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Verified Reviews for Radon Detection And Reduction pros in Cornwall, PA
*The Angi rating for Radon Detection And Reduction companies in Cornwall, 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 Cornwall, 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 Cornwall

Oak Leaf Environmental
Oak Leaf Environmental
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.

The Mold Removers LLC
The Mold Removers LLC
We are a small business with a lot of experience. We don't treat you like a number. You are our only focus. We specialize in mold remediation . We come in and make a terrible situation a healthier home than before.
"They did a great job thank you!"
Mary B on September 2025
We are a small business with a lot of experience. We don't treat you like a number. You are our only focus. We specialize in mold remediation . We come in and make a terrible situation a healthier home than before.
"They did a great job thank you!"
Mary B on September 2025

'58 Foundations & Waterproofing
'58 Foundations & Waterproofing
For more than 60 years, ’58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawlspace encapsulation, radon mitigation, mold removal and foundation repair solutions for homes and commercial properties. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and in upholding the values on which '58 Foundations was built: trust, teamwork, integrity, respect and communication. This comes across in all that we do: from the initial call to job completion, our customers are met with a knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry.
"Our home is about 100 years old and has a stone foundation. Water has been an issue in the basement for far longer than we have owned the home. In three days '58 Foundations installed a drain, pump and sealed the walls. It has been six months and there has been absolutely no signs of water or other moisture in the basement. We are extremely happy with the service they provided."
Jim H on June 2022
For more than 60 years, ’58 Foundations & Waterproofing has provided the highest-quality basement waterproofing, crawlspace encapsulation, radon mitigation, mold removal and foundation repair solutions for homes and commercial properties. We lead with a promise of Trusted Five-Star Service, which means the customer experience is at the center of everything we do. Since 1958, we have been steadfast in keeping this promise and in upholding the values on which '58 Foundations was built: trust, teamwork, integrity, respect and communication. This comes across in all that we do: from the initial call to job completion, our customers are met with a knowledgeable, caring, and professional staff prepared to offer a five-star experience that is unmatched in the home repair industry.
"Our home is about 100 years old and has a stone foundation. Water has been an issue in the basement for far longer than we have owned the home. In three days '58 Foundations installed a drain, pump and sealed the walls. It has been six months and there has been absolutely no signs of water or other moisture in the basement. We are extremely happy with the service they provided."
Jim H on June 2022
d-smith renovations llc
d-smith renovations llc
My company is a full service renovation and handyman services company. We can do anything from a full renovation all the way down to a simple repair.
My company is a full service renovation and handyman services company. We can do anything from a full renovation all the way down to a simple repair.
Flannery Home Inspection Services, LLC
Flannery Home Inspection Services, LLC
We are a full service inspection company, located in Harrisburg, PA
We are a full service inspection company, located in Harrisburg, PA

Accredited Environmental Technologies
Accredited Environmental Technologies
Solutions to complex environmental problems consulting and contracting includes asbestos, lead, pcb, mold, water damage, industrial hygiene, indoor air quality, hvac, osha, underground storage tanks, environmental site assessments, vapor intrusion, brownfield investigations, restoration consulting, environmental claims investigation, waste disposal, characterization & general environmental concerns.
Solutions to complex environmental problems consulting and contracting includes asbestos, lead, pcb, mold, water damage, industrial hygiene, indoor air quality, hvac, osha, underground storage tanks, environmental site assessments, vapor intrusion, brownfield investigations, restoration consulting, environmental claims investigation, waste disposal, characterization & general environmental concerns.
Aether Assessments, LLC
Aether Assessments, LLC
AETHER was formed by Eric A. Mercer, a Council-Certified Indoor Environmental Consultant (CIEC) with over 15 years of experience in providing assessments and resolutions for a wide variety of concerns and clients. During his career he has had the pleasure of working with clients including homeowners, national retail and hospitality chains, school districts, financial institutions, the healthcare industry, and local/federal entities.
AETHER was formed by Eric A. Mercer, a Council-Certified Indoor Environmental Consultant (CIEC) with over 15 years of experience in providing assessments and resolutions for a wide variety of concerns and clients. During his career he has had the pleasure of working with clients including homeowners, national retail and hospitality chains, school districts, financial institutions, the healthcare industry, and local/federal entities.
Bahret Church Interiors, Inc.
Bahret Church Interiors, Inc.
For the past 69 years the Bahret family has delivered and hand-installed everything from complete Church Interior Design services, Church Interior Decoration, Major Church Reconstruction, Church Remodeling, Comprehensive Church Rennovation and Rehabilitation, to Restoration of Heirloom Antique Woodwork, Pew Fabric Re-Upolstery... and even Stained-Glass Repair and Cleaning. Our family's experience will meet and exceed your expectations. We can fulfill all of your Church's rennovation needs and WE DO NOT SUBCONTRACT OUR LABOR. We will meet with you for a free private consultation.
For the past 69 years the Bahret family has delivered and hand-installed everything from complete Church Interior Design services, Church Interior Decoration, Major Church Reconstruction, Church Remodeling, Comprehensive Church Rennovation and Rehabilitation, to Restoration of Heirloom Antique Woodwork, Pew Fabric Re-Upolstery... and even Stained-Glass Repair and Cleaning. Our family's experience will meet and exceed your expectations. We can fulfill all of your Church's rennovation needs and WE DO NOT SUBCONTRACT OUR LABOR. We will meet with you for a free private consultation.

Seitz Brothers
Seitz Brothers
Additional phones - (215) 453-5044, (877) 353-3336, (866) 734-8927.
Additional phones - (215) 453-5044, (877) 353-3336, (866) 734-8927.

RLS Environmental
RLS Environmental
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!
"Ron is wonderful! He did an amazing job, kept everything neat and clean, got the job done quickly! If you’re looking for a professional that knows his stuff Ron is definitely the one you’re looking for!"
Adriane M on October 2022
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!
"Ron is wonderful! He did an amazing job, kept everything neat and clean, got the job done quickly! If you’re looking for a professional that knows his stuff Ron is definitely the one you’re looking for!"
Adriane M on October 2022
The Cornwall, 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.
•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.

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.

Can a homeowner install a radon mitigation system? While some parts of the project are fine for DIY, you should leave the meat of the task to a licensed professional.

How long does a radon fan last? Depending on the quality of the fan, usage, and maintenance, a radon fan can last five to ten years.

The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
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- 🌱 "Mow a small front yard"
- 🛠 "Fix a leaking pipe under the sink"
- 🏠 "Repair shingles on an asphalt roof"



