Top-rated radon gas testers.

Get matched with top radon gas testers in your area

Enter your zip and get matched with up to 3 pros

Matching on HomeAdvisor

Share some details icon
Share some details about your home project.
Match with local pros icon
Within moments, match with highly-rated local pros.
Compare quotes icon
Compare quotes and choose the best pro for the job.

Radon gas testers in Ellicott City

Avatar for My Property Inspection
My Property Inspection
10205 Washingtonian Blvd #546
5.00(
1
)
Approved Pro
My Property Inspection
10205 Washingtonian Blvd #546
5.00(
1
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
15 local quotes requested

MY PROPERTY INSPECTION 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.

"Mark is a very responsible inspector, who conducts thorough inspections and provides professional advice."

Jenny L on February 2024

MY PROPERTY INSPECTION 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.

"Mark is a very responsible inspector, who conducts thorough inspections and provides professional advice."

Jenny L on February 2024


Your Home Matters Property Inspection Service, LLC
9400 Trumpet Lane
4.52(
136
)
Approved Pro
Your Home Matters Property Inspection Service, LLC
9400 Trumpet Lane
4.52(
136
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
31 local quotes requested

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 Mid-Atlantic Mold and Restoration
Mid-Atlantic Mold and Restoration
14820 Buckingham Court
5.00(
17
)
Approved Pro
Mid-Atlantic Mold and Restoration
14820 Buckingham Court
5.00(
17
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
24 years of experience

MMR is nationally certified, fully insured and specializes in all aspects of mold remediation and restoration. Unlike most mold companies, MMR offers free inspections and appointments at specific times (no 4 hour appt windows!). Most projects can begin the next day or a time convenient to you. MMR does not use sub-contractors or undocumented workers at any time. All employees are highly trained and very polite. We will leave your home or business clean and sanitary.

"Overall, job paid for was complete. Hoped getting the wall put back together was an option, but removing the mold was important"

Johnathan L on September 2023

MMR is nationally certified, fully insured and specializes in all aspects of mold remediation and restoration. Unlike most mold companies, MMR offers free inspections and appointments at specific times (no 4 hour appt windows!). Most projects can begin the next day or a time convenient to you. MMR does not use sub-contractors or undocumented workers at any time. All employees are highly trained and very polite. We will leave your home or business clean and sanitary.

"Overall, job paid for was complete. Hoped getting the wall put back together was an option, but removing the mold was important"

Johnathan L on September 2023


Avatar for The Best Air Quality and Restoration
The Best Air Quality and Restoration
1123 State Route 3 North 243
4.79(
217
)
Approved Pro
The Best Air Quality and Restoration
1123 State Route 3 North 243
4.79(
217
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
533 local quotes requested

Thebestairqualityandrestoration provides mold and air quality testing, mold remediation/removal and water damage restoration.Our focus is on you the customer to ensure our work is done right and meets your expectations. As the owner I strive to see that my business takes care of your issues. We work with a variety of customers and budgets to offer solutions customized to your needs.

"They did everything phenomenally"

Troy L on April 2024

Thebestairqualityandrestoration provides mold and air quality testing, mold remediation/removal and water damage restoration.Our focus is on you the customer to ensure our work is done right and meets your expectations. As the owner I strive to see that my business takes care of your issues. We work with a variety of customers and budgets to offer solutions customized to your needs.

"They did everything phenomenally"

Troy L on April 2024


Avatar for My Carpet Cleaning & Restoration Service
My Carpet Cleaning & Restoration Service
15704 Thompson Rd
4.94(
434
)
Approved Pro
My Carpet Cleaning & Restoration Service
15704 Thompson Rd
4.94(
434
)
Approved Pro
Customers say: Quality work
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
132 local quotes requested

