Get matched with top radon detection and reduction specialists in Gilford, NH

True North Home Inspections, LLC

4.92(

5 years of experience

True North Home Inspections, LLC is the solution to all of your home inspection needs. We take great pride our extreme professionalism, timeliness, and superior customer service on every job. We makes sure to develop a lasting relationship, so that the next time service is needed, there will be no question on who to call. Satisfaction guaranteed!

"John was very thorough in his work and took the time to point out to my husband not only what would need or even just WANT repair but also how to do the work himself so that we could do it ourselves. We will be recommending True North to anyone we know who needs an inspection done from here on out."

Kayla R on December 2023

"John was very thorough in his work and took the time to point out to my husband not only what would need or even just WANT repair but also how to do the work himself so that we could do it ourselves. We will be recommending True North to anyone we know who needs an inspection done from here on out."

Kayla R on December 2023

Maine Radon & Water Treatment

Maine Radon & Water Treatment

4 years of experience

Free onsite estimate

Maine Radon & Water Treatment is a trusted, locally owned company based in Windham, proudly serving surrounding communities throughout Maine. We specialize in comprehensive radon mitigation and water treatment solutions designed to keep your home safe, healthy, and up to code. With years of experience, we are committed to delivering top-quality workmanship, honest service, and lasting results. Our team takes pride in professionalism, integrity, and treating your home like our own. Whether you're dealing with radon concerns or water quality issues, we’re here to help—reliably and affordably. Contact us today to schedule your consultation.

"Cannot say enough good things about this company! Responsive, respectful, quality work , and reasonably priced."

Benjamin L on July 2025

"Cannot say enough good things about this company! Responsive, respectful, quality work , and reasonably priced."

Benjamin L on July 2025

Environmental Testing & Research Laboratories, Inc

347

Environmental Testing & Research Laboratories, Inc

347

Customers say: True professional

Recommended by 93% of Angi 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

"as advertised"

Nancy C on July 2018

Seacoast Inspections LLC

4.93(

Seacoast Inspections LLC

4.93(

Customers say: Super punctual

Recommended by 95% of Angi customers

Licensed Home Inspector #698 MA, #107 NH ASHI Certified Inspector #247162, Certified Level II Building Science Thermographer #31162, EDR Certified, Certified WDI Registry Inspector #90113. No Fee guarantee!

Able Home Inspection Inc

Able Home Inspection Inc

Customers say: Super punctual

Recommended by 93% of Angi customers

We are Independent Home Inspectors, providing valuable inspection information conveyed through a detailed report with photos, since 1983. Our home inspections reveal the condition of structural, electrical, heating, cooling, plumbing, roofing, chimneys, fireplaces, windows, doors, siding and many other home components. Price shopping home inspectors? Have you checked if your potential home inspector:

"Evan was awesome. He was quick to respond when I called and made schedule adjustments to fit us in on the only day and time we had available. He was easy to communicate with whether it was phone call text or email. On the day of the inspection he was there early to do the exterior and went over everything with me outside before the realtors got there. When we were inside he was meticulous and explained things to me every step of the way. You could tell he cares about what he does and I felt like he was looking out for us as the buyers. He was a funny guy who you want to have a beer with after and made the experience very pleasant. I would definitely recommend Evan and would use him again in the future. I think his pricing is fair and while it may look like we paid more than others it’s because we added a radon test and water quality test."

Andrew D on June 2018

"Evan was awesome. He was quick to respond when I called and made schedule adjustments to fit us in on the only day and time we had available. He was easy to communicate with whether it was phone call text or email. On the day of the inspection he was there early to do the exterior and went over everything with me outside before the realtors got there. When we were inside he was meticulous and explained things to me every step of the way. You could tell he cares about what he does and I felt like he was looking out for us as the buyers. He was a funny guy who you want to have a beer with after and made the experience very pleasant. I would definitely recommend Evan and would use him again in the future. I think his pricing is fair and while it may look like we paid more than others it’s because we added a radon test and water quality test."

Andrew D on June 2018

Coletta Radon Systems

Coletta Radon Systems

Coletta Radon Systems was founded by Robert Coletta in March of 2007. Our main goal is to protect you and your family from the harmful effects that radon exposure can have on the respiratory system. Coletta Radon Systems can improve your indoor air quality and guarantee to reduce the radon levels in your home. Coletta Radon Systems installs energy star radon fans, water treatment systems and high efficiency heating and cooling systems. Coletta Radon Systems uses the most current products to say up-to-date and maximize your energy savings. We offer AARST/NRPP certified technicians, guaranteed results, quality workmanship and reasonable rates. Coletta Radon Systems is fully licensed and insured. Coletta Radon Systems strives to ensure that radon levels are low and customers are happy. Call us today to schedule your appointment - (603) 401-3563 or visit us at www.colettaradonsystems.com

"Rob was easy to communicate with and we were satisfied with their work. Our radon levels plummeted as a result of the system installed."

Bonnie S on March 2019

"Rob was easy to communicate with and we were satisfied with their work. Our radon levels plummeted as a result of the system installed."

Bonnie S on March 2019

Advanced Radon Mitigation & Water Treatment

Advanced Radon Mitigation & Water Treatment

Customers say: Quality work

New Hampshire's Radon Removal and Water Treatment Specialists! Radon in your homes' Air or Water can have serious health implications. It is the number 1 cause of lung cancer in non-smoking adults. Radon is odorless and tasteless. The only way to know if it is there, and how much, is to test for it. Aside from solving the radon problem in your air and water, we can also design and install a water treatment system to remove a host of minerals and impurities from your drinking water. We have the right water filtration systems to remove iron and hydrogen sulfide gas before it enters your home for domestic use. We install State of the Art Water Softeners that will remove soluble metals and reduce the hardness in your water, which will make your water appliances perform better and last longer.

