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Top-Rated Radon detection and reduction specialists in Gorham - Updated Nov 2026

Avatar for Professional Home Inspection Service, Inc.
Professional Home Inspection Service, Inc.
5.0(
6
)
Radon Gas - AbatementRadon Gas - Testing

Serving Gorham, NY and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Warranties offered

"George and his entire company were amazing! George sat down with us and explained every detail of the work, and left us with material that gave us an education on Radon itself. This was very helpful for many reasons.. The work itself was conducted in an effective, clean, respectful and thoughtful way by his crew., and he came by to ensure completion and satisfaction. The crew even helped us with something adjacent to their job for no extra charge. I cannot recommend this company enough!"
Response time1 day
76 neighbors recently requested a quote
Recommended by50%of homeowners
Avatar for Healthy Spaces
Healthy Spaces
4.5(
50
)
Radon Gas - Testing

Serving Gorham, NY and surrounding areas

Approved

In business since 2001

Free estimates

Emergency services offered

"Despite the storm or 2017, this company scheduled us within a couple days of the consultation and even with the power outage and heat outage they completed the job within a week. I sold the house the day after they completed the work!!"
Additional Photos
Additional Photos
Additional Photos
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Additional Photos

+22

Response time2 days
Response rate100%
10 neighbors recently requested a quote
Avatar for Certified Radon Systems
Certified Radon Systems
5.0(
35
)
Radon Gas - Abatement

Serving Gorham, NY and surrounding areas

In business since 2007

Free estimates

Credit card accepted

"Scott Bacon of Certified Radon Systems, LLC is the best! If you need radon mitigation, I highly recommend Scott Bacon and Certified Radon Systems, LLC. We saw a mansion for sale in another state online and bought it. Of course, there are lots of things to fix up with the new house, including radon mitigation. Before we even set foot in the house, Scott evaluated the property and set up a mitigation plan. He worked with us remotely, so we didnâ  t have any extra costs of flying out to the new home before we were ready to move. And he installed the equipment on time and without a single problem. Scott also followed up after the install and did some testing to make sure the systems worked properly. The house is enormous, but the cost for the mitigation systems was extremely affordable. Scott Bacon and Certified Radon Systems, LLC were ultra-reliable and did a fantastic job! If you need radon mitigation, use Certified Radon Systems, LLC. Youâ  ll get excellent customer service and peace of mind knowing you are working with professionals to safeguard your home."
Clean exterior
Clean exterior
Suction point
Sump pit
Clean exterior

+2

Response time12 hrs
Response rate85%
Recommended by100%of homeowners
Avatar for Comprehensive Mold Management LLC
Comprehensive Mold Management LLC
4.7(
145
)
Radon Gas - Testing

Serving Gorham, NY and surrounding areas

In business since 2006

Free estimates

Warranties offered

"We are so glad that we selected CMM to do our mold remediation. From the initial meeting with Ken to the actual remediation by Ed and AJ, it was obvious that they are a family owned company who did the job in a caring and professional manner. Ed and AJ were always on time, courteous, informative of each step that they wee taking and at the end described what they did and why. I would highly recommend this company."
Attic Mold Remediation
Attic Mold Remediation
Basement Mold Remediation
Basement Mold Remediation
Additional Photos

+6

Response time1 day
Response rate100%
2 neighbors recently requested a quote
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Radon Detection and Reduction FAQs, answered by experts

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

Yes, many systems include warranties for performance. Confirm terms with your installer.

The cost to replace a radon fan ranges from $300 to $600 for the fan itself, with installation adding an additional $200 to $500. Overall, the total cost for replacement can range from $500 to $1,100, depending on factors such as the fan model, home size, and local labor rates. If the fan is part of a larger radon mitigation system, the price may be higher.

No level of radon is technically safe, but since it is naturally present everywhere, it is impossible to avoid entirely. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking action to reduce radon levels if your home's test results are between 2 and 4 pCi/L or higher.

The Gorham, NY 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.