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    Verified radon detection and reduction services reviews

Find Radon detection and reduction specialists in Frederick

Avatar for Tri State Flood Inc

Tri State Flood Inc

10 Grant Ave W
2.00(
1
)
Approved Pro

Tri State Flood Inc

10 Grant Ave W
2.00(
1
)
Approved Pro
168 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 Restoration 1 of Centreville

Restoration 1 of Centreville

5.00(
4
)
Approved Pro

Restoration 1 of Centreville

5.00(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
41 local quotes requested

Restoration 1 Offers Water Damage, Fire Damage, and Mold Remediation Services. Proudly Serving Centreville and Surrounding Areas. Our Certified Technicians work with ALL insurance carriers Water can wreak havoc on your property if not dealt with quickly. The same thing happens with fire and smoke and mold. If your property has been affected by a natural disaster, a hidden leak, a burst pipe, or a fire, contact Restoration 1 of Centreville. We offer comprehensive restoration services. Our team members are trained and certified by the Institute of Inspection, Cleaning, and Restoration Certification (IICRC) and the Indoor Air Quality Association (IAQA). We are also licensed and insured with years of experience and a reputation for professionalism and craftsmanship. We provide reconstruction, remodeling, sanitation, and other services designed to help you get back home as quickly as possible. We’re here to help you get your life back. Don’t hesitate to call us at (877)Water-16 877-928-3716 for the help you need during this time in Manassas, Fairfax, Chantilly, Clifton, or a surrounding area.

"Restoration 1 of Centerville is the ONLY company I would use and TRUST when it comes to water leaks and damage. Georg and his team Bassam and Preston came ASAP. Georg explained what options we have if we used insurance or paid out of pocket. They helped me understand the process of getting the basement dry without creating mold! He told us the pros and cons of whether we should keep our carpet or remove it to save money and resolve the water damage as quickly as possible. They made a VERY stressful situation, seem pain free! THANK YOU!! I am so grateful for their professional services, kindness and Communication of eta when they will be arriving to my home. My basement is now ALL dry and safe from mold!! I highly recommend Restoration 1 of Centerville!"

Teri M on May 2025

Restoration 1 Offers Water Damage, Fire Damage, and Mold Remediation Services. Proudly Serving Centreville and Surrounding Areas. Our Certified Technicians work with ALL insurance carriers Water can wreak havoc on your property if not dealt with quickly. The same thing happens with fire and smoke and mold. If your property has been affected by a natural disaster, a hidden leak, a burst pipe, or a fire, contact Restoration 1 of Centreville. We offer comprehensive restoration services. Our team members are trained and certified by the Institute of Inspection, Cleaning, and Restoration Certification (IICRC) and the Indoor Air Quality Association (IAQA). We are also licensed and insured with years of experience and a reputation for professionalism and craftsmanship. We provide reconstruction, remodeling, sanitation, and other services designed to help you get back home as quickly as possible. We’re here to help you get your life back. Don’t hesitate to call us at (877)Water-16 877-928-3716 for the help you need during this time in Manassas, Fairfax, Chantilly, Clifton, or a surrounding area.

"Restoration 1 of Centerville is the ONLY company I would use and TRUST when it comes to water leaks and damage. Georg and his team Bassam and Preston came ASAP. Georg explained what options we have if we used insurance or paid out of pocket. They helped me understand the process of getting the basement dry without creating mold! He told us the pros and cons of whether we should keep our carpet or remove it to save money and resolve the water damage as quickly as possible. They made a VERY stressful situation, seem pain free! THANK YOU!! I am so grateful for their professional services, kindness and Communication of eta when they will be arriving to my home. My basement is now ALL dry and safe from mold!! I highly recommend Restoration 1 of Centerville!"

Teri M on May 2025


Wilbur Hull Nano Cleaning Solutions, LLC

308 South Fayette St
4.93(
14
)
Approved Pro

Wilbur Hull Nano Cleaning Solutions, LLC

308 South Fayette St
4.93(
14
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
144 local quotes requested

Professional Mold remediation services at affordable prices! We have the experience and dedication to get the job done right! Specializing in Mold Testing and Remediation services, 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! Call or click to schedule a free estimate today!

"Will (owner) was very prompt in responding to my questions. I decided to proceed directly to treatment (skip testing) due to a prior mold problem in basement. Because he had an opening in his schedule that week, I decided to take care of the treatment right away. His team was very polite and professional and answered all of my questions. It took only about an hour to treat my entire house. Very happy with the service I received."

Nora W on July 2025

Professional Mold remediation services at affordable prices! We have the experience and dedication to get the job done right! Specializing in Mold Testing and Remediation services, 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! Call or click to schedule a free estimate today!

"Will (owner) was very prompt in responding to my questions. I decided to proceed directly to treatment (skip testing) due to a prior mold problem in basement. Because he had an opening in his schedule that week, I decided to take care of the treatment right away. His team was very polite and professional and answered all of my questions. It took only about an hour to treat my entire house. Very happy with the service I received."

Nora W on July 2025


Avatar for Water Damage America

Water Damage America

1020 N HIGHLAND ST
4.97(
76
)
Approved Pro

Water Damage America

1020 N HIGHLAND ST
4.97(
76
)
Approved Pro
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
51 local quotes requested

Water Damage America provides the best and most reliable restoration services, we sustain our business on quality and integrity. We are experts in Water Damage and Water Mitigation Services. We are committed to quality from the beginning to the end of your project. We look forward to earning your business. We always work according to IICRC standards in restoration. We are always available 24/7 for our valuable people to put them out of any Water Damage-related emergency.

