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    Verified radon detection and reduction services reviews

Find Radon detection and reduction specialists in Fort Washington

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
18 years of experience

Our goal is to protect our clients' interest by providing a thorough and detailed inspection of the property. With over 30,000 inspections completed, 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, InterNACHI, and NRSB. 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, and outlet tester. We have an 'A+' 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. With over 30,000 inspections completed, 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, InterNACHI, and NRSB. 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, and outlet tester. We have an 'A+' 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 MoldGone LLC

MoldGone LLC

4.93(
812
)
Approved Pro

MoldGone LLC

4.93(
812
)
Approved Pro
Customers say: True professional
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
20 years of experience

MoldGone is a full service mold inspection, air quality testing, remediation, and reconstruction company with over a decade of experience. Our inspectors and technicians carry the highest and most recognized certifications in the industry. Whether your are a residential or commercial customer seeking mold testing or remediation services you can be assured that the project will be professionally managed and properly certified. There are many companies that offer mold remediation - make sure that the company you choose has an industry recognized mold remediation or inspection certification such as the American Council of Accredited Certification (ACAC) or equivalent. MoldGone is unsurpassed in its commitment to customer service excellence, provision of only the highest caliber service, and providing unsurpassed value in every project or inspection delivered. MoldGone's customers have ranged from the residential homeowner to private schools and churches. In fact, when the Sisters at a private Catholic girls school in the Washington, D.C. area needed a company to treat mold in the Sister's private archive room, complete with 100 year-old manuscripts, they entrusted MoldGone, LLC to do the project. On another project that involved removing mold from a 30 foot ceiling above a filled indoor pool, when the scaffolding company wanted several thousand dollars to build the necessary scaffold to reach the treatment area MoldGone built its own providing the customer significant savings. At MoldGone, LLC. we constantly strive to find the most cost effective way to fully address each and every mold condition. MoldGone technicians are trained specifically for mold treatment and remediation. They are also required to have construction experience since many of our projects involve demolition and reconstruction. Technicians are held to the utmost highest levels of quality with each project receiving a thorough walkthrough by management before it is deemed complete.

"Went okay"

Brandon B on September 2025

MoldGone is a full service mold inspection, air quality testing, remediation, and reconstruction company with over a decade of experience. Our inspectors and technicians carry the highest and most recognized certifications in the industry. Whether your are a residential or commercial customer seeking mold testing or remediation services you can be assured that the project will be professionally managed and properly certified. There are many companies that offer mold remediation - make sure that the company you choose has an industry recognized mold remediation or inspection certification such as the American Council of Accredited Certification (ACAC) or equivalent. MoldGone is unsurpassed in its commitment to customer service excellence, provision of only the highest caliber service, and providing unsurpassed value in every project or inspection delivered. MoldGone's customers have ranged from the residential homeowner to private schools and churches. In fact, when the Sisters at a private Catholic girls school in the Washington, D.C. area needed a company to treat mold in the Sister's private archive room, complete with 100 year-old manuscripts, they entrusted MoldGone, LLC to do the project. On another project that involved removing mold from a 30 foot ceiling above a filled indoor pool, when the scaffolding company wanted several thousand dollars to build the necessary scaffold to reach the treatment area MoldGone built its own providing the customer significant savings. At MoldGone, LLC. we constantly strive to find the most cost effective way to fully address each and every mold condition. MoldGone technicians are trained specifically for mold treatment and remediation. They are also required to have construction experience since many of our projects involve demolition and reconstruction. Technicians are held to the utmost highest levels of quality with each project receiving a thorough walkthrough by management before it is deemed complete.

"Went okay"

Brandon B on September 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
18 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


County Large Home Inspections

4.52(
55
)
Approved Pro

County Large Home Inspections

4.52(
55
)
Approved Pro
Customers say: Quick response
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
27 years of experience

County Large Home Inspections, in business since 1999, is your locally owned and operated Inspection business. We have many years of experience to give you confidence that we are your number one choice for your next home project. Call us today and we look forward to your future business! Licensed Home Inspector.

"Very professional. I got the results back within a week as he started during the inspection."

Jennette R on October 2022

County Large Home Inspections, in business since 1999, is your locally owned and operated Inspection business. We have many years of experience to give you confidence that we are your number one choice for your next home project. Call us today and we look forward to your future business! Licensed Home Inspector.

"Very professional. I got the results back within a week as he started during the inspection."

