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Radon gas testers in Chester

Avatar for In and Out Home Inspections, LLC
In and Out Home Inspections, LLC
11722 Back Creek Road
4.86(
84
)
Approved Pro
In and Out Home Inspections, LLC
11722 Back Creek Road
4.86(
84
)
Approved Pro
Super Service Award
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers
18 local quotes requested

Here at, In and Out Home Inspections, LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Excellent and extremely thorough!"

Frank F on June 2024

Here at, In and Out Home Inspections, LLC, we pride our company on reliability, great communication, integrity, and quality work. We strongly believe in giving our absolute best in all of our projects no matter how big or small. We are experts in our trade and will always keep you educated on your particular task or project. We look forward to earning your business!

"Excellent and extremely thorough!"

Frank F on June 2024


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
51 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


Avatar for Mid-Atlantic Mold and Restoration
Mid-Atlantic Mold and Restoration
14820 Buckingham Court
5.00(
17
)
Approved Pro
Mid-Atlantic Mold and Restoration
14820 Buckingham Court
5.00(
17
)
Approved Pro
Customers say: True professional
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
24 years of experience

MMR is nationally certified, fully insured and specializes in all aspects of mold remediation and restoration. Unlike most mold companies, MMR offers free inspections and appointments at specific times (no 4 hour appt windows!). Most projects can begin the next day or a time convenient to you. MMR does not use sub-contractors or undocumented workers at any time. All employees are highly trained and very polite. We will leave your home or business clean and sanitary.

"Overall, job paid for was complete. Hoped getting the wall put back together was an option, but removing the mold was important"

Johnathan L on September 2023

MMR is nationally certified, fully insured and specializes in all aspects of mold remediation and restoration. Unlike most mold companies, MMR offers free inspections and appointments at specific times (no 4 hour appt windows!). Most projects can begin the next day or a time convenient to you. MMR does not use sub-contractors or undocumented workers at any time. All employees are highly trained and very polite. We will leave your home or business clean and sanitary.

"Overall, job paid for was complete. Hoped getting the wall put back together was an option, but removing the mold was important"

Johnathan L on September 2023


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
264 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 PuroClean Emergency Restoration Specialists
PuroClean Emergency Restoration Specialists
216-F Log Canoe Cir
4.73(
15
)
Approved Pro
PuroClean Emergency Restoration Specialists
216-F Log Canoe Cir
4.73(
15
)
Approved Pro
Customers say: Quick response
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
220 local quotes requested

PuroClean, a leader in property emergency services, helps families and businesses overcome the devastating setbacks caused by water, fire, mold and other conditions resulting in property damage. Each of our independently owned franchises pledge to do whatever it takes to respond, restore and rescue properties in all of the communities we serve.

"PuroClean in Stevensville has now worked with me through two separate flood disasters to my home. In both instances they were professional, accessible, and did excellent work. Past reviews on Angie’s List (through 2016) May not reflect the company’s high quality performance under new ownership. I would recommend this PuroClean to family and friends."

Josh F on May 2018

PuroClean, a leader in property emergency services, helps families and businesses overcome the devastating setbacks caused by water, fire, mold and other conditions resulting in property damage. Each of our independently owned franchises pledge to do whatever it takes to respond, restore and rescue properties in all of the communities we serve.

"PuroClean in Stevensville has now worked with me through two separate flood disasters to my home. In both instances they were professional, accessible, and did excellent work. Past reviews on Angie’s List (through 2016) May not reflect the company’s high quality performance under new ownership. I would recommend this PuroClean to family and friends."

Josh F on May 2018


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
140 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(
271
)
Approved Pro
NextDay Inspect
46179 Westlake Dr
4.95(
271
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
838 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 experience and very detailed report, highly recommend this company."

Antonio E on June 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 experience and very detailed report, highly recommend this company."

Antonio E on June 2025


Insurance Claims Specialist, LLC.
513 46th Street
5.00(
12
)
Insurance Claims Specialist, LLC.
513 46th Street
5.00(
12
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Insurance Claims Specialist, LLC. is a Maryland Licensed Public Adjusting Firm that represents Home & Business Owners to MAXIMIZE their property damage insurance claim recovery. We work EXCLUSIVELY for the Home or Business Owner, NOT the insurance company, to negotiate the very best settlement with their insurance company for our clients. We handle ALL types of Property Damage Insurance Claims and specialize in DENIED Insurance Claims & Lowballed Insurance Claims representation. We also provide Insurance Appraisal & Umpires Services and are a Maryland Licensed Home Improvement / Insurance Restoration Contractor that performs all types of repair, restoration, mitigation and rebuild services. Specializing in Insurance Claim Restoration. We handle Insurance Claims / Repairs / Rebuilds for all types of property damage. Including Fire, Water and Flood, Mold, Freeze, Wind / Storm and Hurricane, Burst Pipe and Vandalism damage, etc... Call Now for a FREE Insurance Claim Consultation. No Recovery, No Fee

"Simply put, hiring Insurance Claims Specialist, LLC was one of the most important decisions we made in getting our roof damage resolved. We are responsible homeowners with a strong track record of maintaining our house and property, as well as making sure we have proper insurance coverage. But when weather damaged our roof and our insurance provider denied our claim, we found ourselves in uncharted territory. The process with the insurance provider was daunting, confusing, lengthy, stressful, and not transparent. We were kept at arms length and passed through multiple reviewers. They sent a third-party engineer who showed up unannounced, spent very little time inspecting the damage, and then submitted a report that had numerous factual errors. That report then became a baseline for the insurance company! We were buried in red tape and going in circles. Wayne was able to quickly step in and, using his extensive expertise and knowledge of the regulations and insurance process, got right to the point. As a respected, experienced adjuster, his analysis and steadfast conclusions carried weight. In what could have been a disputed claim that may have taken years to resolve, he cut through the red tape and was able to resolve the matter in our favor within months. In a world where home owners are kept at arms length and treated with skepticism, Wayne was treated with respect as a knowledgeable expert whose views were grounded in experience. When he spoke, people listened. Wayne was very candid and responsive to us. He kept us out of the process details and acted as our representative, while keeping us appropriately informed. He made the process much less stressful! He got the right people to listen and move forward with the right decision. Again, one of the best decisions we’ve made. We highly recommend Insurance Claims Specialist, LLC without reservation."

