Top-rated radon detection and reduction specialists.

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There are 11 highly-rated local radon detection and reduction specialists.

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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
63 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


"Excellent!"

Gianna R on September 2025

We are a family owned and operated business with over 25 years of experience. We have a vast amount of experience when dealing with all insurance companies.

"Excellent!"

Gianna R on September 2025


"Excellent job excellent people"

Denise W on June 2025

Leading the industry by providing a comprehensive service to residential & commercial clients in need of selective & structural demolition , hazardous material abatement and disposal , as well as mold remediation services. Call or click for your FREE estimate today!

"Excellent job excellent people"

Denise W on June 2025


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 H&G Restoration

H&G Restoration

3228 Harness Creek Rd
5.00(
12
)
Approved Pro

H&G Restoration

3228 Harness Creek Rd
5.00(
12
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

At H&G Restoration, we pride ourselves on delivering high-quality results through meticulous attention to detail and a customer-centric approach. Our team of seasoned professionals brings a wealth of experience and expertise to every project, ensuring that our clients receive not only innovative solutions but also exceptional service. We understand that every customer has unique needs and visions. That’s why we offer a range of options that allow our clients to see their final product before it reaches its final destination. From concept to completion, we are dedicated to making sure that each project meets the highest standards of quality and accuracy. With a strong track record of success and a reputation for reliability, H&G Restoration continues to build lasting relationships with clients by consistently exceeding expectations and delivering outstanding results.

"Outstanding service! I could not understand why my downstairs closet was extremely cold upon entry. During my first conversation with Phillip, he conveyed concern and dedication regarding identification and remediation of the unusually cold air. During initial visit, Phillip noted portions of closet were approximately 15 degrees colder than adjoining rooms. After conducting internal and external inspections of the nearby areas, he identified potential source of cold air. A couple days later with outside temperatures in the 20s, Phillip exhaustively sealed external areas of concern. A few days later, he came again to determine temperature differential within the closet. It was now much more comfortable with temperature only a few degrees below neighboring rooms! Throughout the entire process, Phillip was very friendly and knowledgeable."

Seth F on January 2022

At H&G Restoration, we pride ourselves on delivering high-quality results through meticulous attention to detail and a customer-centric approach. Our team of seasoned professionals brings a wealth of experience and expertise to every project, ensuring that our clients receive not only innovative solutions but also exceptional service. We understand that every customer has unique needs and visions. That’s why we offer a range of options that allow our clients to see their final product before it reaches its final destination. From concept to completion, we are dedicated to making sure that each project meets the highest standards of quality and accuracy. With a strong track record of success and a reputation for reliability, H&G Restoration continues to build lasting relationships with clients by consistently exceeding expectations and delivering outstanding results.

"Outstanding service! I could not understand why my downstairs closet was extremely cold upon entry. During my first conversation with Phillip, he conveyed concern and dedication regarding identification and remediation of the unusually cold air. During initial visit, Phillip noted portions of closet were approximately 15 degrees colder than adjoining rooms. After conducting internal and external inspections of the nearby areas, he identified potential source of cold air. A couple days later with outside temperatures in the 20s, Phillip exhaustively sealed external areas of concern. A few days later, he came again to determine temperature differential within the closet. It was now much more comfortable with temperature only a few degrees below neighboring rooms! Throughout the entire process, Phillip was very friendly and knowledgeable."

Seth F on January 2022


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


Avatar for L.O.O.K. Home Inspections

L.O.O.K. Home Inspections

No reviews yet

L.O.O.K. Home Inspections

No reviews yet

L.O.O.K. offers home inspection and environmental services to clients in the Washington Metropolitan Area. Our inspections are conducted with precision and attention to detail, enabling us to identify potential issues in your property. By providing you with thorough knowledge about your property, we enable you to make informed decisions about your future investment. At L.O.O.K., we understand that time is of the essence during the home buying process. Therefore, we offer SAME DAY inspection reports to help expedite the process. Our reports are comprehensive and include pictures and/or videos of all deficiencies, maintenance tips, and detailed diagrams that provide supplemental information. With L.O.O.K., you can trust that you will have all the information you need to make a confident choice about your future investment.

L.O.O.K. offers home inspection and environmental services to clients in the Washington Metropolitan Area. Our inspections are conducted with precision and attention to detail, enabling us to identify potential issues in your property. By providing you with thorough knowledge about your property, we enable you to make informed decisions about your future investment. At L.O.O.K., we understand that time is of the essence during the home buying process. Therefore, we offer SAME DAY inspection reports to help expedite the process. Our reports are comprehensive and include pictures and/or videos of all deficiencies, maintenance tips, and detailed diagrams that provide supplemental information. With L.O.O.K., you can trust that you will have all the information you need to make a confident choice about your future investment.


NE Radon Doctors Mid-Atlantic

No reviews yet

NE Radon Doctors Mid-Atlantic

No reviews yet

NE Radon Doctors Mid-Atlantic is a family owned business offering Radon Testing and Mitigation services in the Mid-Atlantic. We specialize in getting the job done right the first time, being clean, polite, having transparent pricing, and being on time.

NE Radon Doctors Mid-Atlantic is a family owned business offering Radon Testing and Mitigation services in the Mid-Atlantic. We specialize in getting the job done right the first time, being clean, polite, having transparent pricing, and being on time.


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.


"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

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Radon Detection and Reduction questions, answered by experts

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.

Testing typically costs between $150 and $500, depending on the method used and the number of areas tested.

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. 

A radon test has no effect on humans—only the radon in the air does. The test does not redistribute the radon that is already present so yes, it’s safe to be around the testing kit even if it isn’t safe to be in the room itself. The test absorbs and measures the radon, but doesn't absorb enough of it to make the room any safer.

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

The Millersville, 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.

What do you need done? We’ll find top pros.
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  • 🛠 "Fix a leaking pipe under the sink"
  • 🏠 "Repair shingles on an asphalt roof"