Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Saint James, MD

Enter your zip and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Saint James, MD?

Select your specific project to find the pro for you.

Find Radon detection and reduction specialists in Saint James

Avatar for Tri State Flood Inc

Tri State Flood Inc

3.50(
2
)
Approved Pro

Tri State Flood Inc

3.50(
2
)
Approved Pro
68 local quotes requested
21 years of experience

At Tri State Flood Inc, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: 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 damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025

At Tri State Flood Inc, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: 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 damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025


Avatar for NextDay Inspect

NextDay Inspect

4.94(
314
)
Approved Pro

NextDay Inspect

4.94(
314
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
494 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.

"The inspection taught us a lot about the house and the inspector was very knowledgeable."

Sumitha V on November 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.

"The inspection taught us a lot about the house and the inspector was very knowledgeable."

Sumitha V on November 2025


COS Environmental

No reviews yet

COS Environmental

No reviews yet

Radon Testing-Frederick, Montgomery, Washington and Carroll Counties in Maryland * NRPP -Professionally certified * State of the art Radon monitors * Results in as little as 48 hours * Sentrilock access for real estate transactions * Serving Frederick, Montgomery, Washington and Carroll Counties in Maryland * Accepts paypal, major credit cards, cash or check

Radon Testing-Frederick, Montgomery, Washington and Carroll Counties in Maryland * NRPP -Professionally certified * State of the art Radon monitors * Results in as little as 48 hours * Sentrilock access for real estate transactions * Serving Frederick, Montgomery, Washington and Carroll Counties in Maryland * Accepts paypal, major credit cards, cash or check


Avatar for Ellingwood Pro

Ellingwood Pro

5.00(
1
)

Ellingwood Pro

5.00(
1
)
9 years of experience

Welcome to Ellingwood Pro LLC, your number one source for certified home inspections in Berkeley, Jefferson, Hampshire, Hardy, and Morgan County West Virginia, and Allegany, Washington, and Frederick County Maryland. We are dedicated to providing our customers with the best home inspection, with an emphasis on using non-invasive, visual examinations to identify defects within specific systems and components of residential properties. Free Estimates Found on https://ellingwoodpro.com/free-estimate Geremey Engle, U.S. veteran, and owner of Ellingwood Pro LLC have come a long way from its beginnings as a licensed residential remodeling company and we are happy to shift focus and have the opportunity to offer Residential Home Inspections, Residential Walk & Talk Inspections, Radon Inspection, Termite Inspection, Rental Property Safety, and Condition Inspections, Pre-Listing Inspections and Quality Control Contractor Inspections to the community. Our background in residential remodeling makes us unique compared to other home inspectors and businesses as many home inspectors have little to no experience in construction. Ellingwood Pro will discover defects, explain causes, and recommend the appropriate subject matter expert to remedy the issue and have you feeling confident to negotiate the purchase of your new home. We hope you enjoy our services as much as we enjoy offering them to you. If you have any questions, comments, or recommendations, please don't hesitate to contact us.

Welcome to Ellingwood Pro LLC, your number one source for certified home inspections in Berkeley, Jefferson, Hampshire, Hardy, and Morgan County West Virginia, and Allegany, Washington, and Frederick County Maryland. We are dedicated to providing our customers with the best home inspection, with an emphasis on using non-invasive, visual examinations to identify defects within specific systems and components of residential properties. Free Estimates Found on https://ellingwoodpro.com/free-estimate Geremey Engle, U.S. veteran, and owner of Ellingwood Pro LLC have come a long way from its beginnings as a licensed residential remodeling company and we are happy to shift focus and have the opportunity to offer Residential Home Inspections, Residential Walk & Talk Inspections, Radon Inspection, Termite Inspection, Rental Property Safety, and Condition Inspections, Pre-Listing Inspections and Quality Control Contractor Inspections to the community. Our background in residential remodeling makes us unique compared to other home inspectors and businesses as many home inspectors have little to no experience in construction. Ellingwood Pro will discover defects, explain causes, and recommend the appropriate subject matter expert to remedy the issue and have you feeling confident to negotiate the purchase of your new home. We hope you enjoy our services as much as we enjoy offering them to you. If you have any questions, comments, or recommendations, please don't hesitate to contact us.


