Top-rated radon detection and reduction specialists.

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Verified Reviews for Radon Detection And Reduction pros in Garnet Valley, PA

*The Angi rating for Radon Detection And Reduction companies in Garnet Valley, PA 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 Garnet Valley, PA 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 October 25, 2025

Find Radon detection and reduction specialists in Garnet Valley

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
168 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 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
156 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

Avatar for Oak Leaf Environmental

Oak Leaf Environmental

409 S Pennsylvania Ave
New on AngiNew on Angi
•Approved Pro

Oak Leaf Environmental

409 S Pennsylvania Ave
New on AngiNew on Angi
•Approved Pro
185 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 ACI-Tech Inc

ACI-Tech Inc

2300 W 4th St #6
4.78(
46
)
•Approved Pro

ACI-Tech Inc

2300 W 4th St #6
4.78(
46
)
•Approved Pro
Customers say: Quality work
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
128 local quotes requested

ACI-Tech Inc. is a licensed and fully-certified provider of remediation services. Asbestos removal is not offered in New Jersey.

"Everything went great. From the estimate to scheduling to the work that was completed the job went smoothly."

Adam R on July 2025

ACI-Tech Inc. is a licensed and fully-certified provider of remediation services. Asbestos removal is not offered in New Jersey.

"Everything went great. From the estimate to scheduling to the work that was completed the job went smoothly."

Adam R on July 2025

Avatar for JIMENEZ AND SON'S

JIMENEZ AND SON'S

4703 East Howell Street
4.88(
32
)
•Approved Pro

JIMENEZ AND SON'S

4703 East Howell Street
4.88(
32
)
•Approved Pro
Customers say: Quality work
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
47 local quotes requested

Jimenez And Son's L.L.C Involves, general demolition, concrete, electric, plumbing, pools, ponds, drywall, home remodeling, and mold remediation, as well as many more We are a team that goes above and beyond in their quest for our customer's satisfaction and happiness. WE ARE A ONE STOP SHOP! There is no need for multiple contractors. Both owners have been working together since they were 13, even receiving their working papers together, as well doing the actual work to this day. We live a lifestyle to help others, and that's it. Overall, we work with 100% professionalism, while also working at an efficient pace and having a great attitude. 😃 Give us a call @ 267-773-2801 OR @ 215-558-0693

"The guys were very courteous,they cleaned up when they were done definitely hire them again."

Joseph H on August 2025

Jimenez And Son's L.L.C Involves, general demolition, concrete, electric, plumbing, pools, ponds, drywall, home remodeling, and mold remediation, as well as many more We are a team that goes above and beyond in their quest for our customer's satisfaction and happiness. WE ARE A ONE STOP SHOP! There is no need for multiple contractors. Both owners have been working together since they were 13, even receiving their working papers together, as well doing the actual work to this day. We live a lifestyle to help others, and that's it. Overall, we work with 100% professionalism, while also working at an efficient pace and having a great attitude. 😃 Give us a call @ 267-773-2801 OR @ 215-558-0693

"The guys were very courteous,they cleaned up when they were done definitely hire them again."

Joseph H 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
799 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: [email protected]

"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: [email protected]

"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 SIS Mold & Home Inspections

SIS Mold & Home Inspections

1172 Skelp Level Rd
5.00(
2
)
•Approved Pro

SIS Mold & Home Inspections

1172 Skelp Level Rd
5.00(
2
)
•Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
10 years of experience

We are a small, veteran-owned local business, your safety is our priority. We inspect and test for mold and radon. SIS only performs testing and inspections, not remediation. We have no conflict of interest. For mold testing and inspections, you will receive a report that is clear and easy to understand with lab results interpreted. The mold inspector has done thousands of inspections and tests in the Delaware valley and keeps current with mold education. For radon testing, SIS uses Continuous Radon Monitors (CRM's) to perform short term tests. We provide professional test results and reports. PA state license # 3589 and nationally certified (NRPP).

"Bob from SIS is a straight shooter, provides options, clear explanations and associated costs on the necessary steps to remediate the problem. Good communication, timely and professional. Pleasantly surprised with my experience with SIS and the contractor they recommended to do the work. Easy 5-star rating, not too common these days."

Dennis H on February 2024

We are a small, veteran-owned local business, your safety is our priority. We inspect and test for mold and radon. SIS only performs testing and inspections, not remediation. We have no conflict of interest. For mold testing and inspections, you will receive a report that is clear and easy to understand with lab results interpreted. The mold inspector has done thousands of inspections and tests in the Delaware valley and keeps current with mold education. For radon testing, SIS uses Continuous Radon Monitors (CRM's) to perform short term tests. We provide professional test results and reports. PA state license # 3589 and nationally certified (NRPP).

"Bob from SIS is a straight shooter, provides options, clear explanations and associated costs on the necessary steps to remediate the problem. Good communication, timely and professional. Pleasantly surprised with my experience with SIS and the contractor they recommended to do the work. Easy 5-star rating, not too common these days."

Dennis H on February 2024

Avatar for Anvil Radon Services

Anvil Radon Services

.
5.00(
15
)

Anvil Radon Services

.
5.00(
15
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Extremely professional and personable service. I’m very pleased with the service I received."

