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Find Radon gas testers in Darlington

"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 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
32 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


"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 Baltimore Home Specs, LLC

Baltimore Home Specs, LLC

5.00(
4
)
Approved Pro

Baltimore Home Specs, LLC

5.00(
4
)
Approved Pro
Super Service Award
Customers say: Quick response
48 local quotes requested
Warranties offered

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


Avatar for NextDay Inspect

NextDay Inspect

4.94(
314
)
Approved Pro

NextDay Inspect

4.94(
314
)
Approved Pro
Super Service Award
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
425 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.

"Michael conducted a thorough and efficient inspection of the home, providing clear photographs of areas requiring repair or maintenance."

Solomon A on November 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.

"Michael conducted a thorough and efficient inspection of the home, providing clear photographs of areas requiring repair or maintenance."

Solomon A on November 2025


Avatar for Jardine's Restoration and Painting LLC

Jardine's Restoration and Painting LLC

4.43(
7
)

Jardine's Restoration and Painting LLC

4.43(
7
)
Customers say: Quick response
34 years of experience

Contractor. With our technical know-how, specifications understanding, and the meticulous care and craftsmanship required to preserve and protect the historical structure. Our additional capabilities such as Lead Paint Preparation and excellent safety record will add to the success of your project. Additional area - Duncanon, Mechaniscburg, & Hershey,

Contractor. With our technical know-how, specifications understanding, and the meticulous care and craftsmanship required to preserve and protect the historical structure. Our additional capabilities such as Lead Paint Preparation and excellent safety record will add to the success of your project. Additional area - Duncanon, Mechaniscburg, & Hershey,


Global Plasma Solutions

5.00(
1
)

Global Plasma Solutions

5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.


America's Premier Inspections LLC

No reviews yet

America's Premier Inspections LLC

No reviews yet

Avatar for Maryland Home Improvement Co

Maryland Home Improvement Co

4.85(
60
)

Maryland Home Improvement Co

4.85(
60
)
Customers say: Quick response
Recommended by 96% of Angi customers
Recommended by 96% of HomeAdvisor customers

Maryland Home Improvement Company is a technical services contractor which is in business to provide electrical, HVAC, and plumbing services to residential and light commercial customers. We are fully licensed and insured to perform all types technical services.

"Exceptional craftsmanship, thoughtful design, and deep integrity—JJ Palmer of Maryland Home Improvement Company delivers at the highest level. One morning not long ago, during breakfast, we heard a crash from upstairs. This time it wasn’t the cat getting into mischief—it was a large shelf in our closet giving way after thirty-one years of faithful service. To its credit, the old wire system had lasted decades. But what followed was not just a replacement—it was a complete transformation. We’re now standing in a custom-built white oak closet designed and executed by JJ Palmer, and it’s one of the finest examples of residential craftsmanship we’ve ever encountered. Every detail has been carried out with extraordinary care and quiet precision. The workmanship doesn’t shout—but it absolutely sings. You see it in every cut and corner. Trim lines are crisp and flush, hand-scribed to imperfect walls so precisely that they seem to have grown there rather than been added. Shelf edges are finished so carefully that all end grain is hidden, and the face grain flows seamlessly across components. Even the angled shoe shelves—normally utilitarian—are grain-matched and gracefully proportioned, elevating function to quiet elegance. The layout itself reveals a deep understanding of proportion and geometry: verticals and horizontals are aligned across bays with rhythmic consistency; trim widths are uniform; spacing feels intentional and calming. Every inch of the system—from the sloped shoe racks to the deeper bay for long dresses and luggage—feels purposeful, balanced, and beautifully made. Nothing is extraneous. It’s the kind of design that honors both material and use. JJ selected the materials with a discerning eye: knot-free white oak with straight, harmonious grain, installed in ways that bring out its natural beauty rather than compete with it. Even before stain was applied, the woodwork had presence and refinement. Once finished in a light weathered gray, the result was timeless, tactile, and visually integrated with the rest of the space—including our flooring and lighting.. What truly sets JJ apart, though, is not just his technical ability: it’s his ethos. We’ve worked with him before, on projects ranging from a bathroom remodel to a full basement build-out, and each time, he brings the same consistency of quality, professionalism, and quiet pride in his work. He listens well, offers thoughtful solutions, and always delivers what he promises—without shortcuts, excuses, or ego. In a world where true craftsmanship often feels like a relic, JJ Palmer is the real thing. We recommend Maryland Home Improvement Company without hesitation, and with deep appreciation."

