Top-rated radon detection and reduction specialists.

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TRUSTED BY DALE CITY, VA HOMEOWNERS

  • Average homeowner rating star icon4.8
    Average homeowner rating
  • Verified reviews icon10
    Verified radon detection and reduction services reviews

Find Radon detection and reduction specialists in Dale City

Avatar for NextDay Inspect

NextDay Inspect

4.94(
315
)
Approved Pro

NextDay Inspect

4.94(
315
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
2008 years of experience

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.

"Great dude! I would recommend!"

Harvir S 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.

"Great dude! I would recommend!"

Harvir S on December 2025


Avatar for NextDay Inspect®

NextDay Inspect®

4.90(
538
)
Approved Pro

NextDay Inspect®

4.90(
538
)
Approved Pro
Super Service Award
Customers say: True professional
2008 years of experience
Free onsite estimate

Use code HAWarranty when scheduling for complimentary home warranties! 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 DPOR and DLLR and are certified members of ASHI and InterNACHI. 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+' rating with the Better Business Bureau.

"Timely and provided good understanding of some issues we need to address."

Trevin A on December 2025

Use code HAWarranty when scheduling for complimentary home warranties! 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 DPOR and DLLR and are certified members of ASHI and InterNACHI. 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+' rating with the Better Business Bureau.

"Timely and provided good understanding of some issues we need to address."

Trevin A on December 2025


Avatar for Adam Contracting

Adam Contracting

4.83(
137
)
Approved Pro

Adam Contracting

4.83(
137
)
Approved Pro
Customers say: Quality work
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
2008 years of experience

My name is Justin LeBlanc, and I am the owner and operator of Adam Contracting. Adam Contracting considers customer satisfaction our highest priority, and we make sure that, as a client, you are satisfied not only with the affordability but the quality of our work. Adam Contracting is a fully licensed and insured company. Please feel free to contact us anytime for an estimate!

"My only regret is not hiring Adam Contracting sooner. From the beginning of the project, I was updated on the schedule and cost. All of the employees were professional, and skilled, and left my house clean after each task. If I had issues or noticed something that needed to be changed the owner addressed the concern immediately. I am very happy with the finished project!"

Nia W on November 2022

My name is Justin LeBlanc, and I am the owner and operator of Adam Contracting. Adam Contracting considers customer satisfaction our highest priority, and we make sure that, as a client, you are satisfied not only with the affordability but the quality of our work. Adam Contracting is a fully licensed and insured company. Please feel free to contact us anytime for an estimate!

"My only regret is not hiring Adam Contracting sooner. From the beginning of the project, I was updated on the schedule and cost. All of the employees were professional, and skilled, and left my house clean after each task. If I had issues or noticed something that needed to be changed the owner addressed the concern immediately. I am very happy with the finished project!"

Nia W on November 2022


Avatar for SERVPRO of Springfield/Mt Vernon

SERVPRO of Springfield/Mt Vernon

4.63(
8
)
Approved Pro

SERVPRO of Springfield/Mt Vernon

4.63(
8
)
Approved Pro
Customers say: Quality work
2009 years of experience
Emergency services offered

As a trusted leader in the restoration industry, SERVPRO of Springfield / Mt. Vernon is a locally owned and operated business that is determined to provide a fast response and 24-hour service to disasters of all types and sizes. All our technicians are highly trained, equipped with an extensive variety of advanced tools, and have an abundance of experience to deal with various disasters and to manage your restoration and construction needs. We posses a class A General Contractors license for VA. No job is to big or to small for us. We are a full service restoration - re-construction company. We specialize in emergency restoration, asbestos abatement and construction services. From a simple painting job, flooring installation to full kitchen and bathrooms remodeling, we do it all.

"Great service, very fast and professional highly recommend!!"

Alexis C on December 2023

As a trusted leader in the restoration industry, SERVPRO of Springfield / Mt. Vernon is a locally owned and operated business that is determined to provide a fast response and 24-hour service to disasters of all types and sizes. All our technicians are highly trained, equipped with an extensive variety of advanced tools, and have an abundance of experience to deal with various disasters and to manage your restoration and construction needs. We posses a class A General Contractors license for VA. No job is to big or to small for us. We are a full service restoration - re-construction company. We specialize in emergency restoration, asbestos abatement and construction services. From a simple painting job, flooring installation to full kitchen and bathrooms remodeling, we do it all.

"Great service, very fast and professional highly recommend!!"

Alexis C on December 2023


Avatar for Homeworx Services, Inc.

Homeworx Services, Inc.

4.67(
12
)
Approved Pro

Homeworx Services, Inc.

4.67(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
2006 years of experience

Homeworx Services, Inc, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Professional, consistent, on time, knowledgeable."

Mary R on March 2023

Homeworx Services, Inc, is committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers interests, and make their concerns the basis of our business.

"Professional, consistent, on time, knowledgeable."

