
5.0
Yes, I recommend this pro
Anthony called me same day, came and set up RADON testing equipment. Reading was below mail in testing. No further work was needed. Anthony was very professional and extremely timely.

Kathleen C.
Jul 2022
5.0
Radon Gas Abatement
Yes, I recommend this pro
$750
This professional called me the same day I notified home advisor and set up services for the next day. Anthony travelled over two hours to come to my home in 100+ degrees to fix my radon system. Thanks!!!

Kenneth A.
Jul 2022
5.0
Radon Gas Abatement
Yes, I recommend this pro
$1,500
Great response! Very professional.

John U.
Jun 2022
5.0
Radon Gas Abatement
Yes, I recommend this pro
Anthony was quick to respond, and within a few days, we were on his calender. When he arrived, he recommended a larger fan than originally quoted, and explained why (add'l cost was minimal). Cometed work in a thorough and timely manner, explaining everything along the way. Would strongly recommend ALO Radon to EVERYONE! Anthony is a breath of fresh air, in an area that is somewhat service challenged. Thanks so much!

Mike G.
Jun 2022
5.0
Radon Gas Abatement
Yes, I recommend this pro
$2,300
Courteous, responsive, got the job done quickly and then followed up to make sure we were satisfied with the work.

Les G.
Nov 2021
5.0
Radon Gas Abatement
Yes, I recommend this pro
Very good service. He explained what he thought should be done and why. Prompt and courteous. I would definitely recommend him. 5 stars for sure.

Shelle D.
Sep 2021
5.0
Yes, I recommend this pro
$125
ALO Radon was literally on the phone with me less than 10 minutes of me asking for a consultation. They made time that day to come up and place a sensor in our home to detect radon, and even came in on a Saturday to pick it up because my husband and I work during the week. The results were instant and the service was outstanding. No high pressure to eradicate based on our numbers, but the topic was clearly covered. I very highly recommend ALO Radon!

Beth W.
Aug 2021
5.0
Yes, I recommend this pro
Anthony set up a Radon test for my elderly father in Spearfish. He responded timely, was professional, and I would recommend without hesitation.

BRIAN K.
Jul 2021
5.0
Radon Gas Abatement
Yes, I recommend this pro
$5,000
Anthony did a great job! Levels went from ~20 down to 0.5 . His responsiveness and professionalism really makes him stand apart from his competitors. Would highly recommend ALO for radon mitigation projects.

Kim G.
May 2021
5.0
Radon Gas Testing
Yes, I recommend this pro
Anthony was very polite and knowledgeable. The hole job was done in two days. Radon readings went from 14 to 34 down to 0.4, we are very happy .

Jay P.
May 2021
5.0
Radon Gas Testing
Yes, I recommend this pro
He did a god job.

Melissa O.
May 2021
5.0
Radon Gas Testing
Yes, I recommend this pro
They did a fabulous work and very professional.
Response from ALO Radon
"I spoke with Melissa and she said the 4 on value was a mistake She was completely satisfied with every aspect of her job including the price and the cost associated with 100% customer satisfaction She is going to try to reach the HA team and correct to a 5 star on value At ALO RADON I strive for excellence in every category And my customers live relatively Radon free lives Everything I do is Limited Lifetime Warranty With a 5+5 year Limited Warranty on the fans themselves Using only the highest quality testing equipment, parts and supplies ?Ridding the world of Radon,one home at a time?"

Richard H.
May 2021
5.0
Radon Gas Abatement
Yes, I recommend this pro
On time, on price, professional and polite. Delivered exactly what I requested and my family needed

Josh T.
Apr 2021
5.0
Radon Gas Abatement
Yes, I recommend this pro
$2,000
Anthony is extremely knowledgeable and extremely polite and friendly. He explained the whole process and was unbelievably professional.

Scott S.
Apr 2021
5.0
Yes, I recommend this pro
$2,000
Anthony with ALO Radon, came out and completed and Radon test of our home. Was extremely easy to work with, and knowledgeable. He explained everything up front, and answered all my questions. His work is A+ and we would recommend him to anyone.

Merle Y.
Apr 2021
5.0
Very responsive professional company, I will use Alo Radon on all my future properties, they really helped me out of a difficult problem at a reasonable price. As a general contractor I have used most of their competition and repeatedly received overpriced, unresponsive and shoddy work from everyone else. Anthony stands above in this industry. I am even consulting with him on potential property purchases as an advisor.

Carl M.
Apr 2021
5.0
Yes, I recommend this pro
$25
Very knowledgeable and professional

Jeremy K.
Mar 2021
5.0
Yes, I recommend this pro
$125
Anthony with ALO Radon came out and did a CRM radon test for us. He was very knowledgable about radon and patient enough to answer all my questions. I recommend these guys to anyone needing radon work done. Why is there no RADON category? I will have to file this under HOME INSPECTION I guess.

Licensing

State Contractor License Requirements

All statements concerning insurance, licenses, and bonds are informational only, and are self-reported. Since insurance, licenses and bonds can expire and can be cancelled, homeowners should always check such information for themselves. To find more licensing information for your state, visit our Find Licensing Requirements page.

*Contact business to see additional licenses.

FAQ

ALO Radon is currently rated 5.0 overall out of 5.

Monday: Open All Day Tuesday: Open All Day Wednesday: Open All Day Thursday: Open All Day Friday: Open All Day Saturday: Open All Day Sunday: Open All Day

ALO Radon accepts the following forms of payment: CreditCard

Yes, ALO Radon offers free project estimates.

No, ALO Radon does not offer eco-friendly accreditations.

No, ALO Radon does not offer a senior discount.

Yes, ALO Radon offers emergency services.

Yes, ALO Radon offers warranties.