Top-rated radon detection and reduction specialists.

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Radon detection and reduction specialists in Gratis

Avatar for Stay Dry Waterproofing - Columbus
Stay Dry Waterproofing - Columbus
20 S 3RD ST
4.17(
47
)
•
Approved Pro
Stay Dry Waterproofing - Columbus
20 S 3RD ST
4.17(
47
)
•
Approved Pro
Customers say: Super punctual
364 local quotes requested
15 years of experience

Our team at Stay Dry Waterproofing has over 20 years of experience protecting homes in Columbus. Our team of experts has experience transforming any damp, musty, and wet basement into a comfortable dry living space. We use only tested products that are guaranteed to keep your home safe. Whether you have noticed water, mold, or musty odors emitting from your basement or crawl space, we can help. Stay Dry Waterproofing is Central Ohio's leader in Basement repair and drainage needs. Everything from Basement Waterproofing, Mold Remediation, Foundation Crack and Bowed Wall Repairs, Yard Drainage, and Crawlspace Encapsulation. Life time warranties, Free Estimates and zero percent financing options.

"Great workers and very professional"

Bev S on August 2024

Our team at Stay Dry Waterproofing has over 20 years of experience protecting homes in Columbus. Our team of experts has experience transforming any damp, musty, and wet basement into a comfortable dry living space. We use only tested products that are guaranteed to keep your home safe. Whether you have noticed water, mold, or musty odors emitting from your basement or crawl space, we can help. Stay Dry Waterproofing is Central Ohio's leader in Basement repair and drainage needs. Everything from Basement Waterproofing, Mold Remediation, Foundation Crack and Bowed Wall Repairs, Yard Drainage, and Crawlspace Encapsulation. Life time warranties, Free Estimates and zero percent financing options.

"Great workers and very professional"

Bev S on August 2024


Avatar for Action Mold Pros
Action Mold Pros
100
4.78(
139
)
•
Approved Pro
Action Mold Pros
100
4.78(
139
)
•
Approved Pro
Customers say: Super punctual
Recommended by 93% of Angi customers
Recommended by 93% of HomeAdvisor customers
33 local quotes requested

Your local mold remediation and materials/air quality testing with over 15 years of specialized and certified service. Three locations to serve you best in Lexington, Louisville and our main office in Cincinnati. We have received over 120 five star reviews and several "Top Service" awards on Angi, Home Advisor and BBB with A+ rating. We guarantee our work and service to reflect our reputation by providing the best mold remediation and testing possible while being discrete and leaving behind no trace. Contact us today!

"Mark and Scott were incredible!! At our door on a SATURDAY in Miamisburg, Ohio less than 24 hours after I called. Also important to note, Mark was on vacation in Florida on Friday. Very personable and excellent service. Cleanest demo we have ever seen. Thank you so much for making a very frustrating process as smooth as possible."

Andrea S on September 2023

Your local mold remediation and materials/air quality testing with over 15 years of specialized and certified service. Three locations to serve you best in Lexington, Louisville and our main office in Cincinnati. We have received over 120 five star reviews and several "Top Service" awards on Angi, Home Advisor and BBB with A+ rating. We guarantee our work and service to reflect our reputation by providing the best mold remediation and testing possible while being discrete and leaving behind no trace. Contact us today!

"Mark and Scott were incredible!! At our door on a SATURDAY in Miamisburg, Ohio less than 24 hours after I called. Also important to note, Mark was on vacation in Florida on Friday. Very personable and excellent service. Cleanest demo we have ever seen. Thank you so much for making a very frustrating process as smooth as possible."

Andrea S on September 2023


Avatar for Teasdale Fenton Cleaning & Property Restoration
Teasdale Fenton Cleaning & Property Restoration
12145 Centron Pl
4.52(
1,384
)
•
Approved Pro
Teasdale Fenton Cleaning & Property Restoration
12145 Centron Pl
4.52(
1,384
)
•
Approved Pro
Customers say: Super punctual
208 local quotes requested
18 years of experience

Teasdale-Fenton is Cincinnati based, but people throughout Greater Cincinnati, Northern Kentucky and Dayton know our name and—judging by their feed back—really like us. It's amazing how far a little old-fashioned respect, honesty and hard work goes. We want you impressed with your results, satisfied with the price and happy to call us the next time you need cleaning or restoration. Also, keep us in mind if you have a fire, smoke or water damage emergency. Our 24-hour disaster response team is quick to arrive. Years of experience have made us the area's experts on that kind of large loss. Limited Liability Company (LLC). Owned by Mr. James L. Olmstead. In case of fire or water damage emergency, 24-hour disaster response team available. Award winning. We specialize in Carpet, steam, floor, upholstery, drapery, auto, tile & grout cleaning, pet stains, grout sealing, vinyl strip, air duct cleaning, mold removal, basement waterproofing, fire & smoke damage restoration. 10% off for military personnel and senior citizens!

