Top-rated radon gas testers.

Get matched with top radon gas testers in Trenton, NJ

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 Trenton

Avatar for Aerotek Environmental

Aerotek Environmental

3111 Route 38, #11, Suite 291
4.96(
72
)
•Approved Pro

Aerotek Environmental

3111 Route 38, #11, Suite 291
4.96(
72
)
•Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
73 local quotes requested

Our mission is to provide a full service qualitative approach to indoor air quality and microbial concerns by coordinating the investigation, remedial design and application elements of each project. We are committed to achieve leadership and excellence in providing high quality microbial assessment, investigation and certified mold remediation services throughout NJ, PA, & DE. We believe this can be accomplished by recognizing and meeting our essential responsibilities to our clients, employees, suppliers, and the community. Our approach allows us to provide our clients cleaner and healthier living by utilizing practical experience, technical excellence, and client responsiveness.

"I needed to have a mold issue addressed in my condo which had developed due to a leak in the roof. I contacted Aerotek Environmental having received their contact details from Angi Ads. From my first contact with Brandon of Aerotek Environmental he was the most helpful of all that I had spoken to about my issue. In addition to giving a reasonable cost estimate, Brandon took the time to carefully explain the step by step remediation process that his company would provide which included digital photos before, during and on completion of work. Having decided to use Aerotech the process ran very smoothly from setting the schedule date through the actual work and payment for services. Communication with Brandon was excellent - If I called or sent a text Brandon would either promptly answer or respond in a very short time. On the scheduled day, Felix Castro (job foreman) and his team arrived on time. Felix explained in detail exactly what he and his team would be doing. On completion of the work, Felix ensured that all debris was removed and provided full details as to what had been done and what he and his team found to be the most likely area of the leak. I am very satisfied with the entire process of working with Brandon who along with Felix and his team provided excellent customer service and would not hesitate to call in again should the need arise. I would highly recommend Brian and Aerotek Environmental to anyone in need of mold remediation services"

Jim P on October 2024

Our mission is to provide a full service qualitative approach to indoor air quality and microbial concerns by coordinating the investigation, remedial design and application elements of each project. We are committed to achieve leadership and excellence in providing high quality microbial assessment, investigation and certified mold remediation services throughout NJ, PA, & DE. We believe this can be accomplished by recognizing and meeting our essential responsibilities to our clients, employees, suppliers, and the community. Our approach allows us to provide our clients cleaner and healthier living by utilizing practical experience, technical excellence, and client responsiveness.

"I needed to have a mold issue addressed in my condo which had developed due to a leak in the roof. I contacted Aerotek Environmental having received their contact details from Angi Ads. From my first contact with Brandon of Aerotek Environmental he was the most helpful of all that I had spoken to about my issue. In addition to giving a reasonable cost estimate, Brandon took the time to carefully explain the step by step remediation process that his company would provide which included digital photos before, during and on completion of work. Having decided to use Aerotech the process ran very smoothly from setting the schedule date through the actual work and payment for services. Communication with Brandon was excellent - If I called or sent a text Brandon would either promptly answer or respond in a very short time. On the scheduled day, Felix Castro (job foreman) and his team arrived on time. Felix explained in detail exactly what he and his team would be doing. On completion of the work, Felix ensured that all debris was removed and provided full details as to what had been done and what he and his team found to be the most likely area of the leak. I am very satisfied with the entire process of working with Brandon who along with Felix and his team provided excellent customer service and would not hesitate to call in again should the need arise. I would highly recommend Brian and Aerotek Environmental to anyone in need of mold remediation services"

Jim P on October 2024

Avatar for Certified Environmental Contractors, LLC

Certified Environmental Contractors, LLC

918 State Hwy 33 #2
4.79(
14
)
•Approved Pro

Certified Environmental Contractors, LLC

918 State Hwy 33 #2
4.79(
14
)
•Approved Pro
Customers say: Quick response
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
21 years of experience

Certified Environmental Contractors, LLC, proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are quite possibly the only company that is licensed for Oil Tanks, Mold and Radon Testing and Mitigation in NJ. We are TRUE ONE STOP SHOPPING! We are locally owned and operated. Give us a call today!