My Carpet Cleaning & Restoration Services specializes in Providing Premium Cleaning & Restoration Services while Protecting the rest of your Home, Possessions and Environment. After working for several less than reputable companies, I decided the only way I could provide services that I could be proud of ethically and make a decent living was to go into business for myself. So I did and here I am nearly 30 Years later. Since 1992, I have been providing my services to Homeowners like you as well as some of the areas prominent Businesses, Churches, Government Offices, Nursing Homes, Office Buildings, Realtors, Restaurants, Schools, Sports Clubs etc. No matter what size the job, I place an Emphasis on Quality that is unsurpassed. If I'm not happy with the results, how can I expect them or you to be? As an I.I.C.R.C. Certified Firm and A Master Cleaner and Restorer I have the knowledge and expertise to not only to Provide You the Most Thorough Cleaning EVER or It's FREE! As the name implies, I Clean Carpet, very well I might add. I can also remove most Pet Stains & Odors. Upholstery Cleaning is performed to the highest levels attainable without risk of damaging the fabrics. Using multiple products, tools and Methodologies, I'll clean your fabrics as aggressively as Possible to get them as clean as Possible. Power Cleaning of Ceramic Tile is another service that We Excel in; renewing your floors appearance and removing the germs that are growing on your floor. Water Damage Restoration; Not only do we extract the water and dry the carpet, which is where most carpet cleaners stop, we actually dry the structure. Using Thermal Imaging and moisture probes to find the water others don't and then specialized Thermal Drying Equipment to dry the structure without totally gutting your home if possible. We'll return your home back to a Dry and Healthy Environment Then, we can put everything back together again, Restoring your home back to it's Pre-loss Condition!

"Herbert from My Carpet Cleaning & Restoration Services did an excellent job in our Ellicott City, MD home. He removed mounds of pet hair from our carpets, vacuumed and then shampooed them. He took his time, and was very thorough. The difference is amazing. Our whole home looks brighter, and is clean and fresh. We will definitely use My Carpet Cleaning & Restoration Services again in the future."

Mary K on March 2025

My Carpet Cleaning & Restoration Services specializes in Providing Premium Cleaning & Restoration Services while Protecting the rest of your Home, Possessions and Environment. After working for several less than reputable companies, I decided the only way I could provide services that I could be proud of ethically and make a decent living was to go into business for myself. So I did and here I am nearly 30 Years later. Since 1992, I have been providing my services to Homeowners like you as well as some of the areas prominent Businesses, Churches, Government Offices, Nursing Homes, Office Buildings, Realtors, Restaurants, Schools, Sports Clubs etc. No matter what size the job, I place an Emphasis on Quality that is unsurpassed. If I'm not happy with the results, how can I expect them or you to be? As an I.I.C.R.C. Certified Firm and A Master Cleaner and Restorer I have the knowledge and expertise to not only to Provide You the Most Thorough Cleaning EVER or It's FREE! As the name implies, I Clean Carpet, very well I might add. I can also remove most Pet Stains & Odors. Upholstery Cleaning is performed to the highest levels attainable without risk of damaging the fabrics. Using multiple products, tools and Methodologies, I'll clean your fabrics as aggressively as Possible to get them as clean as Possible. Power Cleaning of Ceramic Tile is another service that We Excel in; renewing your floors appearance and removing the germs that are growing on your floor. Water Damage Restoration; Not only do we extract the water and dry the carpet, which is where most carpet cleaners stop, we actually dry the structure. Using Thermal Imaging and moisture probes to find the water others don't and then specialized Thermal Drying Equipment to dry the structure without totally gutting your home if possible. We'll return your home back to a Dry and Healthy Environment Then, we can put everything back together again, Restoring your home back to it's Pre-loss Condition!

"Herbert from My Carpet Cleaning & Restoration Services did an excellent job in our Ellicott City, MD home. He removed mounds of pet hair from our carpets, vacuumed and then shampooed them. He took his time, and was very thorough. The difference is amazing. Our whole home looks brighter, and is clean and fresh. We will definitely use My Carpet Cleaning & Restoration Services again in the future."

Mary K on March 2025


Avatar for Reliable Lead Inspection Services
Reliable Lead Inspection Services
6351 Red Cedar Pl
4.97(
38
)
Approved Pro
Reliable Lead Inspection Services
6351 Red Cedar Pl
4.97(
38
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
58 local quotes requested

PROTECTING BY INSPECTING! Lead poisoning is no laughing matter. Worldwide, about 143,000 deaths per year result from lead poisoning, and lead paint is the most common perpetrator. You can prevent lead poisoning from taking a toll on you, your family, and your home by having your property inspected. Reliable Lead Inspection Services, LLC has helped countless homeowners across Baltimore, MD and the surrounding counties with their home lead inspections since 2014. The state of Maryland requires that all properties – including apartments, condos, townhouses, lofts, and single-family homes – built before 1978 have a new lead inspection certificate every time the property is rented or sold. Even if you’re not in the market to buy or sell property, it is always a sensible decision to have any home inspected before doing renovations. You never know what could be hiding in those walls! I can provide 24 hour results if needed. Available 7 days a week. MDE Lic #15208 Ask us about our Senior, Police, & military discounts!