Jennette R on October 2022


Avatar for D & H Demolition, LLC

D & H Demolition, LLC

5.00(
11
)
Approved Pro

D & H Demolition, LLC

5.00(
11
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
13 years of experience

Leading the industry by providing a comprehensive service to residential & commercial clients in need of selective & structural demolition , hazardous material abatement and disposal , as well as mold remediation services. Call or click for your FREE estimate today!

"Excellent job excellent people"

Denise W on June 2025

Leading the industry by providing a comprehensive service to residential & commercial clients in need of selective & structural demolition , hazardous material abatement and disposal , as well as mold remediation services. Call or click for your FREE estimate today!

"Excellent job excellent people"

Denise W on June 2025


Avatar for Restoration 1 of Washington DC

Restoration 1 of Washington DC

5.00(
10
)
Approved Pro

Restoration 1 of Washington DC

5.00(
10
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
5 years of experience

We specialize in water, fire, and smoke damage restoration services, along with mold remediation, water extraction, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Easy 5 star rating, they did a great job! I had a short timeline to accomplish as much remediation as possible. Benji provided effective options to restore our space, his bid was competitively priced and he was very communicative and set honest expectations which he then delivered on. His team (Dequan, David, Maurice and Randy) were so accommodating. I wish every contractor I hired worked this way. Thank you!"

Halley S on June 2023

We specialize in water, fire, and smoke damage restoration services, along with mold remediation, water extraction, and more! We guarantee your satisfaction, and we won’t leave until the job is done right. We pride ourselves on the quality work we provide, while delivering great customer service! Check out all the services we offer below and call -or- click to schedule a free estimate today!

"Easy 5 star rating, they did a great job! I had a short timeline to accomplish as much remediation as possible. Benji provided effective options to restore our space, his bid was competitively priced and he was very communicative and set honest expectations which he then delivered on. His team (Dequan, David, Maurice and Randy) were so accommodating. I wish every contractor I hired worked this way. Thank you!"

Halley S on June 2023


Your Home Matters Property Inspection Service, LLC

4.52(
136
)
Approved Pro

Your Home Matters Property Inspection Service, LLC

4.52(
136
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
22 years of experience

If you are in need of a quality home inspection Your Home Matters Property Inspection, is your answer. They're quick and efficient and will be straight to the point. "What matters to you matters to us"

"Mr. Stephan Baker did an excellent roof inspection. He is very knowledgeable. He explained every steps of the inspection and answered patently all my questions. And he provided the inspection report timely. I am very satisfied with his service."

JINHUI H on December 2024

If you are in need of a quality home inspection Your Home Matters Property Inspection, is your answer. They're quick and efficient and will be straight to the point. "What matters to you matters to us"

"Mr. Stephan Baker did an excellent roof inspection. He is very knowledgeable. He explained every steps of the inspection and answered patently all my questions. And he provided the inspection report timely. I am very satisfied with his service."

JINHUI H on December 2024


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
20 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 911 Restoration by Germain Brothers LLC

911 Restoration by Germain Brothers LLC

New on AngiNew on Angi
Approved Pro

911 Restoration by Germain Brothers LLC

New on AngiNew on Angi
Approved Pro
10 years of experience
Free onsite estimate

At 911 Restoration by Germain Brothers LLC, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of mold, water, fires and storms. Here’s what sets us apart: Mold Remediation: Our certified experts assess and isolate mold contamination, ensuring thorough removal and preventing further spore spread. We identify the root cause, devise effective solutions, and prioritize your safety. Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm and fire damage repairs, as well as basement flood cleanup Choose 911 Restoration by Germain Brothers LLC for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

At 911 Restoration by Germain Brothers LLC, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of mold, water, fires and storms. Here’s what sets us apart: Mold Remediation: Our certified experts assess and isolate mold contamination, ensuring thorough removal and preventing further spore spread. We identify the root cause, devise effective solutions, and prioritize your safety. Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm and fire damage repairs, as well as basement flood cleanup Choose 911 Restoration by Germain Brothers LLC for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.


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

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Radon Detection and Reduction questions, answered by experts

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.

Testing every 2-5 years or upon adjusting occupancy or structural changes maintains safe environments.

A radon test has no effect on humans—only the radon in the air does. The test does not redistribute the radon that is already present so yes, it’s safe to be around the testing kit even if it isn’t safe to be in the room itself. The test absorbs and measures the radon, but doesn't absorb enough of it to make the room any safer.

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

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 Fort Washington, MD 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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