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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

4308 Milford Mill Rd
4.68(
19
)
Approved Pro

Guardian Basement Waterproofing

4308 Milford Mill Rd
4.68(
19
)
Approved Pro
Customers say: Quick response
Recommended by 94% of Angi customers
Recommended by 94% of HomeAdvisor customers
45 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 Tri State Flood Inc

Tri State Flood Inc

10 Grant Ave W
2.00(
1
)
Approved Pro

Tri State Flood Inc

10 Grant Ave W
2.00(
1
)
Approved Pro
538 local quotes requested
21 years of experience

At Tri State Flood Inc, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025

At Tri State Flood Inc, we specialize in comprehensive disaster restoration services. Our team is dedicated to safeguarding homes and businesses from the damaging effects of water, fires, mold and storms. Here’s what sets us apart: Water Removal and Storm Damage Restoration: When water wreaks havoc due to storms or other incidents, we’re here to help. Our 24/7 emergency response team swiftly tackles water extraction, drying, and structural repairs. Comprehensive Services: Beyond mold and water remediation, we handle storm damage repairs, basement flood cleanup and fire restoration. Choose Tri State Flood Inc for reliable, efficient, and compassionate restoration services. We’re committed to restoring peace of mind and protecting your property.

"Lesson learned. Always get an estimate. BEFORE the work is done. At least a digital copy. Arrangements for the project were made, with some one named Lynn, for the company to send someone to complete the work. We were quoted over the phone 4500-5000 which included a mold test. A sub contractor with an entirely different company (National Mold Company) was sent. When the contractor arrived, he stated that the job would be much more simpler than first thought. This led us to believe that the job would cost less, no. All said and done, they charged $5500. All said and done, it's almost like no work was done. The stains and the smell are still there. Only one actual board was taken upon the attic room. The ceiling in the bedroom was primed and painted but are still visible and have a funky smell. At this point I'm going to. Do what we should have done; Do the job ourselves. Just now with $5500 less dollars in our pockets. A detailed receipt was not given even though it was requested."

David B on August 2025


Avatar for The Best Air Quality and Restoration

The Best Air Quality and Restoration

1123 State Route 3 North 243
4.79(
217
)
Approved Pro

The Best Air Quality and Restoration

1123 State Route 3 North 243
4.79(
217
)
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
1371 local quotes requested

Thebestairqualityandrestoration provides mold and air quality testing, mold remediation/removal and water damage restoration.Our focus is on you the customer to ensure our work is done right and meets your expectations. As the owner I strive to see that my business takes care of your issues. We work with a variety of customers and budgets to offer solutions customized to your needs.

"They did everything phenomenally"

Troy L on April 2024

Thebestairqualityandrestoration provides mold and air quality testing, mold remediation/removal and water damage restoration.Our focus is on you the customer to ensure our work is done right and meets your expectations. As the owner I strive to see that my business takes care of your issues. We work with a variety of customers and budgets to offer solutions customized to your needs.

"They did everything phenomenally"

Troy L on April 2024


Avatar for NextDay Inspect

NextDay Inspect

46179 Westlake Dr
4.94(
312
)
Approved Pro

NextDay Inspect

46179 Westlake Dr
4.94(
312
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
1927 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.

"We chose NextDay for our home inspection. Not only were they able to come the next day, Davon, our inspector, provided us with a very professional, thorough and informative inspection. NextDay will definately be our go-to choice from now on."

Davon T 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.

"We chose NextDay for our home inspection. Not only were they able to come the next day, Davon, our inspector, provided us with a very professional, thorough and informative inspection. NextDay will definately be our go-to choice from now on."

Davon T on October 2025


Global Plasma Solutions

10 Mall Terrace
5.00(
1
)

Global Plasma Solutions

10 Mall Terrace
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.


Avatar for Jardine's Restoration and Painting LLC

Jardine's Restoration and Painting LLC

4703 Enola Rd
4.43(
7
)

Jardine's Restoration and Painting LLC

4703 Enola Rd
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,


America's Premier Inspections LLC

PO Box 72102
No reviews yet

America's Premier Inspections LLC

PO Box 72102
No reviews yet

Avatar for Maryland Home Improvement Co

Maryland Home Improvement Co

6 Delrey Ave
4.85(
60
)

Maryland Home Improvement Co

6 Delrey Ave
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

6400 Frankford Ave
5.00(
13
)

Atlantic Environmental Solutions

6400 Frankford Ave
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.