Avatar for Buyers Eyes Home Inspections LLC

Buyers Eyes Home Inspections LLC

5.00(
14
)

Buyers Eyes Home Inspections LLC

5.00(
14
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Buyers Eyes Home Inspections LLC is a locally owned and operated company that values honesty and integrity and will inspect your home as if we were buying it for ourselves. You will find us competitively priced. Licensed Home Inspector in Md. and Pa. Also Offering Radon Testing. Very detailed inspections with digital photos. Same day electronic reporting. I have been doing residential inspections for 35 years with a large insurance company so I am very experienced Now in business for myself. I am an electrician as well. **Also offering Radon Testing and Wood Destroying Insect Inspections. 301-676-7097

"Brett arrived on time and completed a detailed inspection of the interior and exterior. He also taught me about important aspects of home maintenance as he completed the assessment. The completed report was detailed and emailed to me very quickly."

Chris B on September 2021

Buyers Eyes Home Inspections LLC is a locally owned and operated company that values honesty and integrity and will inspect your home as if we were buying it for ourselves. You will find us competitively priced. Licensed Home Inspector in Md. and Pa. Also Offering Radon Testing. Very detailed inspections with digital photos. Same day electronic reporting. I have been doing residential inspections for 35 years with a large insurance company so I am very experienced Now in business for myself. I am an electrician as well. **Also offering Radon Testing and Wood Destroying Insect Inspections. 301-676-7097

"Brett arrived on time and completed a detailed inspection of the interior and exterior. He also taught me about important aspects of home maintenance as he completed the assessment. The completed report was detailed and emailed to me very quickly."

Chris B on September 2021


"AdvantaClean installed a radon mitigation system at my house. Within two years, the piping they put in on the outside of the house to vent the gas collapsed. Upon further inspection, the ~30ft., ~50lb. pipe had been affixed upright by two plastic ties screwed to the siding, and the weight of the pipe had caused the screws to tear through the thin plastic on both ties. Similar systems I've looked at in the neighborhood use lighter, metal, gutter-like pipes, and metal ties (stronger ties for lighter pipes!). When contacted, Dave (the owner) tried to get me to pay $300 to fix it, claiming that he otherwise "couldn't help me" because I couldn't reasonably expect their work to last for almost two years. He also said any kind of warranty was void because "wind damage" wasn't covered. The winds in Frederick topped out at 8mph the day it fell, but I guess he's right. It honestly WOULD be unreasonable to expect this quality of work to hold up to normal weather events (normal storms and winds in a fairly mild weather part of the country) and wear for two whole years! I'm frankly surprised it didn't fall earlier. Oh, and it took me calling AdvantaClean three times to get ahold of him (thought I was promised a call back each time!), but that's way less egregious than the whole "doing sub-par work and trying to get me to pay for it when it failed" thing."

Sam G on August 2022

Specializing in emergency water damage mitigation, mold remediation, moisture control, Radon mitigation systems and air duct cleaning for residential, commercial and industrial customers.

