
Serving Ashland, NH and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"John is kind and to the point. He did a thorough inspection and was transparent with any and all findings. A pleasure to work with!"

*The Angi rating for Radon Detection And Reduction companies in Ashland, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.
*The HomeAdvisor rating for Radon Detection And Reduction companies in Ashland, NH is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.
Last update on August 19, 2026

Serving Ashland, NH and surrounding areas
Approved
In business since 2020
Free estimates
Emergency services offered
"John is kind and to the point. He did a thorough inspection and was transparent with any and all findings. A pleasure to work with!"

Serving Ashland, NH and surrounding areas
Approved
Free estimates
Emergency services offered
Credit card accepted
"Very good job! Thank you!"





+150
Serving Ashland, NH and surrounding areas
In business since 2008
Free estimates
"The house we found and wanted to buy was built at the end of the 18th century. While the house kept many its original features it looked like it was well maintained by the owners. However, with the house of such age no one can be sure that there are no serious problems hidden somewhere. Since we have not been that lucky with the inspectors in our previous house buying we were very thorough and not in a hurry looking for an inspector. We wanted to find the âbest of the bestâ. Our Realtor who was very helpful during the whole buying process recommended us a couple of inspectors. Also we found a number of inspectors with very good reviews on the internet. We communicated with those inspectors and explained our situation about historic house. What surprised us is that they promise to conduct the whole inspections of the house together with inspecting septic system just within two-three hours. Yes, they were going to get help from one of their team members, but two-three hours for the house built in 1790 was certainly not enough. So, we continued our search. One by one we were scanning through every review on the Internet on home inspectors we could find. At some point we stumbled at the review where the buyer was upset that the inspector he hired spent too much time conducting the inspection. That inspector was Mr. Stephen DeCosta. We called him to discuss our case. He sounded solid, explained us the process in details, and informed that the time he spends on the house like ours is not less than 4-5 hours. In addition, he recommended us septic system professional. Looking ahead â we were very happy with the work of that septic system guy. Steve is very thorough, knowledgeable, and highly professional inspector. He totally spent 6 hours conducting house inspection. While inspecting the house Steve explained every small detail even suggesting how to fix the problem. I am an engineer myself. I can do almost any job with my hands and skills - from house repair to house remodeling. However, I was impressed with the depth of Steve's professionalism. At the end of his inspection Steve provided us with a detailed report of all things that need to be fixed. Steveâs report helped us to create a good list of all problems in the house and to re-negotiate a better price for the house. He is the best home inspector we ever worked with. All together working with Steve was a fun, a good learning lesson, and a very reassuring process. After his inspection we knew for sure that we made a good choice, and while the house is old we got confidence that we will be able to fix all the problems the house has. We highly recommend Steve to every one who is looking for a great professional and expects a consistent result of home inspection."


Serving Ashland, NH and surrounding areas
In business since 1988
Free estimates
Credit card accepted
"Highly recommend this team to help with Radon Mitigation. They were professional, easy to work with, and clearly experienced."

Serving Ashland, NH and surrounding areas
In business since 2014
Free estimates
Emergency services offered
"I have worked with many contractors,plumbers,electricians, etc. in my time owning two homes. On here in New England and the other in Pembroke Pines,FL. These gentlemen from rhino radon services were deffinelty personable and proffesional I felt like my home was in good hands with this company. After calling around and having a job scheduled with another mitigation company I was blown off and left with a short deadline. Luckily after speaking with Henri from rhino radon they were able to squeeze me right in your schedule the very next day even though they had two other jobs scheduled they showed up at 5pm and still completed the job to ensure I met my closing date, if your looking for a standout and accommodating radon company I would say look no farther then rhino radon. I was very pleased with the service I recieved. HIGHLY RECOMMENDED
"
Serving Ashland, NH and surrounding areas
In business since 2006
Free estimates
At Scherer Radon Testing Services, we are the premiere source for radon testing. Since 2006, our company has offered the finest in craftsmanship and quality. For the best of the best, call today for your next project.

Serving Ashland, NH and surrounding areas
In business since 2023
Free estimates
Small jobs welcome
"In the whole stressful home buying process he made the inspection the easiest, most stress-free part. Awesome!"





+3
From average costs to expert advice, get all the answers you need to get your job done.

The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.

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What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.

What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.