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Find Radon gas abatement pros in King George

"I'm completely satisfied with the work that John's team did. They were extremely professional and knowledgeable. The workmanship is superb. Best of all, the system works as promised and reduced the radon concentration based on subsequent tests. I could not recommend them more highly."

Matt L on October 2025

Radon Abatement Services, LLC, is a radon removal contractor serving the greater Maryland, DC and Virginia region. We�re licensed and insured. Make sure your radon contractor is both licensed and insured!

"I'm completely satisfied with the work that John's team did. They were extremely professional and knowledgeable. The workmanship is superb. Best of all, the system works as promised and reduced the radon concentration based on subsequent tests. I could not recommend them more highly."

Matt L on October 2025


John W. S. Davis, Jr.

4.95(
20
)
Approved Pro

John W. S. Davis, Jr.

4.95(
20
)
Approved Pro
Customers say: Terrific value
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
16 years of experience

John is the proud owner of a self named single-purpose environmental business. Specializing in radon mitigation, he helps educate and recognize the importance of testing your home for radon. Call John for a free estimate.

"Excellent"

Kristin Y on May 2023

John is the proud owner of a self named single-purpose environmental business. Specializing in radon mitigation, he helps educate and recognize the importance of testing your home for radon. Call John for a free estimate.

"Excellent"

Kristin Y on May 2023


Avatar for Boston Environmental & Contracting, Inc

Boston Environmental & Contracting, Inc

4.43(
7
)
Approved Pro

Boston Environmental & Contracting, Inc

4.43(
7
)
Approved Pro
Customers say: True professional
115 local quotes requested
19 years of experience

Boston Environmental & Contracting, Inc. (BE&C) is a professional environmental services and contracting firm established in 2006. Our mission is to provide excellent environmental and contracting services to meet the diverse needs of our clients that include government agencies, commercial businesses and homeowners in today’s challenging regulatory climate. We offer a wide variety of cost-effective services including environmental consultancy, abatement, remediation, demolition, renovation/remodeling and specialty contracting services to our residential, commercial and government clients throughout the Washington, DC metropolitan area. We accept all major credit cards: VISA, American Express, MasterCard and Discover DC Business License: 70104232

Boston Environmental & Contracting, Inc. (BE&C) is a professional environmental services and contracting firm established in 2006. Our mission is to provide excellent environmental and contracting services to meet the diverse needs of our clients that include government agencies, commercial businesses and homeowners in today’s challenging regulatory climate. We offer a wide variety of cost-effective services including environmental consultancy, abatement, remediation, demolition, renovation/remodeling and specialty contracting services to our residential, commercial and government clients throughout the Washington, DC metropolitan area. We accept all major credit cards: VISA, American Express, MasterCard and Discover DC Business License: 70104232


Avatar for TOPS RADON

TOPS RADON

5.00(
6
)
Approved Pro

TOPS RADON

5.00(
6
)
Approved Pro
Free onsite estimate

Having served in the military for 22 yrs and working as a government employee, I am committed to excellence in every aspect of myself and my business. I uphold a standard of integrity, fairness, honesty, dependability, and personal responsibility. My distinction is the quality of service I bring to my customers. Accurate knowledge of my trade combined with my ability, is what makes me a true professional. Above all, I am watchful of my customers' interests, and make their concerns the basis of my business.

"Fast and efficient and very reasonably priced! Mitigation worked within first day and levels are well within safe limits now! Thank you for an awesome job!"

Jeremy L on November 2025

Having served in the military for 22 yrs and working as a government employee, I am committed to excellence in every aspect of myself and my business. I uphold a standard of integrity, fairness, honesty, dependability, and personal responsibility. My distinction is the quality of service I bring to my customers. Accurate knowledge of my trade combined with my ability, is what makes me a true professional. Above all, I am watchful of my customers' interests, and make their concerns the basis of my business.

"Fast and efficient and very reasonably priced! Mitigation worked within first day and levels are well within safe limits now! Thank you for an awesome job!"

Jeremy L on November 2025


Avatar for NextDay Inspect

NextDay Inspect

4.94(
316
)
Approved Pro

NextDay Inspect

4.94(
316
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
209 local quotes requested

Our goal is to protect our clients' interest by providing a thorough and detailed inspection of the property. Safeguarding our clients' investment is our priority. We provide residential home inspections, commercial building inspections, pre-drywall inspections, radon gas testing, and mold sampling. View the rate for your home inspection and scheduling availability on our website. Home Inspectors at NextDay Inspect® are licensed by the Department of Professional and Occupational Regulation (DPOR) and the Department of Labor, Licensing, and Regulation (DLLR). Upon completing the on-site inspection the inspector will prepare a report, including photographs taken at the property, and arrows with commentary detailing the areas of concern. Specialized tools are used to ensure a thorough inspection of the properties components. Some of these tools are thermometer, moisture & humidity meter, thermal infrared camera, outlet tester. We have an A plus rating with the Better Business Bureau.