Mary R on March 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
2006 years of experience
Free onsite estimate

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 HomeKey Inspections, LLC

HomeKey Inspections, LLC

5.00(
80
)

HomeKey Inspections, LLC

5.00(
80
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Purchasing a home can be one of the biggest decisions you’ll ever make. We’re here to help. Our number one goal is to give our clients the knowledge and resources they need to be in the best position possible when it comes to buying or selling a home. Our inspectors are professionally trained beyond the state standards, ASHI Certified Inspectors (ACI) - the hardest certification to obtain that isn't a marketing gimmick, fully licensed and AHIT certified, utilizing the latest tools and technology to provide an excellent inspection service for every client, every time! Inspection reports include photos/videos of problems found along with helpful illustrations and are sent soon after the inspection. We’ve seen it all, from the best to the worst, so rest assured that you’ll find yourself in good hands with HomeKey Inspections. Book an inspection today and find out why we are one of the top-rated inspection companies in the area.

"I carefully read and compared company reviews and have had several home inspections over the years, so I expected a quality inspection from HomeKey but even going into it with high expectations I was still surprised and impressed with the thoroughness and conscientiousness of the inspection. My inspector was Mike, and the home is an older one owned by an elderly person so there were many issues to evaluate. The inspection took much longer than the average amount of time and the report was much longer and required much more work to produce, but there wasn't the slightest hint of rushing any of it or skimping at all. I myself suggested the roof could be skipped because I was worried moss had made it slippery and figured it was surely pretty much gone anyway, but Mike bravely went up there, made sure it was safe, then took a good long while in the heat and returned with photos and an issue that requires immediate attention. Likewise, I was surprised at the willingness to enter a very cramped dirt floor crawl space and proceed around the entire foundation... out of sight into the nether reaches... but I have photographic proof! Those are just two examples out of many, but from under the floors to over the ceilings in attic spaces accessible only through ceiling hatches, Mike examined every detail, took photos, and carefully documented the entire process which resulted in a long, thorough and informative report that will make the purchase decision better informed and provide structure for repair decisions. The price of the service was pretty much the going rate, and thus reasonable. I don't see much spread in the pricing of home inspections across companies, so I would feel cautious of any company that deviated by much. The difference in value for your cost would then be the quality of the inspection. Honestly, the cost of HomeKey's inspection could have been higher and would still have been well worth it for the care, time spent, the information provided, and for the assurance having a trained eye on things can give you."

Emily H on June 2024

Purchasing a home can be one of the biggest decisions you’ll ever make. We’re here to help. Our number one goal is to give our clients the knowledge and resources they need to be in the best position possible when it comes to buying or selling a home. Our inspectors are professionally trained beyond the state standards, ASHI Certified Inspectors (ACI) - the hardest certification to obtain that isn't a marketing gimmick, fully licensed and AHIT certified, utilizing the latest tools and technology to provide an excellent inspection service for every client, every time! Inspection reports include photos/videos of problems found along with helpful illustrations and are sent soon after the inspection. We’ve seen it all, from the best to the worst, so rest assured that you’ll find yourself in good hands with HomeKey Inspections. Book an inspection today and find out why we are one of the top-rated inspection companies in the area.

"I carefully read and compared company reviews and have had several home inspections over the years, so I expected a quality inspection from HomeKey but even going into it with high expectations I was still surprised and impressed with the thoroughness and conscientiousness of the inspection. My inspector was Mike, and the home is an older one owned by an elderly person so there were many issues to evaluate. The inspection took much longer than the average amount of time and the report was much longer and required much more work to produce, but there wasn't the slightest hint of rushing any of it or skimping at all. I myself suggested the roof could be skipped because I was worried moss had made it slippery and figured it was surely pretty much gone anyway, but Mike bravely went up there, made sure it was safe, then took a good long while in the heat and returned with photos and an issue that requires immediate attention. Likewise, I was surprised at the willingness to enter a very cramped dirt floor crawl space and proceed around the entire foundation... out of sight into the nether reaches... but I have photographic proof! Those are just two examples out of many, but from under the floors to over the ceilings in attic spaces accessible only through ceiling hatches, Mike examined every detail, took photos, and carefully documented the entire process which resulted in a long, thorough and informative report that will make the purchase decision better informed and provide structure for repair decisions. The price of the service was pretty much the going rate, and thus reasonable. I don't see much spread in the pricing of home inspections across companies, so I would feel cautious of any company that deviated by much. The difference in value for your cost would then be the quality of the inspection. Honestly, the cost of HomeKey's inspection could have been higher and would still have been well worth it for the care, time spent, the information provided, and for the assurance having a trained eye on things can give you."

Emily H on June 2024


Radon Installation Contractors LLC

5.00(
56
)

Radon Installation Contractors LLC

5.00(
56
)
Customers say: Quick response
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers

"We take pride in our superb quality service, craftsmanship and attention to detail. We believe in doing the job right the first time and, above all, customer satisfaction." "Our company has built a reputation for stellar service and proven results in reducing indoor radon gas levels. 99 percent of our jobs that were retested after our radon system installation came back below 1 and the EPA standards the first time!" Cost of services, installation and especially materials are key factors in the caliber of installation and resulting performance. We price our radon system based on high-class material cost and risk factors. We only use the best materials available, and we keep our equipment and radon fans up-to-date to complete the job. We strive to maintain competitive prices without sacrificing quality. Note: State of Virginia requires a Home Improvement License to install a radon mitigation system and General Liability Insurance. We are License and Insured to perform Radon Mitigation system Installations in the State of Virginia VA Lic 127731C and also (NEHA & NRSB Certified for radon work). We also provide Radon Fan sales, installations and repairs of old radon systems. We service Fairfax, Prince William and Loudoun counties.

