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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
8 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 Joyland Roofing

Joyland Roofing

4.84(
204
)

Joyland Roofing

4.84(
204
)
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Most people get frustrated when trying to communicate with a contractor. At Joyland Roofing, we set a new standard for roofers by corresponding quickly and often from start to finish. You’ll be provided with a clear roof analysis and estimate so you’re confident in our solution. Residential & Commercial roof replacements & repairs. Shingles, metal, rubber. Skylights, sun tunnels, gutters, windows, siding, chimney repairs. Serving Lancaster, Dauphin, Lebanon, Berks, York, Chester, Cumberland, and Montgomery Counties. We are certified by leading roof material manufacturers: GAF MasterElite, MuleHide, and Roofing Products International. We can offer industry-leading warranties and guarantees, & your roof will be installed using manufacturer recommended practices!

"Second time we've worked with Joyland on a full roof replacement - couldn't be more pleased! The process was handled professionally and with great communication. Ross began with an in-depth meeting to REALLY listen to what we wanted evaluated and our time constraints. He did a great job answering ALL our questions, examining our roof from the inside as well so there would be no surprises. He even identified chimney work for us to be aware of to get repaired. We had no idea it needed work. A crew was on site within DAYS to start and 2.5 days later, our new roof was COMPLETE. The workers were great and left the property spotless at the end of each day. Conrad - project manager - stayed 100% on top of the daily progress, keeping us informed at all times, even with some rain issues to work around. Taylor in the office was very efficient with all billing and contacts. Another roofer wanted over 75% paid BEFORE any work was done - Joyland had very reasonable terms! MANY THANKS - great job!"

Linda H on December 2025

Most people get frustrated when trying to communicate with a contractor. At Joyland Roofing, we set a new standard for roofers by corresponding quickly and often from start to finish. You’ll be provided with a clear roof analysis and estimate so you’re confident in our solution. Residential & Commercial roof replacements & repairs. Shingles, metal, rubber. Skylights, sun tunnels, gutters, windows, siding, chimney repairs. Serving Lancaster, Dauphin, Lebanon, Berks, York, Chester, Cumberland, and Montgomery Counties. We are certified by leading roof material manufacturers: GAF MasterElite, MuleHide, and Roofing Products International. We can offer industry-leading warranties and guarantees, & your roof will be installed using manufacturer recommended practices!

"Second time we've worked with Joyland on a full roof replacement - couldn't be more pleased! The process was handled professionally and with great communication. Ross began with an in-depth meeting to REALLY listen to what we wanted evaluated and our time constraints. He did a great job answering ALL our questions, examining our roof from the inside as well so there would be no surprises. He even identified chimney work for us to be aware of to get repaired. We had no idea it needed work. A crew was on site within DAYS to start and 2.5 days later, our new roof was COMPLETE. The workers were great and left the property spotless at the end of each day. Conrad - project manager - stayed 100% on top of the daily progress, keeping us informed at all times, even with some rain issues to work around. Taylor in the office was very efficient with all billing and contacts. Another roofer wanted over 75% paid BEFORE any work was done - Joyland had very reasonable terms! MANY THANKS - great job!"

Linda H on December 2025


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


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 Robert Koppenhaver Builder and Contracting Co.

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!


Avatar for '58 Foundations & Waterproofing

'58 Foundations & Waterproofing

5.00(
1
)

'58 Foundations & Waterproofing

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

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


Baxter Group, Inc. is a locally owned, small business that offers Indoor Environmental Quality services to protect your family, co-workers and friends from indoor environmental contaminants.


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
37 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.

Showing 1-10 of 21
Radon Detection and Reduction questions, answered by experts

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

Using an air purifier in your home or basement isn't an effective way to reduce or mitigate radon. Radon is an inert gas, meaning it doesn't react with other chemicals and can't be filtered the way particulates can be. While an air purifier can help improve your indoor air quality in other ways, don't rely on it to reduce radon.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

Yes, DIY kits are available, but professional testing provides more accurate results and comprehensive reports.

The Williamstown, 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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