Sid H on August 2023

Insurance Claims Specialist, LLC. is a Maryland Licensed Public Adjusting Firm that represents Home & Business Owners to MAXIMIZE their property damage insurance claim recovery. We work EXCLUSIVELY for the Home or Business Owner, NOT the insurance company, to negotiate the very best settlement with their insurance company for our clients. We handle ALL types of Property Damage Insurance Claims and specialize in DENIED Insurance Claims & Lowballed Insurance Claims representation. We also provide Insurance Appraisal & Umpires Services and are a Maryland Licensed Home Improvement / Insurance Restoration Contractor that performs all types of repair, restoration, mitigation and rebuild services. Specializing in Insurance Claim Restoration. We handle Insurance Claims / Repairs / Rebuilds for all types of property damage. Including Fire, Water and Flood, Mold, Freeze, Wind / Storm and Hurricane, Burst Pipe and Vandalism damage, etc... Call Now for a FREE Insurance Claim Consultation. No Recovery, No Fee

"Simply put, hiring Insurance Claims Specialist, LLC was one of the most important decisions we made in getting our roof damage resolved. We are responsible homeowners with a strong track record of maintaining our house and property, as well as making sure we have proper insurance coverage. But when weather damaged our roof and our insurance provider denied our claim, we found ourselves in uncharted territory. The process with the insurance provider was daunting, confusing, lengthy, stressful, and not transparent. We were kept at arms length and passed through multiple reviewers. They sent a third-party engineer who showed up unannounced, spent very little time inspecting the damage, and then submitted a report that had numerous factual errors. That report then became a baseline for the insurance company! We were buried in red tape and going in circles. Wayne was able to quickly step in and, using his extensive expertise and knowledge of the regulations and insurance process, got right to the point. As a respected, experienced adjuster, his analysis and steadfast conclusions carried weight. In what could have been a disputed claim that may have taken years to resolve, he cut through the red tape and was able to resolve the matter in our favor within months. In a world where home owners are kept at arms length and treated with skepticism, Wayne was treated with respect as a knowledgeable expert whose views were grounded in experience. When he spoke, people listened. Wayne was very candid and responsive to us. He kept us out of the process details and acted as our representative, while keeping us appropriately informed. He made the process much less stressful! He got the right people to listen and move forward with the right decision. Again, one of the best decisions we’ve made. We highly recommend Insurance Claims Specialist, LLC without reservation."

Sid H on August 2023


Allmaster Builders Inc
7609 Energy Pky
4.24(
34
)
Allmaster Builders Inc
7609 Energy Pky
4.24(
34
)
Customers say: Terrific value
38 years of experience

Allmaster Builders, Inc. has been serving Maryland since 1987. We have performed all types of home improvements including decks, room enclosures, basement remodeling, basement waterproofing, structural repair, room additions and much more. We are privately owned, licensed, bonded and insured. Our, President John Locantore has been in the construction and home improvement industry for more than 40 years. He has spent more than 16 years training and consulting in the basement waterproofing and structural repair industry. John has also testified as an expert witness in both Maryland and Virginia. His honest approach and competitive pricing has accumulated many satisfied customers throughout the years.

"Excellent service. They do great job absolutely. They just wonderful."

Hildegard F on March 2022

Allmaster Builders, Inc. has been serving Maryland since 1987. We have performed all types of home improvements including decks, room enclosures, basement remodeling, basement waterproofing, structural repair, room additions and much more. We are privately owned, licensed, bonded and insured. Our, President John Locantore has been in the construction and home improvement industry for more than 40 years. He has spent more than 16 years training and consulting in the basement waterproofing and structural repair industry. John has also testified as an expert witness in both Maryland and Virginia. His honest approach and competitive pricing has accumulated many satisfied customers throughout the years.

"Excellent service. They do great job absolutely. They just wonderful."

Hildegard F on March 2022


Ebright Engineering
348 Sunnyside Ln
No reviews
Ebright Engineering
348 Sunnyside Ln
No reviews
Free onsite estimate

Independent Mold Inspection and Testing. Got mold? Got musty smell? Feel sick? You may consider calling an independent mold inspector who is not interested in selling you more than $10,000 worth of remediation. We are offering you a certified professional and independent opinion, inspection, testing and reporting regarding your mold problem. We work 7 days a week at any time convenient for you. Do not delay the inspection if you suffer from an allergy, asthma, sick building syndrome (SDS), acute respiratory infection or your immune system is weakened. Call, text or e-mail us.

Independent Mold Inspection and Testing. Got mold? Got musty smell? Feel sick? You may consider calling an independent mold inspector who is not interested in selling you more than $10,000 worth of remediation. We are offering you a certified professional and independent opinion, inspection, testing and reporting regarding your mold problem. We work 7 days a week at any time convenient for you. Do not delay the inspection if you suffer from an allergy, asthma, sick building syndrome (SDS), acute respiratory infection or your immune system is weakened. Call, text or e-mail us.

...
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FAQs for radon gas testing projects in Chester, MD

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Chester, MD homeowners’ guide to radon gas testings
From average costs to expert advice, get all the answers you need to get your job done.
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