"They did a good job. They were reliable. They would inform you if there was an issue and they did what they said they would do. I would give them 10 stars! I would hire them immediately if needed."

ERIC K on March 2021

Water Damage America provides the best and most reliable restoration services, we sustain our business on quality and integrity. We are experts in Water Damage and Water Mitigation Services. We are committed to quality from the beginning to the end of your project. We look forward to earning your business. We always work according to IICRC standards in restoration. We are always available 24/7 for our valuable people to put them out of any Water Damage-related emergency.

"They did a good job. They were reliable. They would inform you if there was an issue and they did what they said they would do. I would give them 10 stars! I would hire them immediately if needed."

ERIC K on March 2021


Avatar for Boston Environmental & Contracting, Inc

Boston Environmental & Contracting, Inc

1818 New York Ave NE
4.00(
8
)
Approved Pro

Boston Environmental & Contracting, Inc

1818 New York Ave NE
4.00(
8
)
Approved Pro
Customers say: True professional
204 local quotes requested
19 years of experience

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

"I did not use them, I don't live in DC"

Edward R on February 2019

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

"I did not use them, I don't live in DC"

Edward R on February 2019


Avatar for NextDay Inspect

NextDay Inspect

46179 Westlake Dr
4.94(
310
)
Approved Pro

NextDay Inspect

46179 Westlake Dr
4.94(
310
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
478 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.

"Matt did a great job on our home inspection. He spent a long time meticulously going over the home and showed us all the issues."

Cayleigh L on October 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.

"Matt did a great job on our home inspection. He spent a long time meticulously going over the home and showed us all the issues."

Cayleigh L on October 2025


Avatar for NextDay Inspect®

NextDay Inspect®

46179 Westlake Drive
4.90(
530
)
Approved Pro

NextDay Inspect®

46179 Westlake Drive
4.90(
530
)
Approved Pro
Customers say: True professional
157 local quotes requested
17 years of experience

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.

"Yang Li from Next Day Inspect did our home inspection. He was on time, clear, and thorough, spotting things like deck issues and minor plumbing. Made it easy for a first-time buyer. Recommend him. 5 stars."

Maryam Z on October 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.

"Yang Li from Next Day Inspect did our home inspection. He was on time, clear, and thorough, spotting things like deck issues and minor plumbing. Made it easy for a first-time buyer. Recommend him. 5 stars."

Maryam Z on October 2025


"Professionally"

Asoka K on March 2024

Lead inspection/abatement-MD/DC/VA Hazmat inspection Home Improvement Bathroom Remodeling Asbestos inspection MD/DC/VA Mold inspection and remediation IAQ Investigation CIH consulting services

"Professionally"

Asoka K on March 2024


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


DistrictInspect

1335 Rockville Pike
No reviews yet

DistrictInspect

1335 Rockville Pike
No reviews yet

The Inspection of the Home undertaken by our team will reveal to you the condition of your home and what you have to do to remedy any identified problem. A very attractive, easy to read, easily accessible, and retrievable report is released to you in no time. Our inspection experts gather data utilizing their mobile devices and have a report of inspection delivered to you shortly after the completion of the inspection. The Home Inspection carried out by our certified inspectors will reveal to you the true state of every component of your home from the Exterior: Water Control Systems, Structure, Roof, Ventilation, and Insulation to the Interior: Plumbing, HVAC, Electrical, Fuel Services, Appliances, Environmental Systems, etc. Whenever we discover issues, we recommend to you the best ways of fixing them. commercial, and residential inspection services. We inspect your house to find out whether termites are destroying any wooden part of your house outside or within your apartment. We are known for scheduling inspections to the convenience of our clients, we provide superlative on-site experience, and deliver the finest inspection reports electronically. We will facilitate your business transaction and that of your Real Estate Agent. Our team of certified inspectors is second to none as far as inspection business is concerned. We will render a superlative inspection service to you! We are going to provide you with useful information about your house together with property using approaches that are down-to-earth and low-key.

The Inspection of the Home undertaken by our team will reveal to you the condition of your home and what you have to do to remedy any identified problem. A very attractive, easy to read, easily accessible, and retrievable report is released to you in no time. Our inspection experts gather data utilizing their mobile devices and have a report of inspection delivered to you shortly after the completion of the inspection. The Home Inspection carried out by our certified inspectors will reveal to you the true state of every component of your home from the Exterior: Water Control Systems, Structure, Roof, Ventilation, and Insulation to the Interior: Plumbing, HVAC, Electrical, Fuel Services, Appliances, Environmental Systems, etc. Whenever we discover issues, we recommend to you the best ways of fixing them. commercial, and residential inspection services. We inspect your house to find out whether termites are destroying any wooden part of your house outside or within your apartment. We are known for scheduling inspections to the convenience of our clients, we provide superlative on-site experience, and deliver the finest inspection reports electronically. We will facilitate your business transaction and that of your Real Estate Agent. Our team of certified inspectors is second to none as far as inspection business is concerned. We will render a superlative inspection service to you! We are going to provide you with useful information about your house together with property using approaches that are down-to-earth and low-key.

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Radon Detection and Reduction questions, answered by experts

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

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

In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.

Sampling typically takes 1-3 hours, and depending on the provider, lab results are available within 2-7 days.

Costs for radon detection services typically range from $150 to $250, depending on the testing method and whether a professional assessment is required.

The Frederick, 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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