"Norman, was very friendly, knowledgeable and informative. He explained everything he was doing through the process. I would highly recommend requesting Norman."

JIM S on January 2025

PROTECTING BY INSPECTING! Lead poisoning is no laughing matter. Worldwide, about 143,000 deaths per year result from lead poisoning, and lead paint is the most common perpetrator. You can prevent lead poisoning from taking a toll on you, your family, and your home by having your property inspected. Reliable Lead Inspection Services, LLC has helped countless homeowners across Baltimore, MD and the surrounding counties with their home lead inspections since 2014. The state of Maryland requires that all properties – including apartments, condos, townhouses, lofts, and single-family homes – built before 1978 have a new lead inspection certificate every time the property is rented or sold. Even if you’re not in the market to buy or sell property, it is always a sensible decision to have any home inspected before doing renovations. You never know what could be hiding in those walls! I can provide 24 hour results if needed. Available 7 days a week. MDE Lic #15208 Ask us about our Senior, Police, & military discounts!

"Norman, was very friendly, knowledgeable and informative. He explained everything he was doing through the process. I would highly recommend requesting Norman."

JIM S on January 2025


Avatar for Eco Pro Restoration
Eco Pro Restoration
7 Greenwood Place
4.73(
98
)
Approved Pro
Eco Pro Restoration
7 Greenwood Place
4.73(
98
)
Approved Pro
Customers say: Super punctual
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
127 local quotes requested

We are a locally owned and family operated in Baltimore, MD. Our company has been in service since 2000 and we have over 35 years of collective experience in the industry. Our company is one of the few companies in the area that offers Particle Testing. We accept all insurances. Do not let the your insurance company tell you what remediation company you should use. It is your right to choose your own. We look forward to hearing from you.

"Amazing Job at a great price!"

Mordechai K on November 2024

We are a locally owned and family operated in Baltimore, MD. Our company has been in service since 2000 and we have over 35 years of collective experience in the industry. Our company is one of the few companies in the area that offers Particle Testing. We accept all insurances. Do not let the your insurance company tell you what remediation company you should use. It is your right to choose your own. We look forward to hearing from you.

"Amazing Job at a great price!"

Mordechai K on November 2024


Avatar for Baltimore Home Specs, LLC
Baltimore Home Specs, LLC
9802 Magledt Rd
5.00(
3
)
Approved Pro
Baltimore Home Specs, LLC
9802 Magledt Rd
5.00(
3
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
198 local quotes requested

Home inspection company that covers the house from top to bottom. Covering from the roof to the basement and / or crawl space. Nothing is left un turned. Also, specialize in radon, mold, and lead testing. Former Level II Thermaligist (infrared scanning). I can do it all. I am also certified through the Baltimore city and county to conduct rental inspection.

"Chris was great. He explained everything that was checked and showed me all of the things I needed to know about the house. Would highly recommend him for anyone needing home inspection."

David M on March 2024

Home inspection company that covers the house from top to bottom. Covering from the roof to the basement and / or crawl space. Nothing is left un turned. Also, specialize in radon, mold, and lead testing. Former Level II Thermaligist (infrared scanning). I can do it all. I am also certified through the Baltimore city and county to conduct rental inspection.

"Chris was great. He explained everything that was checked and showed me all of the things I needed to know about the house. Would highly recommend him for anyone needing home inspection."

David M on March 2024


Avatar for Whitehead Environmental
Whitehead Environmental
Servicing Around
5.00(
18
)
Approved Pro
Whitehead Environmental
Servicing Around
5.00(
18
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
139 local quotes requested

Whitehead Environmental is a mold assessment and testing company. We don't offer remediation work so we are completely unbiased in our inspection. We have been inspecting and testing homes and business for almost 20 years. We pride ourselves in doing honest quality work.

"Keith was very friendly and personable. Appreciated the time he spent explaining the process. Did not feel he was rushed. Very willing and able to answer all our questions. He asked us questions."

