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Radon gas testers in Windham

Avatar for Expediant Environmental Solutions, LLC

Expediant Environmental Solutions, LLC

3657 Albany Post Road
4.34(
361
)
•Approved Pro

Expediant Environmental Solutions, LLC

3657 Albany Post Road
4.34(
361
)
•Approved Pro
Customers say: True professional
296 local quotes requested
30 years of experience

Expediant Environmental is committed to excellence and continues to be an outstanding business with over 25 years of experience. Our company prides itself on an outstanding record of quality service. We specialize in your whole home as a system approach. So when it comes to mold removal, insulation, or waterproofing we never forget to make sure it does not have a negative effect on another function of your home. Wet Crawl Space? Expediant offers CleanSpace encapsulation system to control moisture and dampness in the crawl space. We are an authorized Contractor Nation installer. Radon problem? That's no problem for us. Got bed bugs or rodents? We can make them disappear! Expediant offers a wide variety of services to meet all your pest control needs from preventative maintenance to treatment of active problems. See our website! www.Expedianthomesolutions.com

"Great job, they replaced the sump pump and did a good job. "

Ramon R on September 2025

Expediant Environmental is committed to excellence and continues to be an outstanding business with over 25 years of experience. Our company prides itself on an outstanding record of quality service. We specialize in your whole home as a system approach. So when it comes to mold removal, insulation, or waterproofing we never forget to make sure it does not have a negative effect on another function of your home. Wet Crawl Space? Expediant offers CleanSpace encapsulation system to control moisture and dampness in the crawl space. We are an authorized Contractor Nation installer. Radon problem? That's no problem for us. Got bed bugs or rodents? We can make them disappear! Expediant offers a wide variety of services to meet all your pest control needs from preventative maintenance to treatment of active problems. See our website! www.Expedianthomesolutions.com

"Great job, they replaced the sump pump and did a good job. "

Ramon R on September 2025

Earth Safe, LLC

340 Cooksboro Road
4.20(
5
)
•Approved Pro

Earth Safe, LLC

340 Cooksboro Road
4.20(
5
)
•Approved Pro
Customers say: Quick response
15 local quotes requested
16 years of experience

Earth Safe Environmental LLC has been specializing in indoor air quality correction with regard to the presence of mold and/or radon, including Residential & Commercial Services, in the Capital Region for over 15 years! We are a preferred vendor for our real estate partners representing buyers and seller, residential consumers, and local businessess as we are courteous, timely, our work is licensed and insured, ecocomically priced, scheduled promptly, and final warranties are issued for all our services! We provide free consulations for all our customers wether you are concerned about air quality and require testing or are ready for your radon mitgation system or mold remedation to take place urgently. We look forward to your call with any questions or to schedule a visit! We are excited to announce our residential and business cleaning division as well as gutter installation!! Give us a call ! Janet Janet Herter Owner, EARTHSAFE ENVIRONMENTAL LLC 518-860-8756

"They were reasonably priced but I'd recommend skipping and saving yourself the heartache. I was having issues with the radon mitigation system they installed. After a few days of calling and leaving messages I had no response. Then we finally figured out when they installed the system it only received power when the light switch was on...instead of wiring it to run all the time. Still no response back from them and I am paying to fix the issue myself. Do not go with them."

Michael S on April 2025

Earth Safe Environmental LLC has been specializing in indoor air quality correction with regard to the presence of mold and/or radon, including Residential & Commercial Services, in the Capital Region for over 15 years! We are a preferred vendor for our real estate partners representing buyers and seller, residential consumers, and local businessess as we are courteous, timely, our work is licensed and insured, ecocomically priced, scheduled promptly, and final warranties are issued for all our services! We provide free consulations for all our customers wether you are concerned about air quality and require testing or are ready for your radon mitgation system or mold remedation to take place urgently. We look forward to your call with any questions or to schedule a visit! We are excited to announce our residential and business cleaning division as well as gutter installation!! Give us a call ! Janet Janet Herter Owner, EARTHSAFE ENVIRONMENTAL LLC 518-860-8756

"They were reasonably priced but I'd recommend skipping and saving yourself the heartache. I was having issues with the radon mitigation system they installed. After a few days of calling and leaving messages I had no response. Then we finally figured out when they installed the system it only received power when the light switch was on...instead of wiring it to run all the time. Still no response back from them and I am paying to fix the issue myself. Do not go with them."

Michael S on April 2025

Qualtek Testing Group, LLC

.
5.00(
1
)
•Approved Pro

Qualtek Testing Group, LLC

.
5.00(
1
)
•Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
54 local quotes requested

At our company, your satisfaction is our top priority. We are committed to completing every job to the highest standards, ensuring exceptional quality and service. Discover our range of services and reach out today to book your free estimate. Let us show you the difference our dedication can make!