"Michael was nothing but professional, friendly, thorough, and easy to talk with!"

Bryant L on December 2025

Our goal is to protect our clients' interest by providing a thorough and detailed inspection of the property. Safeguarding our clients' investment is our priority. We provide residential home inspections, commercial building inspections, pre-drywall inspections, radon gas testing, and mold sampling. View the rate for your home inspection and scheduling availability on our website. Home Inspectors at NextDay Inspect® are licensed by the Department of Professional and Occupational Regulation (DPOR) and the Department of Labor, Licensing, and Regulation (DLLR). Upon completing the on-site inspection the inspector will prepare a report, including photographs taken at the property, and arrows with commentary detailing the areas of concern. Specialized tools are used to ensure a thorough inspection of the properties components. Some of these tools are thermometer, moisture & humidity meter, thermal infrared camera, outlet tester. We have an A plus rating with the Better Business Bureau.

"Michael was nothing but professional, friendly, thorough, and easy to talk with!"

Bryant L on December 2025


Avatar for Radon Abatement Services

Radon Abatement Services

4.97(
238
)
Approved Pro

Radon Abatement Services

4.97(
238
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
37 local quotes requested

Here at Radon Abatement Services we sustain our business on quality and integrity. We are experts in the residential and commercial radon mitigation trade and are committed to quality from the beginning to the end of your project. We are family owned and operated providing award winning services since 1998.

"John and his team were life savers for us- literally! We had hired a different radon mitigation company (nationwide) and needless to say, their system did nothing! I have two little kids and was so frustrated with the levels staying high. I was looking for someone who could possibly repair the existing system which is how I came across radon abatement services. They had videos and pictures on their website, of all the wrong work that was done by contractors. I figured these guys know what they’re doing. And know they did! I had emailed John to tell him our situation and he got back to me and explained everything in detail. He told me what and why our house needed a different system. I had not given him a single penny and he was so gracious to share his expertise with me. Ofcourse, Eventually we hired them to install a new radon mitigation system in our house. Within the day of installment, our levels went down below 4 and have stayed below 2 consistently thereafter. I cannot thank John enough. Their prices were also reasonable. I would give them 10 stars if I could."

rabab h on August 2025

Here at Radon Abatement Services we sustain our business on quality and integrity. We are experts in the residential and commercial radon mitigation trade and are committed to quality from the beginning to the end of your project. We are family owned and operated providing award winning services since 1998.

"John and his team were life savers for us- literally! We had hired a different radon mitigation company (nationwide) and needless to say, their system did nothing! I have two little kids and was so frustrated with the levels staying high. I was looking for someone who could possibly repair the existing system which is how I came across radon abatement services. They had videos and pictures on their website, of all the wrong work that was done by contractors. I figured these guys know what they’re doing. And know they did! I had emailed John to tell him our situation and he got back to me and explained everything in detail. He told me what and why our house needed a different system. I had not given him a single penny and he was so gracious to share his expertise with me. Ofcourse, Eventually we hired them to install a new radon mitigation system in our house. Within the day of installment, our levels went down below 4 and have stayed below 2 consistently thereafter. I cannot thank John enough. Their prices were also reasonable. I would give them 10 stars if I could."

rabab h on August 2025


Avatar for Restoration1 of Potomac Mills

Restoration1 of Potomac Mills

5.00(
1
)

Restoration1 of Potomac Mills

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

Restoration 1 is a team of property restoration experts and immediate responders who help homeowners after disaster strikes Our professionals are among the most trained and experienced repairmen and technicians in the industry We use the fields most advanced and innovative practices to ensure your property is returned to its pre damage state Whether your dealing with the aftermath of a burst sewer main a house fire severe mold growth a flood or any kind of disaster Restoration 1 is here to make sure your home is rebuilt and restored to its original state or even better Our team responds to emergency damage immediately utilizing our national supply of resources and professionals to pull together and fix your property

"It went great! They were very friendly and professional. From the first day they were on time. I would highly recommend them."