"My carpets look amazing!"

Kristie S on October 2024

Teasdale-Fenton is Cincinnati based, but people throughout Greater Cincinnati, Northern Kentucky and Dayton know our name and—judging by their feed back—really like us. It's amazing how far a little old-fashioned respect, honesty and hard work goes. We want you impressed with your results, satisfied with the price and happy to call us the next time you need cleaning or restoration. Also, keep us in mind if you have a fire, smoke or water damage emergency. Our 24-hour disaster response team is quick to arrive. Years of experience have made us the area's experts on that kind of large loss. Limited Liability Company (LLC). Owned by Mr. James L. Olmstead. In case of fire or water damage emergency, 24-hour disaster response team available. Award winning. We specialize in Carpet, steam, floor, upholstery, drapery, auto, tile & grout cleaning, pet stains, grout sealing, vinyl strip, air duct cleaning, mold removal, basement waterproofing, fire & smoke damage restoration. 10% off for military personnel and senior citizens!

"My carpets look amazing!"

Kristie S on October 2024


Avatar for Simply Radon, LLC
Simply Radon, LLC
15973 Wilson Creek
5.00(
9
)
•
Approved Pro
Simply Radon, LLC
15973 Wilson Creek
5.00(
9
)
•
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
17 years of experience

We are locally owned and certified to provide your home radon testing. Planning to sell your home? Building a new home? Finishing your basement? Test now and know your radon levels. We provide short-term testing and install radon removal systems. Radon is all we do! Give us a call today.

"Simply Radon was great. They were very responsive, professional and friendly. I bought a radon detector to test our basement and got readings well over 4 pCi/L. After Simply Radon installed a mitigation system it dropped to below 1 pCi/L. I strongly recommend them for anyone considering radon mitigation."

Brian c on November 2019

We are locally owned and certified to provide your home radon testing. Planning to sell your home? Building a new home? Finishing your basement? Test now and know your radon levels. We provide short-term testing and install radon removal systems. Radon is all we do! Give us a call today.

"Simply Radon was great. They were very responsive, professional and friendly. I bought a radon detector to test our basement and got readings well over 4 pCi/L. After Simply Radon installed a mitigation system it dropped to below 1 pCi/L. I strongly recommend them for anyone considering radon mitigation."

Brian c on November 2019


A1 Property Pros LLC
PO Box 340974
5.00(
10
)
•
Approved Pro
A1 Property Pros LLC
PO Box 340974
5.00(
10
)
•
Approved Pro
Customers say: Quick response
14 local quotes requested
1 years of experience

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Expained everything - prompt reliable"

Robin S on April 2025

We take great pride in our experience, expertise, quality, and customer service that we provide to meet the consumer's needs. It is our mission to provide excellent workmanship and complete customer satisfaction, from the start to the completion of a project. In order to understand the needs and expectations of our customers, we take great care to work and communicate with every customer in a professional manner. Our reputation is based on service, safety, and quality, regardless of how large or small the job.

"Expained everything - prompt reliable"

Robin S on April 2025



Ernst Home Inspections
PO Box 299
3.00(
2
)
Ernst Home Inspections
PO Box 299
3.00(
2
)
Customers say: Super punctual
13 years of experience

Former general contractor who turned home inspector. We have over 15 yrs experience in the building/construction/remodeling trades that allows us to see and understand things better than most. Our thorough home inspection will consist of the following items. Interiors Foundation Framing Walls and ceilings Stairs Handrails Floors Bathrooms Kitchens Bedrooms Attic Basement Crawlspaces Doors Windows Sump Pumps Exteriors Walks Driveway Garages Site Drainage Roof Gutters Siding Decks Porches Steps Stoops Patios Egresses Window Wells Trim Soffit and Fascia Mechanicals Electric Panel Branch Wiring Outlets Grounding Drain Lines Water Supply Lines Shutoffs Water Heater Heating Unit Mode of Heating Fans Filters AC Unit Condensate Removal

"Bryan conducted our inspection and did an amazing job. This was my first time working with a home inspector and I learned a ton throughout the process. Bryan was honest about issues he would address and carefully explained issues that were against code. I was blown away by his attention to detail and his ability to explain some complex concepts in an understandable way to a first time home buyer. I would recommend Ernst Home Inspections to anyone."

