Top-rated radon gas testers.

Get matched with top radon gas testers in Marlboro, NY

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Find Radon gas testers in Marlboro

Avatar for Next Level Home Inspection & Property Management

Next Level Home Inspection & Property Management

5.00(
7
)
•Approved Pro

Next Level Home Inspection & Property Management

5.00(
7
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
6 years of experience

Next Level Home Inspection and Property Management is dedicated to providing the best possible customer service throughout the Catskills and Hudson Valley areas! Next Level offers the most comprehensive home inspections for buyers, sellers, homeowners, and investors. We know that an educated client is prepared to make an informed decision, and we keep that in mind throughout all of our inspections. We are here to keep things simple and uncomplicated for you.

"Thorough! I walked away feeling empowered with all of the information. I would absolutely recommend them."

Ariana C on September 2020

Next Level Home Inspection and Property Management is dedicated to providing the best possible customer service throughout the Catskills and Hudson Valley areas! Next Level offers the most comprehensive home inspections for buyers, sellers, homeowners, and investors. We know that an educated client is prepared to make an informed decision, and we keep that in mind throughout all of our inspections. We are here to keep things simple and uncomplicated for you.

"Thorough! I walked away feeling empowered with all of the information. I would absolutely recommend them."

Ariana C on September 2020

Avatar for Expediant Environmental Solutions, LLC

Expediant Environmental Solutions, LLC

4.35(
362
)
•Approved Pro

Expediant Environmental Solutions, LLC

4.35(
362
)
•Approved Pro
Customers say: True professional
328 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

"Highly recommend, great work! "

Bill P on October 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

"Highly recommend, great work! "

Bill P on October 2025

Power House Inspection LLC

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro

Power House Inspection LLC

New on HomeAdvisorNew on HomeAdvisor
•Approved Pro
1 years of experience
Free onsite estimate

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

We invite you to experience a tradition of customer satisfaction that will exceed your greatest expectations. Our professionalism and quality workmanship will accurately reflect your taste and lifestyle. From conception to completion, we work with you until the job is done. We are ethical, honest, and easy to communicate with. Call us today you'll be pleased you did. Thank you

Procyon

4.33(
6
)
•Approved Pro

Procyon

4.33(
6
)
•Approved Pro
Customers say: Quick response
181 local quotes requested
11 years of experience

We can offer Mold Testing and Remediation. Water Damage. Smoke Damage. Fire Damage. Our owner is on site for all jobs! Call today we work flawlessly with your insurance company.

"I had a poor experience. I hired this company to do a mold assessment in my apartment. I dealt with the owner. First, he requested cash or check payment only. He made an appointment and did not show up or contact me. I had to call him. In one of the rooms, the pipes above and whatever else the cause of the leak was, had been leaking repeatedly for 40 years, and the plaster constantly replaced. I was worried about mold ABOVE the ceiling on the beams and studs and not just the visible mold on the ceiling plaster and I worried it could be black mold. He did not seem to listen to what I told him and he did not use a water meter to check for saturation or a borescope or any other tools except taking a surface sample and air sample (the borescope and water meter I did not know about until after I had paid him for this inadequate job). He did not mention anything I said in the report. He was also rude and unkind and never provided me with a receipt."

Ellen L on December 2025

We can offer Mold Testing and Remediation. Water Damage. Smoke Damage. Fire Damage. Our owner is on site for all jobs! Call today we work flawlessly with your insurance company.

"I had a poor experience. I hired this company to do a mold assessment in my apartment. I dealt with the owner. First, he requested cash or check payment only. He made an appointment and did not show up or contact me. I had to call him. In one of the rooms, the pipes above and whatever else the cause of the leak was, had been leaking repeatedly for 40 years, and the plaster constantly replaced. I was worried about mold ABOVE the ceiling on the beams and studs and not just the visible mold on the ceiling plaster and I worried it could be black mold. He did not seem to listen to what I told him and he did not use a water meter to check for saturation or a borescope or any other tools except taking a surface sample and air sample (the borescope and water meter I did not know about until after I had paid him for this inadequate job). He did not mention anything I said in the report. He was also rude and unkind and never provided me with a receipt."

Ellen L on December 2025

Oakhill Home Inspections

5.00(
1
)
•Approved Pro

Oakhill Home Inspections

5.00(
1
)
•Approved Pro
Free onsite estimate
Emergency services offered

I pride my company on reliability, great communication, integrity, and quality work. I am an expert in home inspections and I will do my absolute best to keep you as educated and informed on your particular inspection project. I look forward to earning your business! Book with me online or feel free to give me a call today! My focus is protecting your home investment. Thank You, Charles Rauch Oakhill Home Inspections

"good job"

Mike R on November 2025

I pride my company on reliability, great communication, integrity, and quality work. I am an expert in home inspections and I will do my absolute best to keep you as educated and informed on your particular inspection project. I look forward to earning your business! Book with me online or feel free to give me a call today! My focus is protecting your home investment. Thank You, Charles Rauch Oakhill Home Inspections

"good job"

Mike R on November 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
14 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

C.C.M.C

No reviews yet

C.C.M.C

No reviews yet
46 years of experience

Complete Construction and Maintenance Company (C.C.M.C), is a privately owned construction company that specializes in carpentry, remodeling of kitchens,baths, and interiors, property management, and custom home building. Owner and contractor, John Gremer has been in the building business for over 30 years. Some sub-contracting is performed and there are at least four carpenters on hand. Cash and checks only.

