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Verified Reviews for Radon Detection And Reduction pros in Darlington, MD

*The Angi rating for Radon Detection And Reduction companies in Darlington, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Darlington, MD is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on December 12, 2025

Find Radon detection and reduction specialists in Darlington

Avatar for Guardian Basement Waterproofing

Guardian Basement Waterproofing

4.68(
19
)
•Approved Pro

Guardian Basement Waterproofing

4.68(
19
)
•Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
67 local quotes requested

Guardian Basement Waterproofing understands your basement waterproofing needs. We know how to detect the source of water intrusion and stop leaks before they happen. We help our customers reclaim their basements from water, mold and mildew by doing what we do best: finding and repairing the source of their water-related problems. Guardian uses only skilled and experienced technicians to do the job right the first time! As a basement waterproofing company with more than 40 years of waterproofing experience, Guardian stands behind its work with a Lifetime Guarantee. Additional phone number - (410) 484-9812.

"Avoid Guardian Basement – False Promises and Poor Customer Service Two years ago, I hired Guardian Basement to fix a water issue on the front wall of my basement. Joel came out, sold me on their system, and guaranteed I would have a dry basement. We also replaced two sump pumps and had the sump well dug deeper. The main selling point was their lifetime guarantee. Fast forward two years, and I have the exact same problem. Every time there is significant rain, water rushes through the same wall. I reached out to Guardian Basement, and Joel scheduled a time to check it out. His tone was completely different this time—defensive and dismissive. Within five minutes, he claimed, “Your system is clogged.” He made this assessment without any real inspection—just by looking at the cement floor and wall. Now, here’s the catch: If you look closely at their so-called lifetime warranty, clogs are not covered. So despite spending thousands of dollars, I’m back to square one. To make matters worse, Joel was incredibly condescending and unpleasant to deal with. After this experience, I looked into their licensing with the state of Maryland and found multiple complaints against them. I am now in the process of submitting my own complaint as well. I would never recommend Guardian Basement to anyone. Save your money and go with a company that truly knows what they are doing and stands behind their work. If I could give them a negative number of stars I would."

Kelly M on March 2025

Guardian Basement Waterproofing understands your basement waterproofing needs. We know how to detect the source of water intrusion and stop leaks before they happen. We help our customers reclaim their basements from water, mold and mildew by doing what we do best: finding and repairing the source of their water-related problems. Guardian uses only skilled and experienced technicians to do the job right the first time! As a basement waterproofing company with more than 40 years of waterproofing experience, Guardian stands behind its work with a Lifetime Guarantee. Additional phone number - (410) 484-9812.

"Avoid Guardian Basement – False Promises and Poor Customer Service Two years ago, I hired Guardian Basement to fix a water issue on the front wall of my basement. Joel came out, sold me on their system, and guaranteed I would have a dry basement. We also replaced two sump pumps and had the sump well dug deeper. The main selling point was their lifetime guarantee. Fast forward two years, and I have the exact same problem. Every time there is significant rain, water rushes through the same wall. I reached out to Guardian Basement, and Joel scheduled a time to check it out. His tone was completely different this time—defensive and dismissive. Within five minutes, he claimed, “Your system is clogged.” He made this assessment without any real inspection—just by looking at the cement floor and wall. Now, here’s the catch: If you look closely at their so-called lifetime warranty, clogs are not covered. So despite spending thousands of dollars, I’m back to square one. To make matters worse, Joel was incredibly condescending and unpleasant to deal with. After this experience, I looked into their licensing with the state of Maryland and found multiple complaints against them. I am now in the process of submitting my own complaint as well. I would never recommend Guardian Basement to anyone. Save your money and go with a company that truly knows what they are doing and stands behind their work. If I could give them a negative number of stars I would."

Kelly M on March 2025

Avatar for NextDay Inspect

NextDay Inspect

4.94(
315
)
•Approved Pro

NextDay Inspect

4.94(
315
)
•Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
404 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.

"Great dude! I would recommend!"

Harvir S on December 2025

Our goal is to protect our clients' interest by providing a thorough and detailed inspection of the property. Safeguarding our clients' investment is our priority. We provide residential home inspections, commercial building inspections, pre-drywall inspections, radon gas testing, and mold sampling. View the rate for your home inspection and scheduling availability on our website. Home Inspectors at NextDay Inspect® are licensed by the Department of Professional and Occupational Regulation (DPOR) and the Department of Labor, Licensing, and Regulation (DLLR). Upon completing the on-site inspection the inspector will prepare a report, including photographs taken at the property, and arrows with commentary detailing the areas of concern. Specialized tools are used to ensure a thorough inspection of the properties components. Some of these tools are thermometer, moisture & humidity meter, thermal infrared camera, outlet tester. We have an A plus rating with the Better Business Bureau.

"Great dude! I would recommend!"

Harvir S on December 2025

Avatar for Anvil Radon Services

Anvil Radon Services

5.00(
15
)

Anvil Radon Services

5.00(
15
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Extremely professional and personable service. I’m very pleased with the service I received."

Mark M on March 2023

Our mission is to be a provider that brings back the personal touch with our customers. We will build a relationship that will last a lifetime after you see our quality work. As a locally owned and operated business we feel invested in our clients and constantly strive for customer satisfaction. We won't leave until the job is done right! Call or click to schedule an estimate today!