"Came early finished early and everything has gone well so far."

Therese D on May 2020

Certified Environmental Contractors, LLC, proudly serves its customers with pride, integrity and attention to the details that matter most to you. This is one of the many things that sets us apart from the rest. We are quite possibly the only company that is licensed for Oil Tanks, Mold and Radon Testing and Mitigation in NJ. We are TRUE ONE STOP SHOPPING! We are locally owned and operated. Give us a call today!

"Came early finished early and everything has gone well so far."

Therese D on May 2020

Avatar for AMS Restoration/American Mold Solutions LLC

AMS Restoration/American Mold Solutions LLC

405 Dunhams Corner Rd
4.79(
57
)
•Approved Pro

AMS Restoration/American Mold Solutions LLC

405 Dunhams Corner Rd
4.79(
57
)
•Approved Pro
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
180 local quotes requested

Our services include Mold Testing, Remediation and Water Extraction as well as Air Duct Cleaning and Sanitizing. We have more than thirty years experience in the building industry. We are capable of repairing any damage caused by mold, water, fire or the remediation itself. We have full compliment of licensed sub- contractors, Electric, Plumbing, Masons etc. Servicing all of New Jersey.

"AMS is our HERO. The city sewer backed up and filled one third of our basement just before kickoff on Super Bowl Sunday. By halftime George had arrived. He calmly assessed the situation, and set up a time to return the following morning. His workers were polite, professional, and meticulous, and did an unbelievable job of cleaning up a horrible mess. By the end of the day the damaged items, sewage , and much of the smell was gone. Huge fans and a germ-killing ionizer ran for three days. When they were finished the floor was bone dry and absolutely clean. It occurred to us that the floor could not have been better cleaned if it were being prepped for painting. So we will be doing so. AMS has innate integrity and a wealth of knowledge across a wide spectrum. Any project can be entrusted to their competent hands. Chester and Jean Lehmann"

Jean L on February 2022

Our services include Mold Testing, Remediation and Water Extraction as well as Air Duct Cleaning and Sanitizing. We have more than thirty years experience in the building industry. We are capable of repairing any damage caused by mold, water, fire or the remediation itself. We have full compliment of licensed sub- contractors, Electric, Plumbing, Masons etc. Servicing all of New Jersey.

"AMS is our HERO. The city sewer backed up and filled one third of our basement just before kickoff on Super Bowl Sunday. By halftime George had arrived. He calmly assessed the situation, and set up a time to return the following morning. His workers were polite, professional, and meticulous, and did an unbelievable job of cleaning up a horrible mess. By the end of the day the damaged items, sewage , and much of the smell was gone. Huge fans and a germ-killing ionizer ran for three days. When they were finished the floor was bone dry and absolutely clean. It occurred to us that the floor could not have been better cleaned if it were being prepped for painting. So we will be doing so. AMS has innate integrity and a wealth of knowledge across a wide spectrum. Any project can be entrusted to their competent hands. Chester and Jean Lehmann"

Jean L on February 2022

Avatar for Quality Home Inspection Services LLC

Quality Home Inspection Services LLC

1112 27th St
4.76(
17
)
•Approved Pro

Quality Home Inspection Services LLC

1112 27th St
4.76(
17
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
19 years of experience

Offering exceptional service and personalized attention, Quality Home Inspection Services LLC, and associates has been serving New Jersey with a wide range of Inspection services for over 25 plus years. Backed by both industry-specific and construction-related knowledge, we offer our client’s an in-depth understanding of the housing inspection industry that exceeds that of any of our competitor’s. By personalizing the inspection needs for your next home or apartment, we look for creative solutions that are sure to meet all of your needs. General Inspections, Home Inspections, Commercial Inspection, Limited Inspections, WDI Inspections, Lead Inspections, Risk Assessments, Sewer Scope Inspections, Radon Inspection, Condo Inspection, Apartment Inspection, Move-out Inspection, Move-In inspection, and more.