"Although my relationship with ARM started a bit rocky, in the end I was very happy with the service provided. After a ARM technician replaced a fan, the noise level in the surrounding rooms increased to a point where I wondered if I could sell the house. I got the impression from the technician who installed the fan and was told by another company's technician there probably wasn't anything I could do. But, Mike G, from ARM, was able to lower the noise to a tolerable level by reducing the vibration from the attached pipe by making small adjustments including re-positioning the fan, removing old clamps and adding foam. He patiently answered all my questions and explained what he was doing throughout the diagnostic. Although the noise problem was resolved, the radon level was still 10.8 pCi/L so ARM returned (with the original technician and Keith to add a second suction point. . I was very happy with their work. The pipes were placed in a way that is an unobtrusive as possible, are securely fastened and as I learned, have the right pitch. Before the installation, Keith explained what they did to determine where they thought the suction point should be, and after must have been a long day for them, made me feel it was important that all my questions were answered. My radon level is now .6 pCi/L! My only complaint is that it takes a long time to get appointments and for two of the visits they were a few hours late.. The cost of service is for the 3 visits which were 11/9/18, 12/26/18, and 1/30/19 and includes the cost of the fan."

Jill H on February 2019

"Although my relationship with ARM started a bit rocky, in the end I was very happy with the service provided. After a ARM technician replaced a fan, the noise level in the surrounding rooms increased to a point where I wondered if I could sell the house. I got the impression from the technician who installed the fan and was told by another company's technician there probably wasn't anything I could do. But, Mike G, from ARM, was able to lower the noise to a tolerable level by reducing the vibration from the attached pipe by making small adjustments including re-positioning the fan, removing old clamps and adding foam. He patiently answered all my questions and explained what he was doing throughout the diagnostic. Although the noise problem was resolved, the radon level was still 10.8 pCi/L so ARM returned (with the original technician and Keith to add a second suction point. . I was very happy with their work. The pipes were placed in a way that is an unobtrusive as possible, are securely fastened and as I learned, have the right pitch. Before the installation, Keith explained what they did to determine where they thought the suction point should be, and after must have been a long day for them, made me feel it was important that all my questions were answered. My radon level is now .6 pCi/L! My only complaint is that it takes a long time to get appointments and for two of the visits they were a few hours late.. The cost of service is for the 3 visits which were 11/9/18, 12/26/18, and 1/30/19 and includes the cost of the fan."

Jill H on February 2019

IndoorDoctor LLC

IndoorDoctor LLC

Veteran owned indoor air quality testing, engineering and consulting firm. Some risks are unavoidable but Indoor Air Pollution is a risk you can do something about. IndoorDoctor engineers test for possible environmental hazards, such as poor air quality. We define your environmental concern, evaluate its significance, and develop corrective actions or preventative plans to reduce the perceived hazard. Our reports are totally unbiased as we are not in the remediation business. For example, we have helped our clients to identify air quality issues that are contributory to ill-health such as molds and allergens. Many of our customers request air quality assessment before investing hundreds of thousands of dollars in a real estate purchase. Other customers use our reports to support insurance claims. But all of our customers want the peace of mind that knowing the air they are breathing is free of environmental contaminates.

"I explained to Jeff that I had bought a new condo, which was new construction, and I had concerns that the HVAC was not properly working and I wasn't getting enough clean air. Jeff was able to come the very next day. He is incredibly knowledgeable and clearly passionate about what he does. He conducted many tests - toxic gas levels, dust, mold, dander, etc. After about 30 minutes of testing, he identified I had a slow gas leak in my gas fireplace, which apparently had not been installed right. He stayed with me while the gas company came to remedy the situation. I am so grateful for him or I would never have known about the leak, which was probably contributing to health issues I was having. He also was able to turn around the other lab results incredibly quickly. Several others in my building have since hired him. Can't recommend him enough."

Julie J on April 2018

"I explained to Jeff that I had bought a new condo, which was new construction, and I had concerns that the HVAC was not properly working and I wasn't getting enough clean air. Jeff was able to come the very next day. He is incredibly knowledgeable and clearly passionate about what he does. He conducted many tests - toxic gas levels, dust, mold, dander, etc. After about 30 minutes of testing, he identified I had a slow gas leak in my gas fireplace, which apparently had not been installed right. He stayed with me while the gas company came to remedy the situation. I am so grateful for him or I would never have known about the leak, which was probably contributing to health issues I was having. He also was able to turn around the other lab results incredibly quickly. Several others in my building have since hired him. Can't recommend him enough."

Julie J on April 2018

Epping Well & Pump Co Inc

4.80(

Epping Well & Pump Co Inc

4.80(

Customers say: Quality work

Our focus at Epping Well and Pump is about providing a high value in the service, expertise and equipment we offer. We aim to be professional at every level to ensure that the customer is educated and satisfied with the decisions they have made regarding the drinking water in their home or business.

"They did a very good job, they were very professional. I have interview 3 other providers and they were the most trusted provider, knowledgeable and experienced. He seems to be ethical for me, and so I went to hire them, and they did a very good job."

Maureen M on July 2019

"They did a very good job, they were very professional. I have interview 3 other providers and they were the most trusted provider, knowledgeable and experienced. He seems to be ethical for me, and so I went to hire them, and they did a very good job."

Maureen M on July 2019

Basement Systems of New Hampshire Inc

4.44(

Basement Systems of New Hampshire Inc

4.44(