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Approved Pro
Approved Pro

Radon Systems LLC

Radon Reduction, Radon Detection, Mold Remediation,

About us

Guaranteed Results! Radon Systems LLC has installed over 20,000 successful Radon mitigation systems since 1985. Radon Systems LLC is one of the few full service Radon mitigation companies that remediate both Radon in air and Radon in water. We are state certified and fully insured. Radon Systems LLC is recognized by the National Environmental Health Association (NEHA) and the American Association of Radon Scientists and Technologists (AARST).

Business highlights

Emergency services offered
40 years of experience

Services we offer

Sub Slab Ventilation System & Active Soil Depressurization , Sub Membrane Ventilation Systems, Heat Recovery Ventilation, & Diffused bubble aeration for Radon in Water.

Amenities

Emergency Services

Yes

Free Estimates

Yes

Warranties

Yes

Senior Discount

$50.00

Accepted Payment Methods

  • Check
  • Visa
  • MasterCard
Reviews
5.0219 Reviews
Number of StarsImage of DistributionNumber of Ratings
5
99%
4
0%
3
0%
2
0%
1
0%

Filter reviews by service

Showing 1-25 of 219 reviews
James P.
Jul 2024
5.0
Radon Reduction
Yes, I recommend this pro
$1,250
Derick did a great clean job. I live in a ranch with an unfinished basement. Install took around 1 hour. Derick was punctual, professional and informative. System is doing its job!

Dave S.
Feb 2024
5.0
Radon Reduction
Yes, I recommend this pro
$1,500
Radon Systems LLC did a great job. I had a radon level of around 6.5 in my basement for years, and finally decided I needed to address it. After receiving 3 quotes, I had Dave from Radon Systems come over to do the job. I initially was resigned to having the PVC pipe go up the side of my house, but Dave found a way to run the piping inside the basement and go thru the garage, with only 18" of PVC sticking up past the garage roof. Excellent! And now my radon level is around 1.0 to 1.5 all the time. The entire job took half a day, and Dave was clean, respectful and easy to work with. I absolutely recommend them.

KK A.
Sep 2023
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
I recently had a radon mitigation system installed in my home, and I have to say that the experience with Radon Systems LLC was truly exceptional. Nick arrived on-time and was friendly and professional. Nick patiently answered all my questions and took the time to explain the entire process, which immediately put me at ease. What truly impressed me was how efficiently Nick completed the installation. Nick arrived on time and worked diligently to get the job done without compromising on quality. The work included drilling a large hole in my slab (to extract the radon), filling in gaps with foam, patching a 5x3" hole with concrete, and adding a square slim fan to the side of my house with additional piping to extract the radon away from the property. The entire process took less than 2 hours. If you're in need of radon mitigation, I wholeheartedly recommend Radon Systems LLC! Their reviews speak for themselves and they even offer a 2 year warranty on the fan as well as a warranty of 2pCi/L or lower on the work itself.

Jacob K.
Jul 2023
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$1,250
Great, helpful and efficient

LINDA P.
Aug 2022
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$1,050
excellent! showed up on time , answered all questions. Explained how system works. Did a walk around entire house to see the best place to put system inside and out. Very caring for his customers. I would highly recommend this company to any one in need. Linda J

Rosemary P.
Mar 2022
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
The technician that came is very very nice, very respectful and very helpful and he was able to come on the same day when i called. He made me and my husband feel very comfortable. I will definitely use them again, were happy that he had the job done. He did it in a very competent manner. I appreciated that the technician came.

Ian D.
Feb 2022
5.0
Gas Leak Repair
Yes, I recommend this pro
They haven't provided a service yet but their Customer service is really good

Curt C.
Jan 2022
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$1,050
On a whim I decided to check our radon levels in our basement. I guess I assumed this would have been done by the previous homeowner. Apparently one should never assume. My test game back at 5.9 pCi/L. The acceptable level is 4. And I wasn't going to chance my family's health. So I did my research on radon mitigation and sent a quote request through Angi's platform. I received a phone call the owner, John Spokis within 30 minutes on the Friday before New Year's. He explained the entire process and provided me transparent pricing over the phone and in writing via email same day. He was able to schedule us that Monday after New Year's. The installer Derek called me an hour before arrival to let me know he was on his way. He arrived on time, explained the work that was to be performed, reviewed the location with me and made sure I approved of everything before he started. The installation itself took about two hours. This included patching some cracks we had in our concrete at no additional charge. Frankly, I wasn't terribly excited about having a big white fan unit and pipe installed along my house. But I also knew that this was the optimal solution for our needs. And Derek took the time to make it look as neat and clean as possible. I really couldn't have asked for an easier or more pleasant installation at a very fair price. Oh and they guarantee after install that your radon will be 2pCi/L or below. They even give you a kit to test and make sure it has been lowered. There is a lifetime warranty on parts and labor that is transferable if you sell your home. And the fan has a 5 year warranty. So, if you have unsafe radon levels in your home. Don't procrastinate like I did. Just call Radon Systems and get it done in two hours. You'll be glad you did. I am.

JOHN E.
Aug 2021
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
Everything was great. They were very efficient and knowledgeable.

James C.
Jan 2021
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$950
It went very smoothly. The workman was on time and did all of the work quickly and neatly.