"Good job thank you"

Joan Q on October 2023

Offering exceptional service and personalized attention, Quality Home Inspection Services LLC, and associates has been serving New Jersey with a wide range of Inspection services for over 25 plus years. Backed by both industry-specific and construction-related knowledge, we offer our client’s an in-depth understanding of the housing inspection industry that exceeds that of any of our competitor’s. By personalizing the inspection needs for your next home or apartment, we look for creative solutions that are sure to meet all of your needs. General Inspections, Home Inspections, Commercial Inspection, Limited Inspections, WDI Inspections, Lead Inspections, Risk Assessments, Sewer Scope Inspections, Radon Inspection, Condo Inspection, Apartment Inspection, Move-out Inspection, Move-In inspection, and more.

"Good job thank you"

Joan Q on October 2023

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
568 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 Bioclean

Bioclean

13 Summit Ave
5.00(
30
)
•Approved Pro

Bioclean

13 Summit Ave
5.00(
30
)
•Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
196 local quotes requested

24 HR Service for Water, Mold & Fire Damage in the Philadelphia Area. In business since 2003, we are committed to excellence in restoring homes and commercial buildings in the Philadelphia Area. Certifications in Water Restoration by IICRC, Mold Testing & Air Quality Testing. Cleaning services include, Carpet, Area Rugs & HVAC System.

"Tim was great. Punctual, explained the whole process, and was very personable. Would highly recommend!"

Chris Q on November 2024

24 HR Service for Water, Mold & Fire Damage in the Philadelphia Area. In business since 2003, we are committed to excellence in restoring homes and commercial buildings in the Philadelphia Area. Certifications in Water Restoration by IICRC, Mold Testing & Air Quality Testing. Cleaning services include, Carpet, Area Rugs & HVAC System.

"Tim was great. Punctual, explained the whole process, and was very personable. Would highly recommend!"

Chris Q on November 2024

Avatar for Helpful Hands Restoration LLC

Helpful Hands Restoration LLC

Anderson Street
5.00(
12
)
•Approved Pro

Helpful Hands Restoration LLC

Anderson Street
5.00(
12
)
•Approved Pro
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
279 local quotes requested

WE GET YOUR HOME BACK TO NORMAL - FAST! OWNED AND OPERATED BY A LICENCED INSURANCE ADJUSTER TO HELP YOU GET THE BIGGEST INSURANCE SETTLEMENT POSSIBLE! At some point your home may require repairs and restoration from sudden and accidental water damage, mold from water, and/or fire/smoke damages. Let us walk you through the best options to remedy your damage, once you feel comfortable with the process, we'll handle the demolition, reconstruction, and even the interactions with the insurance company. Call now to book a free consultation, or use the link on this page!

"Rodger did a great job. Saved my wood garage door which was rotted at the bottom. I should get many more years of use from this fix. The door was over 45 years old. Happy it turned out well."

Tyna L on October 2024

WE GET YOUR HOME BACK TO NORMAL - FAST! OWNED AND OPERATED BY A LICENCED INSURANCE ADJUSTER TO HELP YOU GET THE BIGGEST INSURANCE SETTLEMENT POSSIBLE! At some point your home may require repairs and restoration from sudden and accidental water damage, mold from water, and/or fire/smoke damages. Let us walk you through the best options to remedy your damage, once you feel comfortable with the process, we'll handle the demolition, reconstruction, and even the interactions with the insurance company. Call now to book a free consultation, or use the link on this page!

"Rodger did a great job. Saved my wood garage door which was rotted at the bottom. I should get many more years of use from this fix. The door was over 45 years old. Happy it turned out well."

Tyna L on October 2024

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
4555 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

Avatar for AmeriSpec Home Inspection Services

AmeriSpec Home Inspection Services

19 Marter Ave.
5.00(
5
)

AmeriSpec Home Inspection Services

19 Marter Ave.
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Welcome to AmeriSpec Home Inspection Services NJ. We'll give you the most thorough inspection possible, using the most cutting edge technology available. Our infrared (IR) camera can uncover and "see" what the ordinary eye cannot. This separates us from our competition, and we're extremely proud to offer the service. Buying a home is the largest single investment you will ever make. A professional AmeriSpec Home Inspection guarantees you peace of mind throughout the process. You can't put a price tag on the knowledge you will gain by uncovering the hidden safety hazards and potential pitfalls awaiting you in your new home. No home is perfect, but our inspection will point out both the benefits and weaknesses so that you can feel confident about your decision. We also offer a 90 Day Warranty + Water/Sewer, Mold and Roof Protection with every inspection. www.amerispecnj.net

"The service was great and on point. They were very easy to talk to and easy to pay, They were down-to-earth people."