"Extremely professional and personable service. I’m very pleased with the service I received."

Mark M on March 2023

Avatar for Callahan Inspection Services

Callahan Inspection Services

5.00(
3
)

Callahan Inspection Services

5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Licensed and insured, home inspection, rental inspection, mold testing, radon testing, water quality testing, air quality testing, wood destroying organisms inspection, and well and septic inspections

"Perfect. Inspection was completed and very detailed. The seller of our home was selling as is. But Found problems with the deck which resulted in the seller relaxing the deck. Even though seeker said they were not going to compete any repairs."

Armando Z on July 2021

Licensed and insured, home inspection, rental inspection, mold testing, radon testing, water quality testing, air quality testing, wood destroying organisms inspection, and well and septic inspections

"Perfect. Inspection was completed and very detailed. The seller of our home was selling as is. But Found problems with the deck which resulted in the seller relaxing the deck. Even though seeker said they were not going to compete any repairs."

Armando Z on July 2021

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

Avatar for Titleist Testing LLC

Titleist Testing LLC

5.00(
11
)

Titleist Testing LLC

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

Titleist Testing specializes in inspecting and sampling/testing of mold, lead paint, drinking water and radon. We are MDE (Maryland Dept. of the Environment) and NAMRI (National Association of Mold Remediators and Inspectors) accredited and certified for both mold and lead paint in Maryland and Washington DC. All lead paint and mold samples are sent to an accredited lab for analysis. You will be provided a full detailed report upon completion. Titleist Testing conducts radon testing for residential homes. We are NRPP (National Radon Proficiency Program) certified which allows a quicker turnaround on radon tests. We are an MDE certified water sampler for chlorine, bacteria, nitrates, copper and PH etc. We can handle any job whether it’s residential or commercial and pride ourselves on prompt reliable service, excellent communication and thorough job completion, Contact Titleist Testing today!.

"Mike was very professional and courteous and explained the entire process for radon testing in our house and with our water supply. He provided very quick turnaround on the results once the testing was complete and offered to answer any questions about the results."

Scott E on January 2019

Titleist Testing specializes in inspecting and sampling/testing of mold, lead paint, drinking water and radon. We are MDE (Maryland Dept. of the Environment) and NAMRI (National Association of Mold Remediators and Inspectors) accredited and certified for both mold and lead paint in Maryland and Washington DC. All lead paint and mold samples are sent to an accredited lab for analysis. You will be provided a full detailed report upon completion. Titleist Testing conducts radon testing for residential homes. We are NRPP (National Radon Proficiency Program) certified which allows a quicker turnaround on radon tests. We are an MDE certified water sampler for chlorine, bacteria, nitrates, copper and PH etc. We can handle any job whether it’s residential or commercial and pride ourselves on prompt reliable service, excellent communication and thorough job completion, Contact Titleist Testing today!.

"Mike was very professional and courteous and explained the entire process for radon testing in our house and with our water supply. He provided very quick turnaround on the results once the testing was complete and offered to answer any questions about the results."

Scott E on January 2019

IQ Home Inspections

5.00(
6
)

IQ Home Inspections

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

My home inspection includes an easy to understand narrative report, digital photos, $0 deductible 90 day warranty, a free recall check on the major appliances, and a free home maintenance book

"Mike was extremely thorough and answered all of our questions. His report was detailed and included all the information we needed! Definitely will recommend and use again."

Greg S on February 2018

My home inspection includes an easy to understand narrative report, digital photos, $0 deductible 90 day warranty, a free recall check on the major appliances, and a free home maintenance book

"Mike was extremely thorough and answered all of our questions. His report was detailed and included all the information we needed! Definitely will recommend and use again."

Greg S on February 2018

Keystone Home Inspections

5.00(
1
)

Keystone Home Inspections

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

Keystone Home Inspections is a local family owned business focused on customer service. I pride myself on giving each customer the best service possible. Whether thats scheduling around a clients hectic schedule or taking extra time to walk you through your dream home, were here for you!

Keystone Home Inspections is a local family owned business focused on customer service. I pride myself on giving each customer the best service possible. Whether thats scheduling around a clients hectic schedule or taking extra time to walk you through your dream home, were here for you!

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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.

You can buy DIY radon test kits from a home improvement store and conduct radon testing, but these tests are often inaccurate. No matter the result, you should supplement DIY testing with professional radon detection and analysis. DIYers only have access to passive radon tests, which aren’t as reliable as active tests that professionals use. Plus, it’s very easy for DIYers to make mistakes during testing, leading to inaccurate results. If you’re moving into a new home, have concerns about radon, or are due for an updated test, hire a professional. 

It is worthwhile to get radon testing done, especially if you haven’t in the past and don’t have active radon monitoring set up in your home. According to the American Lung Association, radon is a potential issue in all states, and testing is the best way to determine if it’s a current problem in your home. Radon testing includes professional tests that determine ongoing radon levels in your property, and it usually includes a mitigation protocol to help you decide what measures to take to protect your home and household members.

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

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

The Darlington, 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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