Get matched with top radon gas testers in your area
Enter your zip and get matched with up to 3 pros
Matching on HomeAdvisor
Radon gas testers in Wilmington
Here at, In and Out Home Inspections, LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!
"Excellent and extremely thorough!"
Frank F on June 2024
Here at, In and Out Home Inspections, LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!
"Excellent and extremely thorough!"
Frank F on June 2024
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
Lawson Home Services is the one that gets it done. We are professionals and will solve your radon problems quickly. From start to finish we are working to reduce your radon levels by doing the job correctly. Give us a call today.
"Excellent work!"
Chuck R on February 2024
Lawson Home Services is the one that gets it done. We are professionals and will solve your radon problems quickly. From start to finish we are working to reduce your radon levels by doing the job correctly. Give us a call today.
"Excellent work!"
Chuck R on February 2024
Full service Radon testing and mitigation, air duct and dryer vent cleaning, and blown-in attic insulation company. We service the entire state of Delaware and eastern Maryland.
"Very professional, knowledgeable, courteous and very customer focused. Would definitely use their services again!"
Chris A on November 2023
Full service Radon testing and mitigation, air duct and dryer vent cleaning, and blown-in attic insulation company. We service the entire state of Delaware and eastern Maryland.
"Very professional, knowledgeable, courteous and very customer focused. Would definitely use their services again!"
Chris A on November 2023
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.
"Ordered home kit from them"
Kathryn B on June 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.
"Ordered home kit from them"
Kathryn B on June 2025
ACI-Tech Inc. is a licensed and fully-certified provider of remediation services. Asbestos removal is not offered in New Jersey.
"Jack and his crew were phenomenal. I cannot say enough good things. They did an outstanding job remediating/removing asbestos from our basement. Jack is reliable, professional, has tremendous expertise in the field and communicated with us at every step of the process. He also helped bring me back down to earth because I was so nervous about the asbestos. Truly above and beyond what I could have ever expected. We will certainly hire ACI-Tech again should we have any needs in the future."
Rebecca L on July 2024
ACI-Tech Inc. is a licensed and fully-certified provider of remediation services. Asbestos removal is not offered in New Jersey.
"Jack and his crew were phenomenal. I cannot say enough good things. They did an outstanding job remediating/removing asbestos from our basement. Jack is reliable, professional, has tremendous expertise in the field and communicated with us at every step of the process. He also helped bring me back down to earth because I was so nervous about the asbestos. Truly above and beyond what I could have ever expected. We will certainly hire ACI-Tech again should we have any needs in the future."
Rebecca L on July 2024
Family owned business with over 20 years of experience handling all your Mold Testing & Remediation - Water & Smoke Damage. For residential and commercial.
"Excellent. Steve Newman and Jorge are both responsive and professional. No job is too small. Job was completed in a timely manner. I can always count on them!"
John D on June 2025
Family owned business with over 20 years of experience handling all your Mold Testing & Remediation - Water & Smoke Damage. For residential and commercial.
"Excellent. Steve Newman and Jorge are both responsive and professional. No job is too small. Job was completed in a timely manner. I can always count on them!"
John D on June 2025
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
WELCOME TO CHADDS FORD CLIMATE CONTROL! Chadds Ford Climate Control offers a broad range of skilled services to create a more comfortable, productive, and rewarding home and work environment. We promote superior efficiency, convenience, and accessibility through proven effective equipment and procedures. Our certified technicians bring you safe and viable solutions to the design/build, retrofit, maintenance, and repair of all types of heating and cooling systems, including ductless and geothermal, air quality improvements, thermostats, back up generators, water heaters, and electrical and plumbing services.
"Everything was Great, Very Professional Company.Would Hire again."
Ed P on December 2020
WELCOME TO CHADDS FORD CLIMATE CONTROL! Chadds Ford Climate Control offers a broad range of skilled services to create a more comfortable, productive, and rewarding home and work environment. We promote superior efficiency, convenience, and accessibility through proven effective equipment and procedures. Our certified technicians bring you safe and viable solutions to the design/build, retrofit, maintenance, and repair of all types of heating and cooling systems, including ductless and geothermal, air quality improvements, thermostats, back up generators, water heaters, and electrical and plumbing services.
"Everything was Great, Very Professional Company.Would Hire again."
Ed P on December 2020
Whether you have a flood or an unexpected leak, at Basement Flood Cleanup Crum Lynne PA we fully understand the urgency of getting the water out as soon as possible. That’s why we offer 24-hour emergency water damage response – because the sooner we get the water out, the less flood damage you’ll suffer. The worst water damage occurs when water has been standing for more than 48 hours, which means fast response is essential when water damage occurs. An experienced Basement Flood Cleanup Crum Lynne PA specialist can pump the water from your home and save your flooring and cabinets! Our services are offered around the clock so whether disaster strikes or a pipe bursts, take action! Contact and save your home while saving money as well.Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Mold Removal Mold Remediation Mold Inspection Flood Damage Repair Flood Damage Cleanup Flood Damage Restoration Water Damage Restoration Water Damage Cleanup Basement Flood Cleanup Basement Water Removal Fire Damage Restoration Smoke Damage Restoration Mold Removal Mold Removal Mold Removal Mold Removal Mold Removal Mold Removal Mold Removal Mold Removal
Whether you have a flood or an unexpected leak, at Basement Flood Cleanup Crum Lynne PA we fully understand the urgency of getting the water out as soon as possible. That’s why we offer 24-hour emergency water damage response – because the sooner we get the water out, the less flood damage you’ll suffer. The worst water damage occurs when water has been standing for more than 48 hours, which means fast response is essential when water damage occurs. An experienced Basement Flood Cleanup Crum Lynne PA specialist can pump the water from your home and save your flooring and cabinets! Our services are offered around the clock so whether disaster strikes or a pipe bursts, take action! Contact and save your home while saving money as well.Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Basement Flood Cleanup Crum Lynne PA Mold Removal Mold Remediation Mold Inspection Flood Damage Repair Flood Damage Cleanup Flood Damage Restoration Water Damage Restoration Water Damage Cleanup Basement Flood Cleanup Basement Water Removal Fire Damage Restoration Smoke Damage Restoration Mold Removal Mold Removal Mold Removal Mold Removal Mold Removal Mold Removal Mold Removal Mold Removal
FAQs for radon gas testing projects in Wilmington, DE
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.
- Birmingham
- Phoenix
- Tucson
- Fresno
- Long Beach
- Los Angeles
- Modesto
- Sacramento
- San Diego
- San Francisco
- San Jose
- Denver
- Hartford
- Washington DC
- Fort Lauderdale
- Jacksonville
- Miami
- Orlando
- Tampa
- Atlanta
- Chicago
- Indianapolis
- Louisville
- New Orleans
- Baltimore
- Boston
- Detroit
- Grand Rapids
- Minneapolis
- Saint Paul
- Kansas City
- Saint Louis
- Las Vegas
- Albany
- New York
- Asheville
- Charlotte
- Greensboro
- Raleigh
- Winston Salem
- Cincinnati
- Cleveland
- Columbus
- Oklahoma City
- Portland
- Harrisburg
- Philadelphia
- Pittsburgh
- Providence
- Memphis
- Nashville
- Austin
- Dallas
- El Paso
- Fort Worth
- Houston
- San Antonio
- Salt Lake City
- Norfolk
- Richmond
- Virginia Beach
- Seattle
- Madison
- Milwaukee
Get our Angi-powered app
