Top-rated radon gas testers.

Get matched with top radon gas testers in Dover, PA

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.

Radon gas testers in Dover

Avatar for C&S Home Inspections

C&S Home Inspections

69 Million Dollar Rd.
4.91(
50
)
•
Approved Pro

C&S Home Inspections

69 Million Dollar Rd.
4.91(
50
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 local quotes requested

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Radon was over 6, now it's under 1. Job was done quickly."

Danielle L on April 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"Radon was over 6, now it's under 1. Job was done quickly."

Danielle L on April 2025

Avatar for The Radon Bros LLC

The Radon Bros LLC

2522 Deep Creek Rd
4.86(
11
)
•
Approved Pro

The Radon Bros LLC

2522 Deep Creek Rd
4.86(
11
)
•
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
194 local quotes requested

The Radon Bros LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"They didn't clean up, but it was a basement."

Dan K on May 2025

The Radon Bros LLC is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests and make their concerns the basis of our business.

"They didn't clean up, but it was a basement."

Dan K on May 2025

Avatar for The Radon Bros

The Radon Bros

5.00(
4
)
•
Approved Pro

The Radon Bros

5.00(
4
)
•
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
565 local quotes requested

The Radon Bros is a certified provider specializing in radon testing, mitigation, and system repairs for homes, businesses, and schools across Pennsylvania, Delaware, and Maryland. They also offer mold testing and comprehensive indoor air quality assessments to ensure safer living and working environments. The company provides tailored solutions, including radon system installation and expert consultations for contractors, with a commitment to safety, health, and air quality.

"Went well"

Kenneth H on July 2025

The Radon Bros is a certified provider specializing in radon testing, mitigation, and system repairs for homes, businesses, and schools across Pennsylvania, Delaware, and Maryland. They also offer mold testing and comprehensive indoor air quality assessments to ensure safer living and working environments. The company provides tailored solutions, including radon system installation and expert consultations for contractors, with a commitment to safety, health, and air quality.

"Went well"

Kenneth H on July 2025

Wilbur Hull Nano Cleaning Solutions, LLC

308 South Fayette St
4.93(
14
)
•
Approved Pro

Wilbur Hull Nano Cleaning Solutions, LLC

308 South Fayette St
4.93(
14
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
337 local quotes requested

Professional Mold remediation services at affordable prices! We have the experience and dedication to get the job done right! Specializing in Mold Testing and Remediation services, we guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule a free estimate today!

"Will (owner) was very prompt in responding to my questions. I decided to proceed directly to treatment (skip testing) due to a prior mold problem in basement. Because he had an opening in his schedule that week, I decided to take care of the treatment right away. His team was very polite and professional and answered all of my questions. It took only about an hour to treat my entire house. Very happy with the service I received."

Nora W on July 2025

Professional Mold remediation services at affordable prices! We have the experience and dedication to get the job done right! Specializing in Mold Testing and Remediation services, we guarantee your satisfaction, and we won't leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Call or click to schedule a free estimate today!

"Will (owner) was very prompt in responding to my questions. I decided to proceed directly to treatment (skip testing) due to a prior mold problem in basement. Because he had an opening in his schedule that week, I decided to take care of the treatment right away. His team was very polite and professional and answered all of my questions. It took only about an hour to treat my entire house. Very happy with the service I received."

Nora W on July 2025

Avatar for Oak Leaf Environmental

Oak Leaf Environmental

409 S Pennsylvania Ave
New on HomeAdvisorNew on HomeAdvisor•
Approved Pro

Oak Leaf Environmental

409 S Pennsylvania Ave
New on HomeAdvisorNew on HomeAdvisor•
Approved Pro
958 local quotes requested
Free onsite estimate

If you're a property owner seeking peace of mind regarding mold, asbestos, lead, radon, or air quality issues, the skilled environmental team at Oak Leaf Environmental is here to assist you. We offer a comprehensive range of services designed to keep your home or business environment healthy, allowing you to focus on the well-being of everyone inside.

