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Avatar for C&S Home Inspections

C&S Home Inspections

4.91(
52
)
Approved Pro

C&S Home Inspections

4.91(
52
)
Approved Pro
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
2017 years of experience

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They did a great job."

Karen C on November 2025

We pride our company on reliability, great communication, integrity, and quality work. We are experts in our trade and will do our best to keep you as educated as we can on your particular task or project. We look forward to earning your business!

"They did a great job."

Karen C on November 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 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 SWAT Environmental of Pennsylvania

SWAT Environmental of Pennsylvania

4.47(
40
)

SWAT Environmental of Pennsylvania

4.47(
40
)
Customers say: Super punctual
1988 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

"They did a wonderful job. They gave a great estimate. I would recommend them. They were very clean."

dom a on November 2021

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

"They did a wonderful job. They gave a great estimate. I would recommend them. They were very clean."

dom a on November 2021



Robert Koppenhaver Builder and Contracting Co.

5.00(
2
)

Robert Koppenhaver Builder and Contracting Co.

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Robert Koppenhaver Builder and Contracting Co. has been in business for over 40 years as a full service general contractor. We specialize in both Residential and Commercial Construction with a wide variety of services, ranging from Masonry to Custom Home Building, Renovations, Radon Mitigation, and more!

Robert Koppenhaver Builder and Contracting Co. has been in business for over 40 years as a full service general contractor. We specialize in both Residential and Commercial Construction with a wide variety of services, ranging from Masonry to Custom Home Building, Renovations, Radon Mitigation, and more!


"Mike Rhodes @ All Inspect responds quickly to phone, email and text communications. Mike worked me into his schedule and I was able to have an Air Quality test and Mold Inspection on the next business day. Mike and his son were thorough. They checked from floor to ceiling and the ceiling, as well. The basement has several rooms and they inspected each one. They explained what they were doing and what would need to be done for the mold remediation. As soon as the Air Quality results were back, Mike made sure he emailed me it to me promptly. He also gave me the Inspection Report and Recommendations letter promptly, as well. I will definitely be using All Inspect again for my inspection(s) needs."

Zina C on July 2021

"Mike Rhodes @ All Inspect responds quickly to phone, email and text communications. Mike worked me into his schedule and I was able to have an Air Quality test and Mold Inspection on the next business day. Mike and his son were thorough. They checked from floor to ceiling and the ceiling, as well. The basement has several rooms and they inspected each one. They explained what they were doing and what would need to be done for the mold remediation. As soon as the Air Quality results were back, Mike made sure he emailed me it to me promptly. He also gave me the Inspection Report and Recommendations letter promptly, as well. I will definitely be using All Inspect again for my inspection(s) needs."

Zina C on July 2021


Avatar for S.W.A.T. Soil, Water and Air Technologies

S.W.A.T. Soil, Water and Air Technologies

3.25(
4
)

S.W.A.T. Soil, Water and Air Technologies

3.25(
4
)
Customers say: Terrific value
1988 years of experience

The nation’s largest provider of radon mitigation with the most certified radon mitigation technicians. All SWAT Environmental locations are locally owned and operated providing customers with local, quality service.With over 50,000 successful projects, SWAT Environmental is your solution any time radon gas is an issue.We take pride in engineering the most effective and non-intrusive remediation systems in the industry.

The nation’s largest provider of radon mitigation with the most certified radon mitigation technicians. All SWAT Environmental locations are locally owned and operated providing customers with local, quality service.With over 50,000 successful projects, SWAT Environmental is your solution any time radon gas is an issue.We take pride in engineering the most effective and non-intrusive remediation systems in the industry.


Avatar for (215) 238-0593 SWAT Radon Mitigation Philadelphia

(215) 238-0593 SWAT Radon Mitigation Philadelphia

3.00(
2
)

(215) 238-0593 SWAT Radon Mitigation Philadelphia

3.00(
2
)
1988 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.

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.

Showing 1-10 of 20
Radon Detection and Reduction questions, answered by experts

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

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.

If your home has a sump pit, you can integrate it with a radon mitigation system. You can accomplish this by sealing the pump cover with an airtight lid that accommodates radon vent pipes and sump pump hoses. This allows the vent pipe to redirect the radon gas outside of your home.

Mold, VOCs, radon, carbon monoxide, and particulate matter are typically measured.

The Ralpho, 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.