"Prompt, courteous, professional, precise, and paid thorough attention to detail. Completed the installation in a timely manner, while explaining every aspect of the task through the entire process."

Jeff C on February 2020

"We take pride in our superb quality service, craftsmanship and attention to detail. We believe in doing the job right the first time and, above all, customer satisfaction." "Our company has built a reputation for stellar service and proven results in reducing indoor radon gas levels. 99 percent of our jobs that were retested after our radon system installation came back below 1 and the EPA standards the first time!" Cost of services, installation and especially materials are key factors in the caliber of installation and resulting performance. We price our radon system based on high-class material cost and risk factors. We only use the best materials available, and we keep our equipment and radon fans up-to-date to complete the job. We strive to maintain competitive prices without sacrificing quality. Note: State of Virginia requires a Home Improvement License to install a radon mitigation system and General Liability Insurance. We are License and Insured to perform Radon Mitigation system Installations in the State of Virginia VA Lic 127731C and also (NEHA & NRSB Certified for radon work). We also provide Radon Fan sales, installations and repairs of old radon systems. We service Fairfax, Prince William and Loudoun counties.

"Prompt, courteous, professional, precise, and paid thorough attention to detail. Completed the installation in a timely manner, while explaining every aspect of the task through the entire process."

Jeff C on February 2020


Avatar for Accurate Home & Termite Inspections

Accurate Home & Termite Inspections

4.91(
183
)

Accurate Home & Termite Inspections

4.91(
183
)
Customers say: Super punctual
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

We offer home inspections, termite inspections, radon testing, well inspections, septic inspections, and water testing. We are an owner-operated team of 4 inspectors who are thorough and honest. We service Fauquier county and all surrounding counties including Northern Virginia!

"It was perfect. It was excellent. He was very thorough. He took his time. He made sure we knew everything."

Travis m on December 2020

We offer home inspections, termite inspections, radon testing, well inspections, septic inspections, and water testing. We are an owner-operated team of 4 inspectors who are thorough and honest. We service Fauquier county and all surrounding counties including Northern Virginia!

"It was perfect. It was excellent. He was very thorough. He took his time. He made sure we knew everything."

Travis m on December 2020


Avatar for THE BUILDING INSPECTOR OF AMERICA

THE BUILDING INSPECTOR OF AMERICA

4.87(
167
)

THE BUILDING INSPECTOR OF AMERICA

4.87(
167
)
Customers say: Super punctual
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers

Prime Property Inspectors – The Building Inspector of America is a full-service home inspection and environmental testing company. Our certified home inspectors are professionals in engineering, architecture or construction and are current with emerging issues facing the home inspection industry. Our attention to detail is reflected in our comprehensive digital home inspection reports. Environmental services include evaluation and testing for radon gas, mold, volatile organic compounds, allergens, odors, electromagnetic fields and combustion by-products.

"I used this company to perform a home inspection before I bought my house. Due to its negligence and breach of contract, 9 months after I moved in, I had to replace the roof on the house. The company will do nothing to rectify the situation. They are cheats and liars that hide behind their contracts. Their inspectors take every shortcut, and they will not protect you during the home buying process. Just don’t use them."

Christina L on March 2021

Prime Property Inspectors – The Building Inspector of America is a full-service home inspection and environmental testing company. Our certified home inspectors are professionals in engineering, architecture or construction and are current with emerging issues facing the home inspection industry. Our attention to detail is reflected in our comprehensive digital home inspection reports. Environmental services include evaluation and testing for radon gas, mold, volatile organic compounds, allergens, odors, electromagnetic fields and combustion by-products.

"I used this company to perform a home inspection before I bought my house. Due to its negligence and breach of contract, 9 months after I moved in, I had to replace the roof on the house. The company will do nothing to rectify the situation. They are cheats and liars that hide behind their contracts. Their inspectors take every shortcut, and they will not protect you during the home buying process. Just don’t use them."

Christina L on March 2021

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Radon Detection and Reduction questions, answered by experts

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

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.

The short answer is no, air purifiers do not help with radon. While they certainly can improve the air quality of your home, they only clean pollutants from the air. Radon is radioactive, and it isn’t affected by the same filtration systems that handle other airborne particles, like dust and mold. The only thing that works is a radon mitigation system.

To determine whether you have radon in your home, you must run a test. Radon gas has no odor or color, so you won’t notice a concentration of radon. You could purchase a DIY test at a local hardware store, but it may not deliver completely trustworthy results. The best way to test and receive accurate results is to hire a local radon detection specialist.

The Dale City, VA 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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