Bruce H.
Jan 2021
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$850
Professional work

Ron B.
Nov 2020
1.0
Radon Reduction, Radon Detection
They never replied to me, even after leaving phone message If they didn’t want to bulge on the job ( for whatever their reason was ) they at least could have answered my calls or emails
Response from Radon Systems LLC
"[Member Name Removed], We don’t put in alarms. We install radon systems. We are in Mass and don’t travel to Maine."

Geoffrey R.
Oct 2020
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$850
Great Company to work with. Super straight forward, no silly add ons and did a great job of explaining what they were going to do. We had one little hiccup that was quickly addressed and fixed. About 6 months later we had vibrations that started. They came over and showed me what had happened. It wasn't their install, it was insulation that had been sucked up into the pipe. They handled it amazingly, swapped out for a new blower and added in a few sound dampening elements. I would choose to work with these guys again 100%. Any time anyone asks about needing a radon mitigation, I hands down suggest them. Great prices, Great work, and stand by their work!

ANDREW R.
Dec 2019
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$950
Tech was 1/2 hr early, worked was excellently performed, great service.

Bruce N.
Oct 2019
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$950
Excellent service and price. These are the knowledgeable pros you want to do the job.

Peter D.
Jun 2019
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$950
Fast response to inquiry. Flat rate fee and was able to schedule the work within 7-10 days. The installer was on time, finished on time and was very professional. Site was left clean and tidy. Retesting after 5 days had reduced the radon to below 2. The install worked great and as they warranted it would.

Paul B.
Jun 2019
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
The company owner, John, personally performed the work. Arrived at exactly the predetermined time . . . even though it was a rainy, early morning rush hour commute. John worked smoothly and efficiently while patiently answering my questions. Great installation!

Warren B.
Jan 2019
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
This company is great to deal with. The price was fair and comparable to other quotes I got with no extras which some companies in this field can charge. I always got a quick reply when calling with questions. The installer arrived on time and worked quickly and professionally. He did a great job and the post test for radon passed. I would definitely hire them again if needed.

William K.
Nov 2018
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
We were selling our house and the radon test came back high so we needed quick and effective service. The appointment was scheduled a week from our call. The technician arrived on time and helped identify the best location for the system that was both effective and as aesthetic as possible. The install went quickly and he took the time to explain how it worked and what we should look for in terms of monitoring and maintenance. Overall, it was a good experience.

Rong Z.
Nov 2018
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
The job is done nicely and it's been over a year and it works well. I did call once for support afterwards , the system stopped at a extreme cold day and the guy explains things well and it does come back the other warm day.

Delores F.
Jul 2018
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$950
Great experience. John and Derick (I believe that is who actually came out to do the work) were very professional. No haggle price and explained thoroughly what was being done. Work was done without issue. My husband and I have already referred him to a friend of ours.

Sonu S.
Jun 2018
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$950
The system was installed on the appointed day and radon levels came down from 5 pCi/L to 0.5 pCi/L. Floor cracks were also filled.

Joel K.
Jun 2018
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$950
Arrived one week after making the call for a quote. Arrived on time, Installed the system in the location I had identified in the basement in a few hours. Took only a few hours . Installed was polite, left the site clean, and did a nice job. One point is that these system, when attached to the outside of the house, do make some noise - a constant noise, but can be heard inside the house. So, think about location from both an internal and external perspective.

Elizabeth T.
Jun 2018
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
$950
Went very well. Super easy.

Sharon H.
Mar 2018
5.0
Radon Reduction, Radon Detection
Yes, I recommend this pro
This is a well-managed company that was very responsive to my needs, fairly priced, and high quality in every way. John the owner returned my call promptly for replacement of a fan for my radon mitigation system. He is very knowledgeable, takes the time to talk with you, and answered all my questions in a timely manner. I needed my radon fan checked, and ultimately replaced, and even in the midst of bad weather he was able to set up an appointment for one of his technicians to come out and service my system. One of his technicians, Derek, came out on time to replace the fan and was terrific. Very professional, knowledgeable, and courteous. He talked me through several aspects of my mitigation system that I was unaware of, educated me on the fan replacement, and did the work efficiently and in a quality manner. One of the best service technicians I've come across, and he took a lot of pride in his work. The service was very reasonably priced and true to John's original quote. I would use this company again in a heartbeat, very impressed overall.
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Showing 1-25 of 219

Licensing

Bonded

Insured

Licensed*

Trade License Number

104954RMT

Trade License Expiration

10/04/2025

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

Radon Systems LLC is currently rated 5.0 overall out of 5.

Monday: 6:00 AM - 6:00 PM Tuesday: 6:00 AM - 6:00 PM Wednesday: 6:00 AM - 6:00 PM Thursday: 6:00 AM - 6:00 PM Friday: 6:00 AM - 6:00 PM Saturday: 7:00 AM - 5:00 PM Sunday: 7:00 AM - 5:00 PM

Radon Systems LLC accepts the following forms of payment: Check, Visa, MasterCard

Yes, Radon Systems LLC offers free project estimates.

No, Radon Systems LLC does not offer eco-friendly accreditations.

No, Radon Systems LLC does not offer a senior discount.

Yes, Radon Systems LLC offers emergency services.

Yes, Radon Systems LLC offers warranties.

Radon Systems LLC offers the following services: Sub Slab Ventilation System & Active Soil Depressurization , Sub Membrane Ventilation Systems, Heat Recovery Ventilation, & Diffused bubble aeration for Radon in Water.