Mark M on March 2023

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Extremely professional and personable service. I’m very pleased with the service I received."

Mark M on March 2023

Avatar for Eagle Inspections LLC

Eagle Inspections LLC

1738 Maple Avenue
4.75(
85
)

Eagle Inspections LLC

1738 Maple Avenue
4.75(
85
)
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

The preferred provider of Home buyer, termite and radon inspections in the area. Fully licensed and insured and never forgetting that above all…we work for you!!! "Educating home buyers so they can make better decisions."

"Jason with Eagle Inspection is, without a doubt, THE BEST home inspector out there! He doesn’t just do his job—he CRUSHES it! Jason goes above and beyond every single time, and I couldn’t imagine trusting anyone else. As a Realtor, I use Jason for ALL my clients. Whether it’s a cozy South Philly rowhome or a stunning $1+ million property in Huntingdon Valley, Jason is always my go-to. And of course, he’s the only person I trust to inspect my own properties. I’ve been working with Jason for FIVE YEARS, and I honestly feel like I hit the jackpot finding him so early in my career. He’s the total package—knowledgeable, professional, and incredibly kind. In no particular order, here's just a glimpse of the exceptional things he has done for my clients: He found termites in my home—hiding behind a light switch of all places! I can’t imagine any other home inspector catching something so hidden and specific. He goes the extra mile by reviewing contractor bids and making sure my clients aren’t getting ripped off. Who else does that? No one! And Jason doesn’t charge for this incredible service! He works evenings and weekends, so my clients don’t have to rearrange their lives to schedule an inspection. One time, he even skipped an Eagles game (gasp!) because my client was leaving the country the next day. Talk about being reliable—Go Birds! Jason invests in top-notch gear, like advanced water detection tools and a high-tech drone, ensuring in-depth home analysis! Jason is an absolute powerhouse of knowledge, and his expertise is in a league of its own! While other home inspectors receive a quick certification, Jason brings the next-level experience of being a former builder. He often spots details other inspectors often miss. He does an excellent job at explaining everything to homebuyers. He makes them feel confident, informed, and READY to become homeowners. If you’re looking for the most thorough, reliable, and all-around incredible home inspector, JASON IS YOUR GUY! I recommend Jason with my whole heart. 10/10, A+++!"

Najah _ on June 2025

The preferred provider of Home buyer, termite and radon inspections in the area. Fully licensed and insured and never forgetting that above all…we work for you!!! "Educating home buyers so they can make better decisions."

"Jason with Eagle Inspection is, without a doubt, THE BEST home inspector out there! He doesn’t just do his job—he CRUSHES it! Jason goes above and beyond every single time, and I couldn’t imagine trusting anyone else. As a Realtor, I use Jason for ALL my clients. Whether it’s a cozy South Philly rowhome or a stunning $1+ million property in Huntingdon Valley, Jason is always my go-to. And of course, he’s the only person I trust to inspect my own properties. I’ve been working with Jason for FIVE YEARS, and I honestly feel like I hit the jackpot finding him so early in my career. He’s the total package—knowledgeable, professional, and incredibly kind. In no particular order, here's just a glimpse of the exceptional things he has done for my clients: He found termites in my home—hiding behind a light switch of all places! I can’t imagine any other home inspector catching something so hidden and specific. He goes the extra mile by reviewing contractor bids and making sure my clients aren’t getting ripped off. Who else does that? No one! And Jason doesn’t charge for this incredible service! He works evenings and weekends, so my clients don’t have to rearrange their lives to schedule an inspection. One time, he even skipped an Eagles game (gasp!) because my client was leaving the country the next day. Talk about being reliable—Go Birds! Jason invests in top-notch gear, like advanced water detection tools and a high-tech drone, ensuring in-depth home analysis! Jason is an absolute powerhouse of knowledge, and his expertise is in a league of its own! While other home inspectors receive a quick certification, Jason brings the next-level experience of being a former builder. He often spots details other inspectors often miss. He does an excellent job at explaining everything to homebuyers. He makes them feel confident, informed, and READY to become homeowners. If you’re looking for the most thorough, reliable, and all-around incredible home inspector, JASON IS YOUR GUY! I recommend Jason with my whole heart. 10/10, A+++!"

Najah _ on June 2025

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Radon Detection and Reduction questions, answered by experts

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

A professional indoor air quality inspection takes anywhere from one to three hours, depending on the size of your home and the number of necessary samples. After the test, the specialist will discuss the findings, but you won’t get a full written report for 2 to 10 days, though you can ask your pro to expedite the process, if needed. 

It is possible to test for radon yourself using DIY radon test kits, but these at-home test kits should never be a replacement for professional radon testing. DIY test kits can provide some information about radon exposure in your house, but your indoor temperature and humidity can affect the results, as can improper usage of the test kit. You could save yourself some money by hiring a radon professional to begin with, and when it comes to your family’s safety, hiring an experienced professional to do the testing is usually the best option.

Since radon typically comes out of the soil, it is most commonly found in the lower levels of a home. In houses with basements, that's a common location for radon. Homes built directly on the ground may have radon on the ground floors. Radon can be found on the upper floors of the home, but often in lower concentrations than in lower levels.

Costs depend on property size, test types, and additional services like mold sampling.

The Garnet Valley, PA 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.

See all articles

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