"AdvantaClean installed a radon mitigation system at my house. Within two years, the piping they put in on the outside of the house to vent the gas collapsed. Upon further inspection, the ~30ft., ~50lb. pipe had been affixed upright by two plastic ties screwed to the siding, and the weight of the pipe had caused the screws to tear through the thin plastic on both ties. Similar systems I've looked at in the neighborhood use lighter, metal, gutter-like pipes, and metal ties (stronger ties for lighter pipes!). When contacted, Dave (the owner) tried to get me to pay $300 to fix it, claiming that he otherwise "couldn't help me" because I couldn't reasonably expect their work to last for almost two years. He also said any kind of warranty was void because "wind damage" wasn't covered. The winds in Frederick topped out at 8mph the day it fell, but I guess he's right. It honestly WOULD be unreasonable to expect this quality of work to hold up to normal weather events (normal storms and winds in a fairly mild weather part of the country) and wear for two whole years! I'm frankly surprised it didn't fall earlier. Oh, and it took me calling AdvantaClean three times to get ahold of him (thought I was promised a call back each time!), but that's way less egregious than the whole "doing sub-par work and trying to get me to pay for it when it failed" thing."

Sam G on August 2022



Avatar for RC Air & Mold Solutions

RC Air & Mold Solutions

5.00(
11
)

RC Air & Mold Solutions

5.00(
11
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

If you are concerned about the possibility you have mold in your home or see evidence of mold growth, contact us immediately! We have experienced Certified Mold Inspectors (CMI #81281) who will come in and do a complete inspection of your home or business. We are positioned to provide an assessment of the indoor air quality or environmental quality concern of private homes, commercial buildings and institutional complexes. If necessary, we will take air samples in the area of concern to determine the levels of contamination. If visible mold is present, we can do surface testing to determine the species of mold. Testing samples are sent to a non-affiliated leading environmental testing firm and test results are back after 48 hours.* After a review of laboratory results from samples taken while onsite and from our visual inspection, we can recommend and refer you to proper mold remediation companies that can correct the issue if deemed necessary. Your safety is our main concern and to the best of our ability, we will be there to help you have “The Safest Air You Can Breathe!” Your peace of mind is our best reward.

"Absolutely phenomenal Robert and Cindy are amazing to work with and make sure that the client is also educated which is extremely important in today’s modern age!"

Donald R on September 2023

If you are concerned about the possibility you have mold in your home or see evidence of mold growth, contact us immediately! We have experienced Certified Mold Inspectors (CMI #81281) who will come in and do a complete inspection of your home or business. We are positioned to provide an assessment of the indoor air quality or environmental quality concern of private homes, commercial buildings and institutional complexes. If necessary, we will take air samples in the area of concern to determine the levels of contamination. If visible mold is present, we can do surface testing to determine the species of mold. Testing samples are sent to a non-affiliated leading environmental testing firm and test results are back after 48 hours.* After a review of laboratory results from samples taken while onsite and from our visual inspection, we can recommend and refer you to proper mold remediation companies that can correct the issue if deemed necessary. Your safety is our main concern and to the best of our ability, we will be there to help you have “The Safest Air You Can Breathe!” Your peace of mind is our best reward.

"Absolutely phenomenal Robert and Cindy are amazing to work with and make sure that the client is also educated which is extremely important in today’s modern age!"

Donald R on September 2023



Baxter Group, Inc.

5.00(
1
)

Baxter Group, Inc.

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

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

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

Showing 1-10 of 16
Radon Detection and Reduction questions, answered by experts

Results from radon testing usually take a week to process after the test period ends, with expedited services sometimes available for urgent cases.

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.

A professional indoor air quality inspection takes anywhere from one to three hours, depending on the size of your home and the number of necessary samples. After the test, the specialist will discuss the findings, but you won’t get a full written report for 2 to 10 days, though you can ask your pro to expedite the process, if needed. 

Yes, radon testing is absolutely necessary if you suspect the presence of this hazardous gas, and the Environmental Protection Agency (EPA) recommends testing for all homes in the country. Radon is a pervasive natural gas that can leak through your home’s foundation and seep into the living areas. Unfortunately, the gas is highly carcinogenic and is the second leading cause of lung cancer. Radon testing is crucial for keeping you and your family safe from harm, so hire a radon mitigation specialist to test your home if you suspect its presence in your home.

Costs depend on property size, test types, and additional services like mold sampling.

The Saint James, 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.