Andew C on June 2025

Maryland Home Improvement Company is a technical services contractor which is in business to provide electrical, HVAC, and plumbing services to residential and light commercial customers. We are fully licensed and insured to perform all types technical services.

"Exceptional craftsmanship, thoughtful design, and deep integrity—JJ Palmer of Maryland Home Improvement Company delivers at the highest level. One morning not long ago, during breakfast, we heard a crash from upstairs. This time it wasn’t the cat getting into mischief—it was a large shelf in our closet giving way after thirty-one years of faithful service. To its credit, the old wire system had lasted decades. But what followed was not just a replacement—it was a complete transformation. We’re now standing in a custom-built white oak closet designed and executed by JJ Palmer, and it’s one of the finest examples of residential craftsmanship we’ve ever encountered. Every detail has been carried out with extraordinary care and quiet precision. The workmanship doesn’t shout—but it absolutely sings. You see it in every cut and corner. Trim lines are crisp and flush, hand-scribed to imperfect walls so precisely that they seem to have grown there rather than been added. Shelf edges are finished so carefully that all end grain is hidden, and the face grain flows seamlessly across components. Even the angled shoe shelves—normally utilitarian—are grain-matched and gracefully proportioned, elevating function to quiet elegance. The layout itself reveals a deep understanding of proportion and geometry: verticals and horizontals are aligned across bays with rhythmic consistency; trim widths are uniform; spacing feels intentional and calming. Every inch of the system—from the sloped shoe racks to the deeper bay for long dresses and luggage—feels purposeful, balanced, and beautifully made. Nothing is extraneous. It’s the kind of design that honors both material and use. JJ selected the materials with a discerning eye: knot-free white oak with straight, harmonious grain, installed in ways that bring out its natural beauty rather than compete with it. Even before stain was applied, the woodwork had presence and refinement. Once finished in a light weathered gray, the result was timeless, tactile, and visually integrated with the rest of the space—including our flooring and lighting.. What truly sets JJ apart, though, is not just his technical ability: it’s his ethos. We’ve worked with him before, on projects ranging from a bathroom remodel to a full basement build-out, and each time, he brings the same consistency of quality, professionalism, and quiet pride in his work. He listens well, offers thoughtful solutions, and always delivers what he promises—without shortcuts, excuses, or ego. In a world where true craftsmanship often feels like a relic, JJ Palmer is the real thing. We recommend Maryland Home Improvement Company without hesitation, and with deep appreciation."

Andew C on June 2025


Avatar for Atlantic Environmental Solutions

Atlantic Environmental Solutions

5.00(
13
)

Atlantic Environmental Solutions

5.00(
13
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Mold Inspections and Remediation, Asbestos Abatement, Water Damage, Structural Drying,Sewage Damage, Fire Damage, HVAC Duct Cleaning, Controlled Demolition

"Very good."

DONNA B on June 2018

Mold Inspections and Remediation, Asbestos Abatement, Water Damage, Structural Drying,Sewage Damage, Fire Damage, HVAC Duct Cleaning, Controlled Demolition

"Very good."

DONNA B on June 2018

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FAQs for radon gas testing projects in Darlington, 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 Darlington, MD homeowners’ guide to radon gas testings

From average costs to expert advice, get all the answers you need to get your job done.