Top-rated radon detection and reduction specialists.

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Global Restoration Services, Inc.

360 Knickerbocker Ave
5.00(
20
)
Approved Pro

Global Restoration Services, Inc.

360 Knickerbocker Ave
5.00(
20
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
143 local quotes requested

With years of experience serving Ronkonkoma and surroundings area, Global Restoration Services, Inc. is your solution for all your mold removal needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

"I can’t express my gratitude enough for what this company did for my mother. Having an electrical fire at her house was scary enough. They were there from the moment we needed them and guided me through the entire process and made me understand each step. CuzWith precise efficiency they started the process of the cleanup that day and finished the projects In two weeks time. They were very professional and had great communication and customer service. I highly recommend this company above all."

Danielle W on August 2024

With years of experience serving Ronkonkoma and surroundings area, Global Restoration Services, Inc. is your solution for all your mold removal needs. We take great pride in our extreme professionalism, timeliness and superior customer service on every job. We make sure to develop a lasting relationship so that the next time service is needed there will be no question on who to call. Satisfaction guaranteed!

"I can’t express my gratitude enough for what this company did for my mother. Having an electrical fire at her house was scary enough. They were there from the moment we needed them and guided me through the entire process and made me understand each step. CuzWith precise efficiency they started the process of the cleanup that day and finished the projects In two weeks time. They were very professional and had great communication and customer service. I highly recommend this company above all."

Danielle W on August 2024


Avatar for Carolina Mold Solutions LLC

Carolina Mold Solutions LLC

1000 Johnnie Dodds Blvd
4.98(
97
)
Approved Pro

Carolina Mold Solutions LLC

1000 Johnnie Dodds Blvd
4.98(
97
)
Approved Pro
Customers say: True professional
Recommended by 98% of Angi customers
Recommended by 98% of HomeAdvisor customers
81 local quotes requested

Carolina Mold Solutions provides mold prevention, remediation, and testing services for residential and commercial clients in the Carolinas. With 30 years experience working with customers, owner Joel Few is personally committed to making sure that every job is done right. Moisture management is the key to preventing mold growth. Whether humidity mitigation is causing indoor issues, or direct moisture intrusion has caused unseen mold growth, we have the experience and resources to break down the details of your air quality, to clean up your indoor environment, and to correct and account for sources of humidity intrusion.

"Joel was very professional with courtesy and rapid response to my timely urgency of the situation. He did great job and highly recommend him to others!👍👍👍!"

Catherine C on December 2024

Carolina Mold Solutions provides mold prevention, remediation, and testing services for residential and commercial clients in the Carolinas. With 30 years experience working with customers, owner Joel Few is personally committed to making sure that every job is done right. Moisture management is the key to preventing mold growth. Whether humidity mitigation is causing indoor issues, or direct moisture intrusion has caused unseen mold growth, we have the experience and resources to break down the details of your air quality, to clean up your indoor environment, and to correct and account for sources of humidity intrusion.

"Joel was very professional with courtesy and rapid response to my timely urgency of the situation. He did great job and highly recommend him to others!👍👍👍!"

Catherine C on December 2024


Avatar for Biotek Environmental, Inc.

Biotek Environmental, Inc.

534 St Andrews Rd
4.71(
166
)
Approved Pro

Biotek Environmental, Inc.

534 St Andrews Rd
4.71(
166
)
Approved Pro
Customers say: Quality work
Recommended by 90% of Angi customers
Recommended by 90% of HomeAdvisor customers
355 local quotes requested

Need expert water damage restoration, fire damage restoration, and mold remediation? BioTek Environmental Inc. is based in Columbia SC and serves South Carolina, North Carolina, and Georgia. We are rated A+ by BBB, and we are proud of having served more than 2000 satisfied clients since 2007. Get 24/7 emergency help to ensure that your property damage needs are dealt with efficiently and carefully. We have seen it all, let us help you restore your home. For your peace of mind, we offer the best price guarantee and a 30-year bumper-to-bumper warranty! BioTek is a top 5% remediation/restoration contractor nationwide and we will be there for you when you need us.

"Smooth! And efficient. Communication was touchy sometimes but otherwise good."

Aaron D on May 2025

Need expert water damage restoration, fire damage restoration, and mold remediation? BioTek Environmental Inc. is based in Columbia SC and serves South Carolina, North Carolina, and Georgia. We are rated A+ by BBB, and we are proud of having served more than 2000 satisfied clients since 2007. Get 24/7 emergency help to ensure that your property damage needs are dealt with efficiently and carefully. We have seen it all, let us help you restore your home. For your peace of mind, we offer the best price guarantee and a 30-year bumper-to-bumper warranty! BioTek is a top 5% remediation/restoration contractor nationwide and we will be there for you when you need us.