Ryan V on March 2023

Former general contractor who turned home inspector. We have over 15 yrs experience in the building/construction/remodeling trades that allows us to see and understand things better than most. Our thorough home inspection will consist of the following items. Interiors Foundation Framing Walls and ceilings Stairs Handrails Floors Bathrooms Kitchens Bedrooms Attic Basement Crawlspaces Doors Windows Sump Pumps Exteriors Walks Driveway Garages Site Drainage Roof Gutters Siding Decks Porches Steps Stoops Patios Egresses Window Wells Trim Soffit and Fascia Mechanicals Electric Panel Branch Wiring Outlets Grounding Drain Lines Water Supply Lines Shutoffs Water Heater Heating Unit Mode of Heating Fans Filters AC Unit Condensate Removal

"Bryan conducted our inspection and did an amazing job. This was my first time working with a home inspector and I learned a ton throughout the process. Bryan was honest about issues he would address and carefully explained issues that were against code. I was blown away by his attention to detail and his ability to explain some complex concepts in an understandable way to a first time home buyer. I would recommend Ernst Home Inspections to anyone."

Ryan V on March 2023


Hittle Home Inspection,LLC
Unknown
No reviews
Hittle Home Inspection,LLC
Unknown
No reviews
17 years of experience

Hittle Home Inspection,LLC is a full service home inspection company with over 50 years of combined constructon experience. We offer a wide range of services including but not limited to Whole house, Commercial Inspections, Well testing, Radon testing and Initial Meth lab testing. If you have a need we have a service. Please just give us a call. (937-533-8024 Jon) / (937-533-9264 Gary)

Hittle Home Inspection,LLC is a full service home inspection company with over 50 years of combined constructon experience. We offer a wide range of services including but not limited to Whole house, Commercial Inspections, Well testing, Radon testing and Initial Meth lab testing. If you have a need we have a service. Please just give us a call. (937-533-8024 Jon) / (937-533-9264 Gary)


Amerispec Inspection Services
1000 E 2nd St
4.00(
1
)
Amerispec Inspection Services
1000 E 2nd St
4.00(
1
)
Customers say: Quick response
21 years of experience

We provide residential and commercial building inspections prodominately for realestate transactions.

We provide residential and commercial building inspections prodominately for realestate transactions.


Feltz Home Inspection
7254 St. Rt. 73 South
4.80(
5
)
Feltz Home Inspection
7254 St. Rt. 73 South
4.80(
5
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

We are a quality home inspection company certified by InterNACHI. We will make sure the home you are thinking about buying is safe for you and your family. As an InterNACHI member I must adhere to InterNACHI’s Standards of Practice. This means I will attempt to inspect all of the following (when accessible): •Roof, vents, flashings, and trim, •Gutters and downspouts, •Skylight, chimney and other roof penetrations, •Decks, stoops, porches, walkways, and railings, •Eaves, soffit and fascia, •Grading and drainage, •Basement, foundation and crawlspace, •Water penetration and foundation movement, •Heating systems, •Cooling systems, •Main water shut off valves, •Water heating system, •Interior plumbing fixtures and faucets, •Drainage sump pumps with accessible floats, •Electrical service line and meter box, •Main disconnect and service amperage, •Electrical panels, breakers and fuses, •Grounding and bonding, •GFCIs and AFCIs, •Fireplace damper door and hearth, •Insulation and ventilation, •Garage doors, safety sensors, and openers, •And much more…

We are a quality home inspection company certified by InterNACHI. We will make sure the home you are thinking about buying is safe for you and your family. As an InterNACHI member I must adhere to InterNACHI’s Standards of Practice. This means I will attempt to inspect all of the following (when accessible): •Roof, vents, flashings, and trim, •Gutters and downspouts, •Skylight, chimney and other roof penetrations, •Decks, stoops, porches, walkways, and railings, •Eaves, soffit and fascia, •Grading and drainage, •Basement, foundation and crawlspace, •Water penetration and foundation movement, •Heating systems, •Cooling systems, •Main water shut off valves, •Water heating system, •Interior plumbing fixtures and faucets, •Drainage sump pumps with accessible floats, •Electrical service line and meter box, •Main disconnect and service amperage, •Electrical panels, breakers and fuses, •Grounding and bonding, •GFCIs and AFCIs, •Fireplace damper door and hearth, •Insulation and ventilation, •Garage doors, safety sensors, and openers, •And much more…

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Radon detection and reduction services FAQs

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.

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.

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 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.
Mature woman opening the window
•
Dec 2, 2024
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You cannot see, smell, or taste radon, but it may still be a problem in your home. Before hiring a pro, find out how much radon testing costs using this guide.
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Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
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•
Mar 11, 2025
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Radon is a radioactive gas that can enter a home from the ground. Prepare yourself for mitigation by answering these questions before hiring a pro.
Inspector pointing at a crack
•
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What is radon gas? Find out what this radioactive gas is, why it is dangerous, how it gets in your home, and how to mitigate it.
Father cooking with his son
•
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What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
family hugging at home
•
Dec 12, 2024
Dec 12, 2024
Knowing how to test for radon will keep your home free and safe from this odorless gas—you just have to decide whether to do it yourself or hire a pro.
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