Tim A on March 2023

Whitehead Environmental is a mold assessment and testing company. We don't offer remediation work so we are completely unbiased in our inspection. We have been inspecting and testing homes and business for almost 20 years. We pride ourselves in doing honest quality work.

"Keith was very friendly and personable. Appreciated the time he spent explaining the process. Did not feel he was rushed. Very willing and able to answer all our questions. He asked us questions."

Tim A on March 2023


Avatar for NextDay Inspect
NextDay Inspect
46179 Westlake Dr
4.95(
244
)
Approved Pro
NextDay Inspect
46179 Westlake Dr
4.95(
244
)
Approved Pro
Customers say: True professional
Recommended by 99% of Angi customers
Recommended by 99% of HomeAdvisor customers
730 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.

"Everything went well. The inspector was on time and delivered a detailed report on our house."

Derek C on April 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.

"Everything went well. The inspector was on time and delivered a detailed report on our house."

Derek C on April 2025

...
Showing 1-10 of 379

Radon gas testings FAQs

Radon gas is a serious health hazard, as it is the second leading cause of lung cancer in the United States. When inhaled, radon breaks down into radioactive particles that can damage lung tissue. Because radon is odorless and invisible, regular testing every two years is crucial to detect its presence. If you have recently remodeled or started using different areas of your home, like the basement, additional testing is essential to ensure your family's safety.

Yes, you need a radon test to ensure your home is safe. The EPA recommends testing your home for radon every two years and after any renovations. Since about one in every 15 homes has elevated radon levels, regular testing is essential. Including a radon test in your home inspection is crucial when buying or selling a property, and some areas require disclosure of radon levels by law. Don't rely on neighboring homes or regional data; the only way to know your home's radon levels is through testing.

Certified professionals conduct radon testing, including accredited home inspectors and specialized radon mitigation companies. These experts follow strict EPA guidelines and use calibrated instruments to accurately measure radon levels throughout your home. Choosing a certified provider ensures you receive reliable results that protect your family's health and property.Professional testing is crucial for accurate detection and effective mitigation if needed.

Radon inspectors typically specialize in testing and assessing radon levels but may not perform mitigation services themselves. If your radon inspector identifies elevated levels of radon in your home, they will recommend a qualified radon mitigation specialist to address the issue. These mitigation experts install systems designed to reduce radon concentrations effectively, ensuring your home is safe.

No, air purifiers are not effective in removing radon gas from your home. Air purifiers are designed to filter out particles like dust and pollen, but radon is a radioactive gas that cannot be captured by standard air filters. To reduce radon levels, you need a specialized radon mitigation system that removes the gas from your home, ensuring your indoor air remains safe.

While opening windows may temporarily reduce radon levels by allowing some gas to escape, it is not an effective long-term solution. Radon continuously enters your home from the soil, and relying on open windows is not practical or sufficient to reduce levels significantly. To effectively lower radon concentrations, you need a professional radon mitigation system that actively removes the gas, ensuring consistent and safe indoor air quality.

The homeowners guide to radon gas testings
From average costs to expert advice, get all the answers you need to get your job done.
professional testing the air quality in a home
Apr 14, 2025
Apr 14, 2025
Budget for the cost of an indoor air quality test based on factors such as home size, pollutant type, potential remediation needs, labor, and more.
sump pump radon gas removal system in basement of home
Mar 28, 2025
Mar 28, 2025
Budget for radon mitigation system costs based on factors such as location, permits, professional labor, system type, testing, and more.
radon gas testing equipment
Feb 26, 2025
Feb 26, 2025
A radon inspection is essential to ensure your home’s safety, with costs varying by home size, region, type of testing kit, and more.
Professional in protective suit removing mold from home
Feb 12, 2025
Feb 12, 2025
A mold infestation requires immediate inspection and remediation, with cost factors ranging from the type of mold to type of damage.
professional in protective suit removing asbestos from attic of home
Nov 13, 2024
Nov 13, 2024
Learn about the cost of asbestos removal, including factors such as area size, location, testing, preparation, and disposal.
Two professionals removing asbestos from a roof
Dec 2, 2024
Dec 2, 2024
What does asbestos testing cost? Find out, along with the most common cost factors, lab prices, and budgeting tips in this complete guide.
Share project details to get started.