Top-rated radon detection and reduction specialists.

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

*The Angi rating for Radon Detection And Reduction companies in Gwynedd 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 Gwynedd 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 December 05, 2025

Find Radon detection and reduction specialists in Gwynedd Valley

Avatar for SIS Mold & Home Inspections

SIS Mold & Home Inspections

5.00(
2
)
•Approved Pro

SIS Mold & Home Inspections

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 Bioclean

Bioclean

5.00(
30
)
•Approved Pro

Bioclean

5.00(
30
)
•Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
49 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 BOR of Montgomery County

BOR of Montgomery County

5.00(
1
)
•Approved Pro

BOR of Montgomery County

5.00(
1
)
•Approved Pro
112 local quotes requested
1 years of experience

At Best Option Restoration of Montgomery County, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of mold, water, and storms. Here’s what sets us apart: Mold Remediation: Our certified experts assess and isolate mold contamination, ensuring thorough removal and preventing further spore spread. We identify the root cause, devise effective solutions, and prioritize your safety. 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 Choose Best Option Restoration of Montgomery County for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

At Best Option Restoration of Montgomery County, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of mold, water, and storms. Here’s what sets us apart: Mold Remediation: Our certified experts assess and isolate mold contamination, ensuring thorough removal and preventing further spore spread. We identify the root cause, devise effective solutions, and prioritize your safety. 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 Choose Best Option Restoration of Montgomery County for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

Avatar for IDEAL Environmental Solutions Technology

IDEAL Environmental Solutions Technology

5.00(
10
)

IDEAL Environmental Solutions Technology

5.00(
10
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

IDEAL Environmental Solutions Technology specializes in top quality effective eco-friendly remediations , remodeling, construction, and reconstruction in Pennsylvania, Delaware, Maryland, and New Jersey. Our clients receive 5 years guaranteed service warranty.

"I was immediately connected to the owner of the company, Charles, who was able to explain the remediation process very clearly so that it was easy for me to understand, followed by giving me a quote for ALOT less then any other company that reached out. His entire company's workmanship when he got to my house was nothing short of above and beyond with the vapor barriers and equipment used. My house feels fully restored thanks to this amazing company and I will definitely be recommending to all family and friends! Thank you again to the entire C.A.R.E team for all of their help and hard work!!"

Raymond P on May 2023

IDEAL Environmental Solutions Technology specializes in top quality effective eco-friendly remediations , remodeling, construction, and reconstruction in Pennsylvania, Delaware, Maryland, and New Jersey. Our clients receive 5 years guaranteed service warranty.

"I was immediately connected to the owner of the company, Charles, who was able to explain the remediation process very clearly so that it was easy for me to understand, followed by giving me a quote for ALOT less then any other company that reached out. His entire company's workmanship when he got to my house was nothing short of above and beyond with the vapor barriers and equipment used. My house feels fully restored thanks to this amazing company and I will definitely be recommending to all family and friends! Thank you again to the entire C.A.R.E team for all of their help and hard work!!"

Raymond P on May 2023

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 AmeriSpec Inspection Services

AmeriSpec Inspection Services

5.00(
5
)

AmeriSpec Inspection Services

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

AmeriSpec Bucks County is a Veteran Owned and Operated Home and Commercial Inspection company in Bucks County, Certified by ASHI, providing services in General Home Inspections, New Construction Inspections, Pre-Listing Inspections, Small Commercial Inspections, Roofing Inspections, and has working relationships in the local area with Terminix, Radon Monitoring and Mitigation Services, and other businesses potential home buyers and sellers require. AmeriSpec Bucks County provides DISCOUNTS for US Military, Police, Fire, EMS, and first time home buyers. We GUARANTEE a minimum of 150 photos to our clients on their inspection, and each home inspection comes with a 90-day home warranty free of charge to our clients. Please contact us with questions or to schedule your inspection today and check us out at AmeriSpec Bucks County on Facebook!

"Very thorough and explained everything in detail. Gave my buyers and understanding of what would be required."