"Smooth! And efficient. Communication was touchy sometimes but otherwise good."

Aaron D on May 2025


Avatar for Coastal Inspection

Coastal Inspection

625 Lannie Lane
5.00(
22
)
Approved Pro

Coastal Inspection

625 Lannie Lane
5.00(
22
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
7 years of experience

I am a retired Virginia Firefighter with an excess of 20 years experience in the Facility management industry. My experience includes Environmental Support Unit for the Federal Aviation Administration, providing support to the HVAC, Plumbing, Electrical and Power Generation needs of an Active Washington DC area air traffic control center. I served as a D.O.D. facility manager for US Army Corp of engineers Underground Command Center facilities; both domestic and abroad. I am currently providing engineering services developing electronic medical devices and optical measurement technology.

"Very prompt, thorough and courteous. A pleasure to work with...will recommend to others"

Shelli B on September 2020

I am a retired Virginia Firefighter with an excess of 20 years experience in the Facility management industry. My experience includes Environmental Support Unit for the Federal Aviation Administration, providing support to the HVAC, Plumbing, Electrical and Power Generation needs of an Active Washington DC area air traffic control center. I served as a D.O.D. facility manager for US Army Corp of engineers Underground Command Center facilities; both domestic and abroad. I am currently providing engineering services developing electronic medical devices and optical measurement technology.

"Very prompt, thorough and courteous. A pleasure to work with...will recommend to others"

Shelli B on September 2020


All American Environmental Services, LLC

4072 Farben Way
5.00(
3
)

All American Environmental Services, LLC

4072 Farben Way
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

As I am sure you are aware most homes in the area have high levels of radon. We are here to give you the options needed to address this problem. We have the knowledge and capability to deal with any radon issue you come across. We can beat any quoted price as well as offer a $100 referral fee for any work that comes our way. Our team is hear to answer any radon questions at no cost to you. Let All American Environmental Services be your go to guy when it comes to radon.

"Wonderful! Alan was on time and the install went perfectly. He was very knowledgeable and educated me totally."

Linda D on April 2025

As I am sure you are aware most homes in the area have high levels of radon. We are here to give you the options needed to address this problem. We have the knowledge and capability to deal with any radon issue you come across. We can beat any quoted price as well as offer a $100 referral fee for any work that comes our way. Our team is hear to answer any radon questions at no cost to you. Let All American Environmental Services be your go to guy when it comes to radon.

"Wonderful! Alan was on time and the install went perfectly. He was very knowledgeable and educated me totally."

Linda D on April 2025



Foothills Environmental & Safety Control, LLC

PO Box 171
No reviews yet

Foothills Environmental & Safety Control, LLC

PO Box 171
No reviews yet
13 years of experience

FE&SC is a family owned and operated company whose purpose is to provide your home or office with a healthy and safe environment. Whether it be mold, moisture, radon, crawlspace, insulation or poor indoor air quality issues the FE&SC crew are specialists in these areas. FE&SC began in Tryon, NC and after years of working in western NC, the upstate and midlands areas of SC, the company expanded operations to include the Lowcountry of SC.

FE&SC is a family owned and operated company whose purpose is to provide your home or office with a healthy and safe environment. Whether it be mold, moisture, radon, crawlspace, insulation or poor indoor air quality issues the FE&SC crew are specialists in these areas. FE&SC began in Tryon, NC and after years of working in western NC, the upstate and midlands areas of SC, the company expanded operations to include the Lowcountry of SC.


ETaC Services

PMB 358
No reviews yet

ETaC Services

PMB 358
No reviews yet
14 years of experience

Environmental Testing and Consulting. ETaC Services brings 20+ years of professional services. ETaC Services is the professional partnership of Ringneck Consulting (started 1997) and Exposing Lead (started 2007) Our team of profressionals is passionate to provide quality services. In fact, we guarantee satisfaction.

Environmental Testing and Consulting. ETaC Services brings 20+ years of professional services. ETaC Services is the professional partnership of Ringneck Consulting (started 1997) and Exposing Lead (started 2007) Our team of profressionals is passionate to provide quality services. In fact, we guarantee satisfaction.


