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Avatar for Airtight Radon Solutions LLC
Airtight Radon Solutions LLC
5.0(
29
)
Radon Gas - AbatementRadon Gas - Testing

Serving Hollis, NH and surrounding areas

Approved

Super Service Award Winner

In business since 2024

Free estimates

Offers commercial services

"Marcel performed a flawless installation of a Radon Mitigation system in my home. He thoroughly explained and shared testing results as he proceeded with the installation. He continually checked and rechecked his measurements and cuts making sure everything was level and plumb. I'm a very meticulous customer and I was completely satisfied with my new system. He left an instrument to monitor my radon levels for a few days just to be absolutely sure that everything is performing as it should be. If you need Radon Mitigation...I HIGHLY recommend Airtight Radon Solutions."
My Projects
Radon Mitigation Ranch
Response time6 hrs
Response rate98%
23 neighbors recently requested a quote
Avatar for US Water Consultants, Inc.
US Water Consultants, Inc.
4.6(
98
)
Radon Gas - Abatement

Serving Hollis, NH and surrounding areas

Approved

In business since 1998

Free estimates

Warranties offered

"Mark, the owner came over himself to estimate the job. He was extremely knowledgeable and was able to explain what and why they were going to do. He also was able to give comparisons of equipment used by other companies. The front office kept me updated on tests and appointments, timely. His crew was very professional and PUNCTUAL! They took the time to remove all signs and equipment of my old water system, which they didn't have to do. Due to hard-packed dirt under my basement floor, they had to return 3 times to bring my Radon Air within EPA standards. However, the quoted price didn't change, and each time the crew was as professional as their first visit. I highly recommend Mark and US Water Consultants for your Radon Air Mitigation and any water improvements and modifications."
Response time1 day
5 neighbors recently requested a quote
Recommended by100%of homeowners
Avatar for True North Home Inspections, LLC
True North Home Inspections, LLC
4.9(
26
)
Radon Gas - Testing

Serving Hollis, NH and surrounding areas

Approved

In business since 2020

Free estimates

Emergency services offered

"John was great, came to inspect our home in Rochester and was professional and had every piece of equipment you could need to give us a detailed look into our house. Even when the seller made a mistake on the sewer and water system types John helped us test both and went above and beyond. Cannot recommend enough if you want a the best and safest bet for an inspection!"
Response time3 hrs
Response rate89%
3 neighbors recently requested a quote
Avatar for Erickson Foundation Solutions
Erickson Foundation Solutions
4.1(
74
)
Radon Gas - AbatementRadon Gas - Testing

Serving Hollis, NH and surrounding areas

Approved

In business since 1979

Free estimates

Emergency services offered

"I hired Erickson Foundation for radon mitigation. Job went smoothly. They communicated well, were very professional, and reviewed all potential options for the job with me. The system installation was done on time, professionally done, and well cleaned-up. The equipment is high quality, with the 10-year warranty being a big plus."
Sinking Step Repair
Settling Home Addition
Settling Slab
EZ Posts for deck addition
Foundation Crack Repair

+60

Response time1 day
7 neighbors recently requested a quote
Recommended by88%of homeowners
Radon Systems LLC
5.0(
234
)
Radon Gas - AbatementRadon Gas - Testing

Serving Hollis, NH and surrounding areas

In business since 1985

Free estimates

Emergency services offered

"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."
Recommended by99%of homeowners
Avatar for Absolute Water System LLC
Absolute Water System LLC
4.7(
30
)
Radon Gas - AbatementRadon Gas - Testing

Serving Hollis, NH and surrounding areas

In business since 1981

Emergency services offered

Credit card accepted

"They were the first to give us a quote and were able to come out as soon as we needed them to. Installation was smooth, and they have been good at following up to make sure the system is working. Because our radon is still slightly high, they are doing another radon test and will follow up if it comes back high yet again. We would definitely recommend them to others!"
Additional Photos
Additional Photos
Additional Photos
Recommended by96%of homeowners
Avatar for Rhino Radon Services
Rhino Radon Services
4.2(
9
)
Radon Gas - AbatementRadon Gas - Testing

Serving Hollis, NH and surrounding areas

In business since 2014

Free estimates

Emergency services offered

"It went fantastic. Scheduling wise the gentlemen at Rhino Radon were quick to respond to our inquiry via there website were I filled out a online questionnaire. Once speaking to Henry about the specifics of my home via phone and letting him no my situation. They were prompt in scheduling a date for installation to assure my radon problem didn't delay my ability to sell the home. From the time I filled out there questionnaire on there website till the system was installed and fully operational, all took place In one weeks time. I no from experience that these days the attentiveness and service Rhino Radon provided me can be difficult to find. Having recently just finished the process of building my own home in Malden and dealing with a wide range of company's and workers. It's the little things that stand out like personal treatment,responding quick to inquiries or concerns and of course taking the time to do things properly the first time around while still treating the home with respect. Rhino Radon came recommended to me via a friend and I couldn't thank them enough for steering me in the right direction for my radon mitigation needs. I would like to do the same to anyone currently searching for a radon company. If you want the job done right and a pleasant experience, look no further for your radon needs then Rhino Radon Services.


"
Recommended by100%of homeowners
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Radon Detection and Reduction questions, answered by experts

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

Mitigation reduces radon levels, protecting your health and complying with safety standards.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

The Hollis, NH 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.