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Verified Reviews for Radon Detection And Reduction pros in Bellefonte, DE
*The Angi rating for Radon Detection And Reduction companies in Bellefonte, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.
*The HomeAdvisor rating for Radon Detection And Reduction companies in Bellefonte, DE is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.
Last update on December 14, 2025
Find Radon detection and reduction specialists in Bellefonte
In and Out Home Inspections, LLC
In and Out Home Inspections, LLC
Customers say: Quick response
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
9 years of experience
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!
"Our inspector did an excellent job with inspecting the home. He proved to be knowledgeable and offered recommendations for improvements."
Maurice on October 2025
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!
"Our inspector did an excellent job with inspecting the home. He proved to be knowledgeable and offered recommendations for improvements."
Maurice on October 2025
Lawson Home Services, LLC
Lawson Home Services, LLC
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
15 years of experience
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
Lawson Home Services, LLC
Lawson Home Services, LLC
Customers say: True professional
15 years of experience
Free onsite estimate
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
The Radon Bros
Super Service Award
Customers say: Terrific value
7 years of experience
Free onsite estimate
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.
"They were really helpful and polite they explained the job from start to finish and they explian how radon is harmful."
David R on November 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.
"They were really helpful and polite they explained the job from start to finish and they explian how radon is harmful."
David R on November 2025
Landmark Inspections LLC
Landmark Inspections LLC
Customers say: True professional
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Landmark Inspections LLC is owned and operated by its founding member/manager ASHI Certified inspector, Scott Freeman .
"Scott from Landmark Inspections performed a home inspection of the home my husband and I are purchasing. We are first time home buyers and this is our first home inspection. We were very impressed with Scott from beginning to end. Before the inspection, he was responsive and communcative, answering every one of our phone calls and emails. The inspection was thorough and Scott and his trainee inspector (also Scott) took the time to answer our questions and explain everything they were doing/finding. The inspection did not feel rushed or like Scott was trying to get through it to move on to the next. The report he sent us (48 hours after the inspection, great turn around time) was very throrough, contained useful information about our future home, and clearly laid out a heirarchy for recommended repairs. We also got a termite inspection, sewer scope inspection (which was also performed incredibly professionally by Melvin from Knox & Knox Solutions), and raydon test. In total, we paid a lot of money for these services, but it was money very well spent. We would not hesitate to recommend Scott, Landmark, and the other service professionals with whom he contracts."
Allison E on September 2020
Landmark Inspections LLC is owned and operated by its founding member/manager ASHI Certified inspector, Scott Freeman .
"Scott from Landmark Inspections performed a home inspection of the home my husband and I are purchasing. We are first time home buyers and this is our first home inspection. We were very impressed with Scott from beginning to end. Before the inspection, he was responsive and communcative, answering every one of our phone calls and emails. The inspection was thorough and Scott and his trainee inspector (also Scott) took the time to answer our questions and explain everything they were doing/finding. The inspection did not feel rushed or like Scott was trying to get through it to move on to the next. The report he sent us (48 hours after the inspection, great turn around time) was very throrough, contained useful information about our future home, and clearly laid out a heirarchy for recommended repairs. We also got a termite inspection, sewer scope inspection (which was also performed incredibly professionally by Melvin from Knox & Knox Solutions), and raydon test. In total, we paid a lot of money for these services, but it was money very well spent. We would not hesitate to recommend Scott, Landmark, and the other service professionals with whom he contracts."
Allison E on September 2020
Reliable Home Inspection Service
Reliable Home Inspection Service
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
Reliable Home Inspection Service offers a variety of inspections related to the real estate transaction; Serving Delaware, Maryland and Pennsylvania, you can be assured that you will receive excellent customer service, especially with our one stop shop philosophy. Our computer generated report, which is delivered on-site, has been recognized nationally and locally as an extremely helpful tool for the real estate transaction. With 24-7 availability for scheduling and customer service, we are here to help serve you! We also offer a variety of discounts for you and look forward to the opportunity to be on your team and provide impeccable service to you as a buyer and seller.
"Paul Duhamel performed home inspection and everything went wells, It took about 3 hrs and he notified few issues in the house and he answered to all my questions. Very professional and to the point. I refereed to my friends and even he is also happy with the inspection they performed."