"The Best around!!!"

Joe S on October 2024

At our company, your satisfaction is our top priority. We are committed to completing every job to the highest standards, ensuring exceptional quality and service. Discover our range of services and reach out today to book your free estimate. Let us show you the difference our dedication can make!

"The Best around!!!"

Joe S on October 2024

Avatar for Tri State Flood Inc

Tri State Flood Inc

10 Grant Ave W
2.00(
1
)
•Approved Pro

Tri State Flood Inc

10 Grant Ave W
2.00(
1
)
•Approved Pro
1796 local quotes requested
21 years of experience

At Tri State Flood Inc, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025

At Tri State Flood Inc, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025

Avatar for Radon Shield LLC

Radon Shield LLC

757 Beatty St
4.85(
97
)
•Approved Pro

Radon Shield LLC

757 Beatty St
4.85(
97
)
•Approved Pro
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
5005 local quotes requested

Radon Shield, LLC is your premier choice for Radon testing and mitigations in New Jersey, New York, and Pennsylvania . We provide high quality work and friendly customer service.You do not need to overpay to get Radon out, We can help. Call today for Professional service you can afford! Our team of professionals include New Jersey certified Radon mitigation specialist(#MIS13009) and Pennsylvania certified Radon mitigation professional(#3055). We are fully insured. Additional email: info@radonshieldllc.com

"Benedict was able to schedule me quickly for remediation. He put my mind at ease. They worked quickly and the space was spotless when they were done. He explained every step and the system in place has really done the job. He has been a pleasure to work with."

Sandra J on November 2024

Radon Shield, LLC is your premier choice for Radon testing and mitigations in New Jersey, New York, and Pennsylvania . We provide high quality work and friendly customer service.You do not need to overpay to get Radon out, We can help. Call today for Professional service you can afford! Our team of professionals include New Jersey certified Radon mitigation specialist(#MIS13009) and Pennsylvania certified Radon mitigation professional(#3055). We are fully insured. Additional email: info@radonshieldllc.com

"Benedict was able to schedule me quickly for remediation. He put my mind at ease. They worked quickly and the space was spotless when they were done. He explained every step and the system in place has really done the job. He has been a pleasure to work with."

Sandra J on November 2024

To The Max Corp.

Po Box 64
No reviews yet

To The Max Corp.

Po Box 64
No reviews yet
27 years of experience

General Contractor (GC) Let me be your eyes and ears on your next project. Can supervise all aspects of construction, over 20 years experience. I will save you money.

General Contractor (GC) Let me be your eyes and ears on your next project. Can supervise all aspects of construction, over 20 years experience. I will save you money.

The Radon Pros

101 Hill St
No reviews yet

The Radon Pros

101 Hill St
No reviews yet

We are a full service certified radon measurement and mitigation installation company based out of Greene County, New York. Our affordable & professional services bring radon safety into any home.

We are a full service certified radon measurement and mitigation installation company based out of Greene County, New York. Our affordable & professional services bring radon safety into any home.

H&H Environmental Construction & Consulting

58 Old Powder Mill Rd
4.20(
5
)

H&H Environmental Construction & Consulting

58 Old Powder Mill Rd
4.20(
5
)
Customers say: Quick response
20 years of experience

Having completed thousands of mold inspections and mold remediations in New York and beyond, our professional staff is experienced in handling projects ranging from small residential homes to corporate, commercial and industrial facilities. Not only do we provide mold removal services in New York, but we also serve New Jersey, Connecticut, Pennsylvania and Massachusetts. H&H Environmental professionals are all highly trained experts: not just in industrial hygiene, but also in the fields of water mitigation and building science. We use top-of-the-line, environmentally friendly cleaning products. Call us today at 888-250-6653 for a free consultation!

Having completed thousands of mold inspections and mold remediations in New York and beyond, our professional staff is experienced in handling projects ranging from small residential homes to corporate, commercial and industrial facilities. Not only do we provide mold removal services in New York, but we also serve New Jersey, Connecticut, Pennsylvania and Massachusetts. H&H Environmental professionals are all highly trained experts: not just in industrial hygiene, but also in the fields of water mitigation and building science. We use top-of-the-line, environmentally friendly cleaning products. Call us today at 888-250-6653 for a free consultation!

Moldlab

2501 Mayes Road
4.66(
401
)

Moldlab

2501 Mayes Road
4.66(
401
)
Customers say: True professional
25 years of experience

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018

Global Plasma Solutions

10 Mall Terrace
5.00(
1
)

Global Plasma Solutions

10 Mall Terrace
5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

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FAQs for radon gas testing projects in Windham, NY

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Windham, NY homeowners’ guide to radon gas testings

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

See all articles