Stanley M on February 2022

Welcome to AmeriSpec Home Inspection Services NJ. We'll give you the most thorough inspection possible, using the most cutting edge technology available. Our infrared (IR) camera can uncover and "see" what the ordinary eye cannot. This separates us from our competition, and we're extremely proud to offer the service. Buying a home is the largest single investment you will ever make. A professional AmeriSpec Home Inspection guarantees you peace of mind throughout the process. You can't put a price tag on the knowledge you will gain by uncovering the hidden safety hazards and potential pitfalls awaiting you in your new home. No home is perfect, but our inspection will point out both the benefits and weaknesses so that you can feel confident about your decision. We also offer a 90 Day Warranty + Water/Sewer, Mold and Roof Protection with every inspection. www.amerispecnj.net

"The service was great and on point. They were very easy to talk to and easy to pay, They were down-to-earth people."

Stanley M on February 2022

Avatar for Termi Guard Services & Fenwick

Termi Guard Services & Fenwick

420 Kelley Drive
4.57(
42
)

Termi Guard Services & Fenwick

420 Kelley Drive
4.57(
42
)
Customers say: True professional
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers

We’re Jim and Mike Allen, brothers and co-owners of TermiGuard Services and Fenwick Building & Renovation. With our 50+ years of combined experience, we can promise you that you're in good hands. One of the biggest challenges we face as homeowners is finding the right contractor to deal with issues which arise – one who has the requisite knowledge, skills, and experience. A contractor who will answer your calls and then do what they say they’d do, when they said they would. A contractor you can trust, and who will actually give you a no-nonsense warranty on his/her work. We’ve built TermiGuard Services & Fenwick to be effectively different from the rest – embracing and living the principles and values we grew up with – treating people the way we’d want to be treated. And frankly, we’re tired of how so many other companies treat customer service as unimportant and how they take customers for granted. As consumers ourselves, we’ve felt the pain from the evident lack of caring and regard for the concept of old-fashioned, customer-centered service. To that end, we offer you a family of home services including, real estate repairs, pest, termite & wildlife control, water intrusion inspections, mold treatment, waterproofing, structural & foundation repairs, property & water damage restoration, and crawl space encapsulation services – to name just a few… Bottom line – we’re first aid for your home or building, and we’re dedicated to providing you healthier living…

"Very dissatisfied with my service and lack of professionalism. Will not be recommending or reusing this company again."

dayna c on March 2025

We’re Jim and Mike Allen, brothers and co-owners of TermiGuard Services and Fenwick Building & Renovation. With our 50+ years of combined experience, we can promise you that you're in good hands. One of the biggest challenges we face as homeowners is finding the right contractor to deal with issues which arise – one who has the requisite knowledge, skills, and experience. A contractor who will answer your calls and then do what they say they’d do, when they said they would. A contractor you can trust, and who will actually give you a no-nonsense warranty on his/her work. We’ve built TermiGuard Services & Fenwick to be effectively different from the rest – embracing and living the principles and values we grew up with – treating people the way we’d want to be treated. And frankly, we’re tired of how so many other companies treat customer service as unimportant and how they take customers for granted. As consumers ourselves, we’ve felt the pain from the evident lack of caring and regard for the concept of old-fashioned, customer-centered service. To that end, we offer you a family of home services including, real estate repairs, pest, termite & wildlife control, water intrusion inspections, mold treatment, waterproofing, structural & foundation repairs, property & water damage restoration, and crawl space encapsulation services – to name just a few… Bottom line – we’re first aid for your home or building, and we’re dedicated to providing you healthier living…

"Very dissatisfied with my service and lack of professionalism. Will not be recommending or reusing this company again."

dayna c on March 2025

...
Showing 1-10 of 464
FAQs for radon gas testing projects in Trenton, NJ

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 Trenton, NJ 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