If you're a property owner seeking peace of mind regarding mold, asbestos, lead, radon, or air quality issues, the skilled environmental team at Oak Leaf Environmental is here to assist you. We offer a comprehensive range of services designed to keep your home or business environment healthy, allowing you to focus on the well-being of everyone inside.

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
2061 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
5022 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

Ebright Engineering

348 Sunnyside Ln
No reviews

Ebright Engineering

348 Sunnyside Ln
No reviews
Free onsite estimate

Independent Mold Inspection and Testing. Got mold? Got musty smell? Feel sick? You may consider calling an independent mold inspector who is not interested in selling you more than $10,000 worth of remediation. We are offering you a certified professional and independent opinion, inspection, testing and reporting regarding your mold problem. We work 7 days a week at any time convenient for you. Do not delay the inspection if you suffer from an allergy, asthma, sick building syndrome (SDS), acute respiratory infection or your immune system is weakened. Call, text or e-mail us.

Independent Mold Inspection and Testing. Got mold? Got musty smell? Feel sick? You may consider calling an independent mold inspector who is not interested in selling you more than $10,000 worth of remediation. We are offering you a certified professional and independent opinion, inspection, testing and reporting regarding your mold problem. We work 7 days a week at any time convenient for you. Do not delay the inspection if you suffer from an allergy, asthma, sick building syndrome (SDS), acute respiratory infection or your immune system is weakened. Call, text or e-mail us.

Jardine's Restoration and Painting LLC

4703 Enola Rd
4.43(
7
)

Jardine's Restoration and Painting LLC

4703 Enola Rd
4.43(
7
)
Customers say: Quick response
34 years of experience

Contractor. With our technical know-how, specifications understanding, and the meticulous care and craftsmanship required to preserve and protect the historical structure. Our additional capabilities such as Lead Paint Preparation and excellent safety record will add to the success of your project. Additional area - Duncanon, Mechaniscburg, & Hershey,

Contractor. With our technical know-how, specifications understanding, and the meticulous care and craftsmanship required to preserve and protect the historical structure. Our additional capabilities such as Lead Paint Preparation and excellent safety record will add to the success of your project. Additional area - Duncanon, Mechaniscburg, & Hershey,

All Aspects Waterproofing of CPA LLC

8735 Bollman Place
5.00(
5
)

All Aspects Waterproofing of CPA LLC

8735 Bollman Place
5.00(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Alternate website: www.mywetbasement.com.

Alternate website: www.mywetbasement.com.

...
Showing 1-10 of 117

FAQs for radon gas testing projects in Dover, PA

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 Dover, PA 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
professional testing the air quality in a home
Apr 14, 2025
Apr 14, 2025
Budget for the cost of an indoor air quality test based on factors such as home size, pollutant type, potential remediation needs, labor, and more.
professional removing mold damaged wallpaper from home
Apr 25, 2025
Apr 25, 2025
Budget for mold inspection costs based on factors such as the size of your home, testing type, mold type, location, accessibility, and more.
professional testing for toxic lead in home
Apr 26, 2025
Apr 26, 2025
Budget for lead paint inspection costs based on factors such as home size, location, home condition, repairs and removal, additional tests, and more.
professional in protective suit removing asbestos from attic of home
Robert Tschudi - Author/Reviewer
•
Apr 25, 2025
Apr 25, 2025
Concerned about asbestos in your home? Learn how to identify, manage, and safely remove this hazardous material with expert guidance on abatement methods, regulations, and best practices.
Two professionals removing asbestos from a roof
Apr 26, 2025
Apr 26, 2025
Asbestos testing costs depend on the size of your home, its condition, and your location. This test ensures your home is safe from this hazardous material.
Professional in protective suit removing mold from home
Robert Tschudi - Author/Reviewer
•
Jun 24, 2025
Jun 24, 2025
Budget for mold remediation costs based on factors such as severity, location in the home, type of mold, damage type, and more.