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Top-Rated Radon gas abatement pros in Millwood - Updated Nov 2026

Avatar for Lance Dorfi, LLC
Lance Dorfi, LLC
4.7(
64
)
Radon Gas - Abatement

Serving Millwood, NY and surrounding areas

Approved

In business since 2010

Free estimates

Emergency services offered

"Lance Dorfi was incredibly professional and efficient. They responded to my emails quickly and the installation of the radon mitigation system was done within 3 hours and has reduced our radon level significantly. I would absolutely recommend them!"
Job Site
Response time2 days
20 neighbors recently requested a quote
Recommended by96%of homeowners
Avatar for Supra Inspections
Supra Inspections
4.8(
9
)
Radon Gas - Abatement

Serving Millwood, NY and surrounding areas

In business since 2017

Credit card accepted

"Very pleased, not only because the professional services, but also truely fully insured business. Many contractors only carry liability insurance, which might be the minimum requirement to be listed in HomeAdvisor, but in real world, it's necessary to have Worker's comp and E&O. I'm very glad Supra has them all, and send me the copy of the certificate insurance before doing the job. Highly recommended."
Brooklyn Inspection
Electrical
Old thermostat
Exterior
Basement

+2

Response time1 day
Recommended by100%of homeowners
Avatar for All States Air Duct Pro
All States Air Duct Pro
3.1(
236
)
Radon Gas - Abatement

Serving Millwood, NY and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"

This was a big deal purchase. We probably did not need the service, so it was not a good value. To my knowledge they did the service correctly. Our ducts were not dirty. My wife thought they were worse than they were.

"
Before & After Air Duct Cleaning
Recommended by49%of homeowners
Avatar for Expediant Environmental Solutions, LLC
Expediant Environmental Solutions, LLC
3.8(
408
)
Radon Gas - Abatement

Serving Millwood, NY and surrounding areas

In business since 1995

Free estimates

Emergency services offered

"Not the cheapest, not the most expensive but for the cost my crawl space was cleaned of mold and humidifier installed. Andre is a good salesman and PM."
various
various
various
various
various

+5

Response time1 day
51 neighbors recently requested a quote
Recommended by88%of homeowners
Avatar for Go Green Express Home Services
Go Green Express Home Services
3.4(
81
)
Radon Gas - Abatement

Serving Millwood, NY and surrounding areas

In business since 1977

Emergency services offered

Credit card accepted

"

The tech, Jared was very professional and knowledgeable. He explained some issues with the furnace and did not recommend putting the money into it to fix at this point as the furnace is old but safe and is in working order. He did suggest to replace the furnace in a about a year rather than put 1,000 into it at this point. The furnace is not running efficiently and we know it has not been for quite a while.

Purchasing this house 18 years ago and the furnace being older already , we knew it would have to be replaced eventually.

We are very happy with the service we received and would recommend this company.  




"
Recommended by58%of homeowners
Avatar for Marino's Waterworks
Marino's Waterworks
3.8(
9
)
Radon Gas - Abatement

Serving Millwood, NY and surrounding areas

In business since 1969

Free estimates

Emergency services offered

"Marino's Water Works was great on a crazy snowy Saturday afternoon (3 feet of snow on the ground, more coming down) when our water pump stopped working. Answered our call immediately, arrived at our house within an hour, fixed the problem (a lightning strike had incapacitated the pump, requiring soldering wires and then flipping the circuit breakers). What a relief! Getting out of our driveway proved a terrible challenge -- ice and snow on a sloping curve -- but we figured it out together with a tremendous amount of good humor and calm. We recommend them HIGHLY."
Recommended by100%of homeowners
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FAQs for radon gas abatement projects in Millwood, NY

The only way to know whether your home or water supply contains radon is to schedule a professional test. A qualified radon inspector will collect samples, deliver lab-verified results, and explain the findings for $150 to $800. Once you know your exact levels, you and your radon mitigation pro can choose the right system and tackle the problem before it affects your family’s health.

Both roles tackle radon, but they focus on different steps. Inspectors test your home, interpret the results, and determine whether levels exceed EPA guidelines. Mitigation pros design and install the system that lowers those levels. Some companies do both, but the skills and equipment differ, so always verify that the person you hire is properly certified for the specific service you need.

Installing a mitigation unit fixes radon problems by reducing indoor gas levels to established safe standards. A system designed and installed by a mitigation expert, tailored to your home's specific layout and foundation, guarantees effective radon reduction. This expert installation ensures consistent performance over time while safeguarding your indoor air quality.

Open windows and doors do not reduce radon levels because they trigger a pressure imbalance that draws radon-laden air into your home. This practice fails to control radon concentration and can even worsen the issue. An active suction mitigation system provides a proven, safe, and effective solution to reliably reduce radon levels.

Radon mitigation systems generally last between 10 and 30 years, depending on system type and maintenance. Passive systems endure the longest because they have no moving parts, whereas active systems, which use a fan, require fan replacement every 5 to 10 years. System components, such as PVC pipes, seals, and fittings, can remain effective for decades when paired with periodic inspections and proper maintenance.

Radon mitigation systems consume between 300 and 3,000 kWh of electricity per year, depending on fan size and system design. On average, an active radon fan draws 100 to 300 watts continuously, which translates to roughly 876 kWh annually, and adds $30 to $300 to your energy bill each year. Choosing a high-efficiency fan and ensuring tight sealing around pipes helps minimize these ongoing costs.

The Millwood, NY homeowners’ guide to radon gas abatements

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