Sirisha B on June 2019
Reliable Home Inspection Service offers a variety of inspections related to the real estate transaction; Serving Delaware, Maryland and Pennsylvania, you can be assured that you will receive excellent customer service, especially with our one stop shop philosophy. Our computer generated report, which is delivered on-site, has been recognized nationally and locally as an extremely helpful tool for the real estate transaction. With 24-7 availability for scheduling and customer service, we are here to help serve you! We also offer a variety of discounts for you and look forward to the opportunity to be on your team and provide impeccable service to you as a buyer and seller.
"Paul Duhamel performed home inspection and everything went wells, It took about 3 hrs and he notified few issues in the house and he answered to all my questions. Very professional and to the point. I refereed to my friends and even he is also happy with the inspection they performed."
Sirisha B on June 2019
Environmental Testing & Research Laboratories, Inc
Environmental Testing & Research Laboratories, Inc
Customers say: True professional
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018
ETR Laboratories in an analytic laboratory with a broad range of commercial, industrial and individual clients. We provide analytic services using a wide variety of scientific methods including GC/MS, IC/MS, GIR, NMR and SEM equipment. We can do particle analysis, organic and inorganic chemical analysis and micro analysis on biological and other materials. Private water analysis is our specialty. Award winning. Additional DBA - Environmental Testing & Research Laboratories Inc, ETR Labs, ETR Laboratories.
"as advertised"
Nancy C on July 2018
Real Estate Inspections
Real Estate Inspections
Customers say: True professional
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
We offer a complete line of residential and commercial property inspection and testing services. All of our services are performed in house by trained, licensed, and certified inspectors. Our mission is to impart knowledge to our clients. We endeavor to empower our clients with the knowledge they need to make informed Financial, Health & Safety decisions for their family.
"Excellent! See statement"
Peter S on August 2022
We offer a complete line of residential and commercial property inspection and testing services. All of our services are performed in house by trained, licensed, and certified inspectors. Our mission is to impart knowledge to our clients. We endeavor to empower our clients with the knowledge they need to make informed Financial, Health & Safety decisions for their family.
"Excellent! See statement"
Peter S on August 2022
Funari Public Adjusters
Funari Public Adjusters
Customers say: Super punctual
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
We are a family owned and operated Public Adjusting Firm that has been open since 1987. For over 30 years we have assisted homeowners through the property claims process and have bolstered our business based on our efforts to not only get the greatest settlement possible for our clients, but also by conducting ourselves as courteous professionals who treat our customers with a great deal of respect and consideration. Unfortunately the time when we usually meet for the first time is after some sort of tragic or catastrophic event in the life of a homeowner, i.e. a collapsed roof or burst stack pipe. However, given our attention to detail, knowledge of construction and vast amount of experience we are fully capable of walking you through these no doubt difficult to deal with situations and we can help you come out of it with a great sigh of relief and often a notion of surprise at how great and quick a settlement can come from the claims adjusting process. Give us a call for a free home walk-through and policy evaluation!
"????? Highly Recommended Review: Funari Public Adjusters I am writing to share my experience with Funari Public Adjusters, and I cannot say enough about the exceptional service provided by the owners, Chris and Vito, and their entire team of experts. From the very first call, they were immediately available and responsive, helping me during my critical time of need. The team went above and beyond in every aspect?from assigning a dedicated representative to handle my claim, to guiding me through the entire process from start to finish. Every staff member I interacted with was friendly, professional, and extremely helpful whenever I had questions. I have used this company on three separate occasions, and each time they exceeded my expectations: When a neighbor?s tree fell on the back portion of my home. When I experienced a theft at my rental property, resulting in damages and losses. Most recently, after heavy rains caused significant roof damage to my home, including my top-floor"
Henrietta y on August 2025
We are a family owned and operated Public Adjusting Firm that has been open since 1987. For over 30 years we have assisted homeowners through the property claims process and have bolstered our business based on our efforts to not only get the greatest settlement possible for our clients, but also by conducting ourselves as courteous professionals who treat our customers with a great deal of respect and consideration. Unfortunately the time when we usually meet for the first time is after some sort of tragic or catastrophic event in the life of a homeowner, i.e. a collapsed roof or burst stack pipe. However, given our attention to detail, knowledge of construction and vast amount of experience we are fully capable of walking you through these no doubt difficult to deal with situations and we can help you come out of it with a great sigh of relief and often a notion of surprise at how great and quick a settlement can come from the claims adjusting process. Give us a call for a free home walk-through and policy evaluation!
