Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Johnstown, PA

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Johnstown, PA?

Select your specific project to find the pro for you.

Find Radon detection and reduction specialists in Johnstown

Avatar for ComfortSpec

ComfortSpec

4.88(
311
)

ComfortSpec

4.88(
311
)
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Home Inspection company serving Monroe, Pike, Northampton, Lacawanna Counties and the Lehigh Valley. Located in Brodheadsville PA. All inspections include a 100 Day Warranty, 200% Money Back Guarantee, Total Home Support and Our Buyers Protection Plan

"Answered my call right away, without the need to leave a message. Inspection scheduled the next morning. The inspector, Bryan was professional, knowledgeable, and was patient with all my questions. Great experience."

Bethzaida H on May 2025

Home Inspection company serving Monroe, Pike, Northampton, Lacawanna Counties and the Lehigh Valley. Located in Brodheadsville PA. All inspections include a 100 Day Warranty, 200% Money Back Guarantee, Total Home Support and Our Buyers Protection Plan

"Answered my call right away, without the need to leave a message. Inspection scheduled the next morning. The inspector, Bryan was professional, knowledgeable, and was patient with all my questions. Great experience."

Bethzaida H on May 2025

Avatar for Environmental Testing & Research Laboratories, Inc

Environmental Testing & Research Laboratories, Inc

4.85(
347
)

Environmental Testing & Research Laboratories, Inc

4.85(
347
)
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

Avatar for R&R Radon Reduction

R&R Radon Reduction

5.00(
16
)

R&R Radon Reduction

5.00(
16
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

R&R Radon Reduction installs radon mitigation systems in and around Pine Grove Pennsylvania .

R&R Radon Reduction installs radon mitigation systems in and around Pine Grove Pennsylvania .

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

Radon Detection and Control

4.63(
38
)

Radon Detection and Control

4.63(
38
)
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers

At Radon Detection and Control, our focus is helping people stay healthy by removing radon gasses from their environment, residential and commercial. Get in touch with us today. We are in the Western Pennsylvania, Ohio, and West Virginia area.

At Radon Detection and Control, our focus is helping people stay healthy by removing radon gasses from their environment, residential and commercial. Get in touch with us today. We are in the Western Pennsylvania, Ohio, and West Virginia area.

Avatar for SWAT Environmental of Pennsylvania

SWAT Environmental of Pennsylvania

4.39(
41
)

SWAT Environmental of Pennsylvania

4.39(
41
)
Customers say: Super punctual
37 years of experience

SWAT Environmental has installed over 50,000 radon systems throughout the country. We are America’s largest radon abatement company, and we have more certified technicians on staff than any other competitor. The experienced staff at SWAT Environmental leads the industry in removing radon from homes, schools, apartment buildings, condominiums, commercial and government buildings. SWAT Environmental is a trusted partner of some of the largest real estate firms in the country, and we lead the industry in quality and overall value. All of our technicians go through a rigorous training program that prepares them to make your home or office safe from the dangers of radon. When you have a problem with radon, you can trust the experienced professionals at SWAT Environmental. Additional Phone:1-888-286-2822

"Install done in 2023 and parts was under warranty. 2 years later it breaks and the company wants to charge to fix it. Product under warranty mean no charge to home owner. Not a reliable company. "

Jay B on December 2025

SWAT Environmental has installed over 50,000 radon systems throughout the country. We are America’s largest radon abatement company, and we have more certified technicians on staff than any other competitor. The experienced staff at SWAT Environmental leads the industry in removing radon from homes, schools, apartment buildings, condominiums, commercial and government buildings. SWAT Environmental is a trusted partner of some of the largest real estate firms in the country, and we lead the industry in quality and overall value. All of our technicians go through a rigorous training program that prepares them to make your home or office safe from the dangers of radon. When you have a problem with radon, you can trust the experienced professionals at SWAT Environmental. Additional Phone:1-888-286-2822

"Install done in 2023 and parts was under warranty. 2 years later it breaks and the company wants to charge to fix it. Product under warranty mean no charge to home owner. Not a reliable company. "

Jay B on December 2025

Avatar for Home Inspections by Dan Howard D/B/A Envirospect

Home Inspections by Dan Howard D/B/A Envirospect

4.75(
12
)

Home Inspections by Dan Howard D/B/A Envirospect

4.75(
12
)
Customers say: Super punctual
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers

We have been in the business of "Keeping People and Property Safe Since 1980". With over 14,000 completed inspections we bring our experience to work for you. All of our inspectors have 4 year degrees and police clearances. Our website is a great resource for all, whether you hire us or not. Environmental information is also available at www.EnviroSpect.info and for Seniors at www.SeniorHomeSafetyNetwork.com

We have been in the business of "Keeping People and Property Safe Since 1980". With over 14,000 completed inspections we bring our experience to work for you. All of our inspectors have 4 year degrees and police clearances. Our website is a great resource for all, whether you hire us or not. Environmental information is also available at www.EnviroSpect.info and for Seniors at www.SeniorHomeSafetyNetwork.com

Inspect-It 1st Property Inspection

4.86(
7
)

Inspect-It 1st Property Inspection

4.86(
7
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Inspect-It 1st® is the Nation's Premier Property Inspection Franchise, servicing buyers, sellers, real estate agents and others with our professional home and building inspection services. Since 1991, we've been the inspection firm of choice for those who want the best local inspection services. Our industry leading inspection report, training and experience, and level of client care are simply unmatched. Home inspection, Commercial inspection, Radon testing, Water quality testing, Termite inspection, Septic dye testing and Well flow testing.

Inspect-It 1st® is the Nation's Premier Property Inspection Franchise, servicing buyers, sellers, real estate agents and others with our professional home and building inspection services. Since 1991, we've been the inspection firm of choice for those who want the best local inspection services. Our industry leading inspection report, training and experience, and level of client care are simply unmatched. Home inspection, Commercial inspection, Radon testing, Water quality testing, Termite inspection, Septic dye testing and Well flow testing.

Showing 1-10 of 23
Radon Detection and Reduction questions, answered by experts

DIY kits are available for basic testing. Professional services provide comprehensive results and recommendations.

What is radon? It’s a radioactive gas that naturally occurs in the ground, forming as uranium and thorium decay. It has no color or odor, so you don’t know if it’s seeping into your building’s foundation. Regular exposure to radon gas increases your chances of suffering from lung cancer. Radon testing measures the air inside your house for the presence of radon gas. If detected, the test will measure the severity of radon levels in your home’s air.

Sampling typically takes 1-3 hours, and depending on the provider, lab results are available within 2-7 days.

There are steps you can take as a homeowner to remediate radon yourself. While a radon reduction professional can make the biggest impact in your home, you can make efforts to improve radon levels on your own by sealing cracks, increasing ventilation, and testing for radon regularly.

Radon testing costs around $450 on average, but you could pay between $150 and $800 for testing, depending on a few factors. The size of your house is one of the most significant cost factors, as your radon professional will have to set up additional tests for homes with larger footprints. The type of test can also have an impact on the cost. Finally, some radon testing companies will include a recommended protocol for radon mitigation, while others might charge $50 to $100 extra.

The Johnstown, 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

What do you need done? We’ll find top pros.
  • 🌱 "Mow a small front yard"
  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"