Missy K on January 2018

AmeriSpec Bucks County is a Veteran Owned and Operated Home and Commercial Inspection company in Bucks County, Certified by ASHI, providing services in General Home Inspections, New Construction Inspections, Pre-Listing Inspections, Small Commercial Inspections, Roofing Inspections, and has working relationships in the local area with Terminix, Radon Monitoring and Mitigation Services, and other businesses potential home buyers and sellers require. AmeriSpec Bucks County provides DISCOUNTS for US Military, Police, Fire, EMS, and first time home buyers. We GUARANTEE a minimum of 150 photos to our clients on their inspection, and each home inspection comes with a 90-day home warranty free of charge to our clients. Please contact us with questions or to schedule your inspection today and check us out at AmeriSpec Bucks County on Facebook!

"Very thorough and explained everything in detail. Gave my buyers and understanding of what would be required."

Missy K on January 2018

Rebuilder Inspectors

5.00(
1
)

Rebuilder Inspectors

5.00(
1
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Rebuilder Inspectors is a Rebuilder Group, Inc business whose background in building science and energy efficiency supports a robust understanding of the built environment.

Rebuilder Inspectors is a Rebuilder Group, Inc business whose background in building science and energy efficiency supports a robust understanding of the built environment.

Avatar for Radon Protection Systems Inc

Radon Protection Systems Inc

5.00(
9
)

Radon Protection Systems Inc

5.00(
9
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Radon Protection Systems Inc. provides radon measurement and mitigation for residential homes predominately in beautiful Bucks County. With our team of experts there isn’t a home we can’t mitigate.

Radon Protection Systems Inc. provides radon measurement and mitigation for residential homes predominately in beautiful Bucks County. With our team of experts there isn’t a home we can’t mitigate.

Radon Technology & Environmental

5.00(
3
)

Radon Technology & Environmental

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a Family owned business and have locally operated in south eastern PA for over 25 years. We don't sub-contract any of our work. We take pride in our work, and in doing so, have become experts in Radon Remediation.

"I contacted three different companies to obtain estimates. Only one, RTE, offered to come out and inspect the property and thoroughly explain what would be needed. There was no pressure to sign a contract. The other two companies had me answer questions about the house and then sent their estimates. I was impressed that the owner of the company himself came out to provide the estimate. Their expertise, customer service, and quality of work far exceeded my expectations. I just got back the results of the post-remediation testing and level was reduced to 1.2, I highly recommend this company. They serve a wide area of the Delaware Valley."

Alan H on June 2024

We are a Family owned business and have locally operated in south eastern PA for over 25 years. We don't sub-contract any of our work. We take pride in our work, and in doing so, have become experts in Radon Remediation.

"I contacted three different companies to obtain estimates. Only one, RTE, offered to come out and inspect the property and thoroughly explain what would be needed. There was no pressure to sign a contract. The other two companies had me answer questions about the house and then sent their estimates. I was impressed that the owner of the company himself came out to provide the estimate. Their expertise, customer service, and quality of work far exceeded my expectations. I just got back the results of the post-remediation testing and level was reduced to 1.2, I highly recommend this company. They serve a wide area of the Delaware Valley."

Alan H on June 2024

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Radon Detection and Reduction questions, answered by experts

Professional radon detection involves placing test kits in the lowest lived-in level of the house for a period, usually 48 hours to several months, followed by lab analysis of collected data.

Costs depend on test type, home size, number of testing locations, and whether follow-up testing is required.

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 DIY kit can lessen the sting that comes with paying for a professional assessment, but these comprehensive tests are true lifesavers. Inspectors are more likely to catch all of the pollutants and hazards in your air. Plus, you’ll still need a professional to verify and act on your DIY test results. 

Some kits don’t include tests for certain air pollutants or only detect their presence, but not their levels (i.e., mold spores). If you’re willing to shell out money for a DIY kit, it’s usually better to stretch your budget slightly higher for a more detailed assessment.

Properties should ideally be tested for radon every 2 to 5 years or sooner when changes to the property structure or ventilation occur that might impact airflow.

The Gwynedd 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.

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