ACE Preferred Inspections, Inc

PO Box 1154
2.33(
6
)

ACE Preferred Inspections, Inc

PO Box 1154
2.33(
6
)
28 years of experience

Additional address 447B Jessen Ln, Charleston, SC 29492. Additional phone number (877) 832 0455

"DO NOT LET THEM IN YOUR HOME WITHOUT PROOF OF LIABILITY INSURANCE! BEWARE! This company and its inspector, C. Scott Burns, do not follow accepted home inspection standards and caused thousands of dollars in damage to my property during a home inspection. Despite providing pictures, documents, and fulfilling every request, the owner, Jeffery Donaldson, refused to pay for the damage. He only communicated through a generic customer support email and repeatedly refused to identify himself. A quick search of court records in Berkeley, Charleston, and Dorchester counties will show that he has been involved in numerous lawsuits. I have been forced to seek legal action as well. STAY AS FAR AWAY FROM THIS COMPANY AS POSSIBLE. If you are buying or selling a home in the Charleston, SC area, ask who the inspector is and ensure you get a copy of their insurance policy before allowing them into your home. They will refuse to repair any damage caused by their incompetent inspectors. I am extremely disappointed in this company and its owner, Jeffery Donaldson. I will never let this shady business near any of my homes or my clients’ homes. I want to warn everyone to avoid the same painful process I and many others have experienced. There are many other reputable, knowledgeable, and well-trained inspection companies in the Charleston area, such as Cardinal, Hometeam Inspections, or literally ANYONE ELSE besides ACE Preferred Inspections."

Derrick B on February 2025

Additional address 447B Jessen Ln, Charleston, SC 29492. Additional phone number (877) 832 0455

"DO NOT LET THEM IN YOUR HOME WITHOUT PROOF OF LIABILITY INSURANCE! BEWARE! This company and its inspector, C. Scott Burns, do not follow accepted home inspection standards and caused thousands of dollars in damage to my property during a home inspection. Despite providing pictures, documents, and fulfilling every request, the owner, Jeffery Donaldson, refused to pay for the damage. He only communicated through a generic customer support email and repeatedly refused to identify himself. A quick search of court records in Berkeley, Charleston, and Dorchester counties will show that he has been involved in numerous lawsuits. I have been forced to seek legal action as well. STAY AS FAR AWAY FROM THIS COMPANY AS POSSIBLE. If you are buying or selling a home in the Charleston, SC area, ask who the inspector is and ensure you get a copy of their insurance policy before allowing them into your home. They will refuse to repair any damage caused by their incompetent inspectors. I am extremely disappointed in this company and its owner, Jeffery Donaldson. I will never let this shady business near any of my homes or my clients’ homes. I want to warn everyone to avoid the same painful process I and many others have experienced. There are many other reputable, knowledgeable, and well-trained inspection companies in the Charleston area, such as Cardinal, Hometeam Inspections, or literally ANYONE ELSE besides ACE Preferred Inspections."

Derrick B on February 2025


Cardinal Home Inspections

3236 Landmark Drive
4.60(
5
)

Cardinal Home Inspections

3236 Landmark Drive
4.60(
5
)
Customers say: Quick response
26 years of experience

Proudly serving the LowCountry for over a decade. We approach every inspection with a team effort. Each inspection has a lead inspector and a inspector apprentice present to put more eyes on your potential purchase. We want to disclose to information about your home information that nobody else does.

Proudly serving the LowCountry for over a decade. We approach every inspection with a team effort. Each inspection has a lead inspector and a inspector apprentice present to put more eyes on your potential purchase. We want to disclose to information about your home information that nobody else does.

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FAQs for radon detection and reduction projects in Charleston, SC

If radon is present in your home, you can expect to pay around $1,000 for a radon mitigation system or between $780 and $1,250 in most cases. The exact price will depend on the severity of the radon leak, home size, and the protocol the radon specialist develops to remove radon from your home and keep it out. Your foundation type will also affect your radon mitigation system cost, as unfinished basements will cost about $4,600 to seal and ventilate, while crawl spaces without a foundation slab may need extra encapsulation, costing $1,500 to $15,000.

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. 

Radon testing costs depend on whether you hire a professional radon inspector or DIY test. You can expect to pay $150 to $800 to hire a local radon inspector, and home-testing kits range in price from $15 to $250 from home improvement stores. However, it’s best to trust a professional inspector with this task to ensure accurate results. Plus, if you have radon in your home, your testing company can develop a mitigation protocol to keep you and your family safe from the dangerous gas, so it’s well worth the money to hire a professional.

Yes, radon testing is absolutely necessary if you suspect the presence of this hazardous gas, and the Environmental Protection Agency (EPA) recommends testing for all homes in the country. Radon is a pervasive natural gas that can leak through your home’s foundation and seep into the living areas. Unfortunately, the gas is highly carcinogenic and is the second leading cause of lung cancer. Radon testing is crucial for keeping you and your family safe from harm, so hire a radon mitigation specialist to test your home if you suspect its presence in your home.

In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.

The Charleston, SC homeowners’ guide to radon detection and reduction services

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