"????? Highly Recommended Review: Funari Public Adjusters I am writing to share my experience with Funari Public Adjusters, and I cannot say enough about the exceptional service provided by the owners, Chris and Vito, and their entire team of experts. From the very first call, they were immediately available and responsive, helping me during my critical time of need. The team went above and beyond in every aspect?from assigning a dedicated representative to handle my claim, to guiding me through the entire process from start to finish. Every staff member I interacted with was friendly, professional, and extremely helpful whenever I had questions. I have used this company on three separate occasions, and each time they exceeded my expectations: When a neighbor?s tree fell on the back portion of my home. When I experienced a theft at my rental property, resulting in damages and losses. Most recently, after heavy rains caused significant roof damage to my home, including my top-floor"
Henrietta y on August 2025
AHI, Inc. (Also dba Allstate Home Inspections,Inc)
AHI, Inc. (Also dba Allstate Home Inspections,Inc)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
AHI, Inc is an Ambler, PA based Commercial Building Inspection, Residential Home Inspection, Pool Inspection and Environmental Testing Firm, owned and operated by expert Building Consultant, Peter Muehlbronner.
"I am a construction attorney who worked for the U.S. Army Corps of Engineers for 32 years before I retired. I also maintained a par-time practice throughout that time. and represented many home buyers. I found Mr. Muehlbronner from AHI, Inc., to be by far one of the most, if not the most competent and rigorous inspectors that I have had the pleasure of working with in my career. He uncovered numerous problems in the 1st house that was under contract . We had to walk away from the first house. This was the second house that he inspected for us within a month. Mr, Muehlbronner was well worth every penny spent on his consultation and inspection services. I would wholeheartedly recommend him without reservation."
James M on October 2020
AHI, Inc is an Ambler, PA based Commercial Building Inspection, Residential Home Inspection, Pool Inspection and Environmental Testing Firm, owned and operated by expert Building Consultant, Peter Muehlbronner.
"I am a construction attorney who worked for the U.S. Army Corps of Engineers for 32 years before I retired. I also maintained a par-time practice throughout that time. and represented many home buyers. I found Mr. Muehlbronner from AHI, Inc., to be by far one of the most, if not the most competent and rigorous inspectors that I have had the pleasure of working with in my career. He uncovered numerous problems in the 1st house that was under contract . We had to walk away from the first house. This was the second house that he inspected for us within a month. Mr, Muehlbronner was well worth every penny spent on his consultation and inspection services. I would wholeheartedly recommend him without reservation."
James M on October 2020
FAQs for radon detection and reduction projects in Bellefonte, DE
If radon is present in your home, you can expect to pay around $1,000 for a radon mitigation system or between $780 and $1,250 in most cases. The exact price will depend on the severity of the radon leak, home size, and the protocol the radon specialist develops to remove radon from your home and keep it out. Your foundation type will also affect your radon mitigation system cost, as unfinished basements will cost about $4,600 to seal and ventilate, while crawl spaces without a foundation slab may need extra encapsulation, costing $1,500 to $15,000.
You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional.
Radon testing costs depend on whether you hire a professional radon inspector or DIY test. You can expect to pay $150 to $800 to hire a local radon inspector, and home-testing kits range in price from $15 to $250 from home improvement stores. However, it’s best to trust a professional inspector with this task to ensure accurate results. Plus, if you have radon in your home, your testing company can develop a mitigation protocol to keep you and your family safe from the dangerous gas, so it’s well worth the money to hire a professional.
Yes, radon testing is absolutely necessary if you suspect the presence of this hazardous gas, and the Environmental Protection Agency (EPA) recommends testing for all homes in the country. Radon is a pervasive natural gas that can leak through your home’s foundation and seep into the living areas. Unfortunately, the gas is highly carcinogenic and is the second leading cause of lung cancer. Radon testing is crucial for keeping you and your family safe from harm, so hire a radon mitigation specialist to test your home if you suspect its presence in your home.
In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.
The Bellefonte, DE homeowners’ guide to radon detection and reduction services
From average costs to expert advice, get all the answers you need to get your job done.
•Discover the average indoor air quality testing cost, what impacts pricing, and how to budget for healthier air in your home.
•Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
Radon is a radioactive gas that can enter a home from the ground. Prepare yourself for mitigation by answering these questions before hiring a pro.
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