Top-rated radon detection and reduction specialists.

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Avatar for Lawson Home Services, LLC

Lawson Home Services, LLC

115 Atlantic Avenue
4.63(
35
)
Approved Pro

Lawson Home Services, LLC

115 Atlantic Avenue
4.63(
35
)
Approved Pro
Customers say: True professional
Recommended by 91% of Angi customers
Recommended by 91% of HomeAdvisor customers
83 local quotes requested

Full service Radon testing and mitigation, air duct and dryer vent cleaning, and blown-in attic insulation company. We service the entire state of Delaware and eastern Maryland.

"Very professional, knowledgeable, courteous and very customer focused. Would definitely use their services again!"

Chris A on November 2023

Full service Radon testing and mitigation, air duct and dryer vent cleaning, and blown-in attic insulation company. We service the entire state of Delaware and eastern Maryland.

"Very professional, knowledgeable, courteous and very customer focused. Would definitely use their services again!"

Chris A on November 2023


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
30 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(
298
)
Approved Pro

NextDay Inspect

46179 Westlake Dr
4.95(
298
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
391 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 was professional and thorough. He walked me through everything I asked about and pointed out items he thought warranted attention. No complaints. A+. I would recommend him any time."

Tom D on September 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 was professional and thorough. He walked me through everything I asked about and pointed out items he thought warranted attention. No complaints. A+. I would recommend him any time."

Tom D on September 2025


Avatar for Lawson Home Services, LLC

Lawson Home Services, LLC

115 Atlantic Avenue
4.78(
55
)
Approved Pro

Lawson Home Services, LLC

115 Atlantic Avenue
4.78(
55
)
Approved Pro
Customers say: Quality work
Recommended by 92% of Angi customers
Recommended by 92% of HomeAdvisor customers
170 local quotes requested

Lawson Home Services is the one that gets it done. We are professionals and will solve your radon problems quickly. From start to finish we are working to reduce your radon levels by doing the job correctly. Give us a call today.

"Excellent work!"

Chuck R on February 2024

Lawson Home Services is the one that gets it done. We are professionals and will solve your radon problems quickly. From start to finish we are working to reduce your radon levels by doing the job correctly. Give us a call today.

"Excellent work!"

Chuck R on February 2024


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


Callahan Inspection Services

2814 Wells Ave
5.00(
3
)

Callahan Inspection Services

2814 Wells Ave
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


Vane Property Inspections, LLC

Unknown
No reviews yet

Vane Property Inspections, LLC

Unknown
No reviews yet
14 years of experience

Vane Property Inspections LLC is a well known, professional, independently owned and operated home inspection company servicing home buyers, home sellers, home owners, and real estate agents.

Vane Property Inspections LLC is a well known, professional, independently owned and operated home inspection company servicing home buyers, home sellers, home owners, and real estate agents.


American Radon Professionals

487 Bainbridge Rd
No reviews yet

American Radon Professionals

487 Bainbridge Rd
No reviews yet
17 years of experience

American Radon Professionals is a business certified in the Measurement and Mitigation of Radon. We are certified by the E.P.A. and N.R.P.P. in both of these techniques. We will test your home for radon and, if it is present, remove it from the home through our mitigation services. We work around the clock to fit your mitigation needs. Open 24 hours daily. We accept cash, check, or credit. We have discounts for seniors as well as those who have found our services through Angie's List.

American Radon Professionals is a business certified in the Measurement and Mitigation of Radon. We are certified by the E.P.A. and N.R.P.P. in both of these techniques. We will test your home for radon and, if it is present, remove it from the home through our mitigation services. We work around the clock to fit your mitigation needs. Open 24 hours daily. We accept cash, check, or credit. We have discounts for seniors as well as those who have found our services through Angie's List.


The Home Detective

4.91(
45
)

The Home Detective

4.91(
45
)
Customers say: Quick response
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers

Home Inspections for Buyers, Sellers, Investors and Owners. Mold evaluation and sampling. Radon testing. Damp basement evaluation. Deck inspections. Consulting. We do NOT provide any repair service/remediation service to maintain a neutral, 3rd party position in the evaluation process. Serving Maryland, DC and Virginia since 1996. Licensed in MD/VA/DE ASHI Certified Inspector (American Society of Home Inspectors) MAHI (Maryland Association of Home Inspectors) NRSB (National Radon Safety Board) Certified Radon Specialist NADRA (North American Deck and Railing Association)

"Robert is FANTASTIC!!! The regulations that a typical home inspector must work by are not as thorough as most home buyers would prefer...luckily Robert is not quite typical. He is thorough to a T exploring the home from basement to chimney top. I would hire him for every home I look to buy in my future. Very confident and happy with his work."

Samuel R on July 2019

Home Inspections for Buyers, Sellers, Investors and Owners. Mold evaluation and sampling. Radon testing. Damp basement evaluation. Deck inspections. Consulting. We do NOT provide any repair service/remediation service to maintain a neutral, 3rd party position in the evaluation process. Serving Maryland, DC and Virginia since 1996. Licensed in MD/VA/DE ASHI Certified Inspector (American Society of Home Inspectors) MAHI (Maryland Association of Home Inspectors) NRSB (National Radon Safety Board) Certified Radon Specialist NADRA (North American Deck and Railing Association)

"Robert is FANTASTIC!!! The regulations that a typical home inspector must work by are not as thorough as most home buyers would prefer...luckily Robert is not quite typical. He is thorough to a T exploring the home from basement to chimney top. I would hire him for every home I look to buy in my future. Very confident and happy with his work."

Samuel R on July 2019


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Radon Detection and Reduction questions, answered by experts

Professional radon detection involves placing test kits in the lowest lived-in level of the house for a period, usually 48 hours to several months, followed by lab analysis of collected data.

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

Mold, VOCs, radon, carbon monoxide, and particulate matter are typically measured.

Properties should ideally be tested for radon every 2 to 5 years or sooner when changes to the property structure or ventilation occur that might impact airflow.

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.

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The Rock Hall, 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.