Complete Construction and Maintenance Company (C.C.M.C), is a privately owned construction company that specializes in carpentry, remodeling of kitchens,baths, and interiors, property management, and custom home building. Owner and contractor, John Gremer has been in the building business for over 30 years. Some sub-contracting is performed and there are at least four carpenters on hand. Cash and checks only.

Draftless LLC

3.67(
3
)

Draftless LLC

3.67(
3
)
Customers say: Terrific value
22 years of experience

Draftless is a home performance contracting company.We are fully insured and licensced. We are licensced in New York and Conecticut.

Draftless is a home performance contracting company.We are fully insured and licensced. We are licensced in New York and Conecticut.

Avatar for Radon Zapper

Radon Zapper

4.83(
6
)

Radon Zapper

4.83(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Radon Testing and Mitigation. Professional Re-Testing for Litigation. All Work performed by my company - I do NOT use Sub Contractors. Certified By: Nation Radon Safety Board (NRSB) Radon Measurement Specialist (#RMS 8SS0069) Radon Remediation Specialist (#RRS 8G0018) National Environmental Health Association - National Radon Proficiency Program - (NEHA-NRPP) Residential Measurement Provider (#105481RT) Residential Mitigation Provider (#105482RMT) New York State Department of Health - NYSDOH Certified Radon Tester Certified Radon Mitigation Contractor American Association of Radon Scientists and Technologists - (AARST) FREE ESTIMATES. Serving Orange, Ulster, Sullivan, Dutchess, Putnam, Rockland and Westchester Counties.

"The fan on our radon reduction system failed after a number of years. Called Chris at Radon Zapper and he couldn't be better to deal with. He spent some time on the phone with me getting to know the issue and type of system we had. He repaired our system for the quoted price. Great honest professional who we will certainly use in the future. Thanks."

Brian F on January 2020

Radon Testing and Mitigation. Professional Re-Testing for Litigation. All Work performed by my company - I do NOT use Sub Contractors. Certified By: Nation Radon Safety Board (NRSB) Radon Measurement Specialist (#RMS 8SS0069) Radon Remediation Specialist (#RRS 8G0018) National Environmental Health Association - National Radon Proficiency Program - (NEHA-NRPP) Residential Measurement Provider (#105481RT) Residential Mitigation Provider (#105482RMT) New York State Department of Health - NYSDOH Certified Radon Tester Certified Radon Mitigation Contractor American Association of Radon Scientists and Technologists - (AARST) FREE ESTIMATES. Serving Orange, Ulster, Sullivan, Dutchess, Putnam, Rockland and Westchester Counties.

"The fan on our radon reduction system failed after a number of years. Called Chris at Radon Zapper and he couldn't be better to deal with. He spent some time on the phone with me getting to know the issue and type of system we had. He repaired our system for the quoted price. Great honest professional who we will certainly use in the future. Thanks."

Brian F on January 2020

Avatar for Peter H Lazier

Peter H Lazier

4.80(
5
)

Peter H Lazier

4.80(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

As licensed appraisers and home inspectors, we possess the comprehensive education and credentials to provide the type of credible property value opinions that home buyers, banks and top lending institutions require for mortgages. With years of experience that only comes with doing the job, we're prepared to handle a variety of property types. Our investment in technology results in faster appraisals for you and lower costs for everybody. And first and foremost, we know the importance of personalized customer service. We treat our customers as we'd want to be treated ourselves whether we're in person, on the phone or sending e-mail. It all adds up to simply the best possible experience for our customers. Let us prove to you the difference. Call us today. https://www.lazierappraisalandhomeinspections.com/

"Arrived on time, very thorough inspection, did not rush. Shared feedback on critical areas for repair and service. Delivered inspection report same day! Great price. Highly recommend."

Brian B on June 2020

As licensed appraisers and home inspectors, we possess the comprehensive education and credentials to provide the type of credible property value opinions that home buyers, banks and top lending institutions require for mortgages. With years of experience that only comes with doing the job, we're prepared to handle a variety of property types. Our investment in technology results in faster appraisals for you and lower costs for everybody. And first and foremost, we know the importance of personalized customer service. We treat our customers as we'd want to be treated ourselves whether we're in person, on the phone or sending e-mail. It all adds up to simply the best possible experience for our customers. Let us prove to you the difference. Call us today. https://www.lazierappraisalandhomeinspections.com/

"Arrived on time, very thorough inspection, did not rush. Shared feedback on critical areas for repair and service. Delivered inspection report same day! Great price. Highly recommend."

Brian B on June 2020

...
Showing 1-10 of 95
FAQs for radon gas testing projects in Marlboro, 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 Marlboro, 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