Latricia S on September 2019

Restoration 1 is a team of property restoration experts and immediate responders who help homeowners after disaster strikes Our professionals are among the most trained and experienced repairmen and technicians in the industry We use the fields most advanced and innovative practices to ensure your property is returned to its pre damage state Whether your dealing with the aftermath of a burst sewer main a house fire severe mold growth a flood or any kind of disaster Restoration 1 is here to make sure your home is rebuilt and restored to its original state or even better Our team responds to emergency damage immediately utilizing our national supply of resources and professionals to pull together and fix your property

"It went great! They were very friendly and professional. From the first day they were on time. I would highly recommend them."

Latricia S on September 2019


Avatar for AMERICAN HOME SERVICES

AMERICAN HOME SERVICES

4.97(
99
)

AMERICAN HOME SERVICES

4.97(
99
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Full-Service Mold Inspection & Remediation Specialists Fully Licensed, Insured and Certified. American Home Services is the leading Mold Inspection and Mold Remediation Company in La Pata, Maryland. If you recently experienced water damage, or noticed a musty smell in your home or business, call American Home Services. One of our certified Mold Inspectors will provide a visual inspection and mold remediation consultation for homeowners. **We now use a state of the art thermo-imaging camera during our mold inspections.** Our mold inspectors will develop a custom mold removal program to meet your needs. We also offer a 10% discount to all Angie's List members. Customer must mention this offer at the time that the appointment is booked.

"They were great, they did a good job before but its difficult to get hold of them now, they haven't returned my calls at all."

Marcia H on October 2020

Full-Service Mold Inspection & Remediation Specialists Fully Licensed, Insured and Certified. American Home Services is the leading Mold Inspection and Mold Remediation Company in La Pata, Maryland. If you recently experienced water damage, or noticed a musty smell in your home or business, call American Home Services. One of our certified Mold Inspectors will provide a visual inspection and mold remediation consultation for homeowners. **We now use a state of the art thermo-imaging camera during our mold inspections.** Our mold inspectors will develop a custom mold removal program to meet your needs. We also offer a 10% discount to all Angie's List members. Customer must mention this offer at the time that the appointment is booked.

"They were great, they did a good job before but its difficult to get hold of them now, they haven't returned my calls at all."

Marcia H on October 2020


Avatar for Moldlab

Moldlab

4.74(
352
)

Moldlab

4.74(
352
)
Customers say: True professional
25 years of experience

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018

Mold identification, mold test kits and testing supplies. If you suspect you have a mold problem give us a call toll free and we can walk you through your testing options.

"The self-test product was as expected. The reports require additional research to interpret and understand, so seemed more targeted at professionals."

Jessica H on February 2018


Global Plasma Solutions

5.00(
1
)

Global Plasma Solutions

5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

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FAQs for radon gas abatement projects in King George, VA

The only way to know whether your home or water supply contains radon is to schedule a professional test. A qualified radon inspector will collect samples, deliver lab-verified results, and explain the findings for $150 to $800. Once you know your exact levels, you and your radon mitigation pro can choose the right system and tackle the problem before it affects your family’s health.

Both roles tackle radon, but they focus on different steps. Inspectors test your home, interpret the results, and determine whether levels exceed EPA guidelines. Mitigation pros design and install the system that lowers those levels. Some companies do both, but the skills and equipment differ, so always verify that the person you hire is properly certified for the specific service you need.

Installing a mitigation unit fixes radon problems by reducing indoor gas levels to established safe standards. A system designed and installed by a mitigation expert, tailored to your home's specific layout and foundation, guarantees effective radon reduction. This expert installation ensures consistent performance over time while safeguarding your indoor air quality.

Open windows and doors do not reduce radon levels because they trigger a pressure imbalance that draws radon-laden air into your home. This practice fails to control radon concentration and can even worsen the issue. An active suction mitigation system provides a proven, safe, and effective solution to reliably reduce radon levels.

Radon mitigation systems generally last between 10 and 30 years, depending on system type and maintenance. Passive systems endure the longest because they have no moving parts, whereas active systems, which use a fan, require fan replacement every 5 to 10 years. System components, such as PVC pipes, seals, and fittings, can remain effective for decades when paired with periodic inspections and proper maintenance.

Radon mitigation systems consume between 300 and 3,000 kWh of electricity per year, depending on fan size and system design. On average, an active radon fan draws 100 to 300 watts continuously, which translates to roughly 876 kWh annually, and adds $30 to $300 to your energy bill each year. Choosing a high-efficiency fan and ensuring tight sealing around pipes helps minimize these ongoing costs.

The King George, VA homeowners’ guide to radon gas abatements

From average costs to expert advice, get all the answers you need to get your job done.