Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Spencer, OK

Q: What would cause radon in a house?

• <div><p>The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.</p></div>

Q: How does radon enter my home?

• <div><p>Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.</p></div>

Q: How often should you replace a radon fan?

• <div><p>Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.</p></div>

Q: Why is radon detection important for residential properties?

• <div><p>Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.</p></div>

Q: How much does a radon mitigation system cost?

• <div><p>The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Spencer, OK

*The Angi rating for Radon Detection And Reduction companies in Spencer, OK is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

*The HomeAdvisor rating for Radon Detection And Reduction companies in Spencer, OK is a rating based on verified reviews from our community of homeowners who have used these pros to meet their Radon Detection And Reduction needs.

Last update on June 04, 2026

Reviewed in June 2026
4U Roofing did a really fantastic job coordinating with the adjuster and insurance company to file supplements and discuss the home owners needs. They removed ALL the worry and hassle of having to do that. It's their business and they know how to work for the home owner when insurance is...
4 U Roofing & Construction LLC
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Reviewed in February 2026
Ron and his team did a great job! I had an enormous mostly dead tree right off my back porch and they were able to quickly and professionally remove it. I am very pleased with the results. Thanks, Ron!!
B&R Family Mowing, Handyman and Tree Service
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Reviewed in April 2024
We have used Jack and Leona to remove 8 very large trees and trim several. They preformed miracles removing from crazy places with zero damage. Cleaned up and left like they were never here.
J and L Tree Service
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Reviewed in April 2024
Eric called me within an hour or two after I had solicited multiple bids from various contractors and arrived on site less than an hour after our initial communication. Eric and Mindy arrived the next day and completed our shrub removal project quickly and professionally. All debris was hauled...
Custom Tree Service
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Reviewed in January 2024
Ron,his foreman and all his crew did an excellent job removing my tree and the stump. Cleanup was great . I highly recommend this company.
B&R Family Mowing, Handyman and Tree Service
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Reviewed in September 2023
Called these guys out to remove an iron fence and a tree for me! I came home and everything was gone. Stump had been grounded down, and everything was cleaned up. You would have had no idea anything was ever there. Great work!
Sooner State Tree Service, LLC
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Reviewed in March 2023
GDM Construction has completed several jobs for my personal home and my rental homes. On my personal homes, GDM has completed a driveway extension, a retaining wall, and a fence. On the rental homes I own, they have built ramps for wheelchairs (outside and inside the home), extended a fence, and...
GDM CONSTRUCTION LLC
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Reviewed in August 2022
I was really happy with InSight Property Inspection. They were reliable, thorough, and detailed in their home inspection report. I felt like they really knew what they were doing and I could trust their opinion. Flawless!! Very professional and informative.
Insight Property Inspections
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Reviewed in November 2021
We hired Sam to do tree limb clean up from last yearâ s ice storms. He was fair in pricing and got the job done in a timely manner. Very personable and polite and exhibited expertise. We will use him again for future needs. â ï¸ â ï¸ â ï¸ â ï¸ â ï¸
Southwest Organic
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Reviewed in October 2021
LGC was the only company out of five referred that contacted me and it was on a Sunday. They came out Monday to give a quote. It was reasonable and had great equipment and ground the stump right then. They were quick, thorough, courteous, and cleaned up. I will use LGC for all future tree issues.
LGC Tree Service, LLC
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Find Radon detection and reduction specialists in Spencer

A-1 Inspections, LLC

5.0(

)

Serving Spencer, OK and surrounding areas

Approved

In business since 2010

Free estimates

Credit card accepted

"Joseph is the only inspector I use. He is very professional and friendly. Joseph is always on time and is very happy to answer any questions."

+19

Response time8 hrs

Recommended by100%of homeowners

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Marshall Environmental Management - Home Facebook

New to Angi

Serving Spencer, OK and surrounding areas

In business since 1987

Free estimates

Credit card accepted

We are the premier professional industrial hygiene and consulting company in Oklahoma City. We specialize in asbestos, indoor air quality, lead and occupational monitoring. We offer the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. \n\nMold Inspections start at $550. Please call us today to schedule your appointment!

Response time1 day

Response rate100%

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Hercs Construction Services LLC

New to Angi

Serving Spencer, OK and surrounding areas

In business since 2020

Free estimates

Offers commercial services

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 start to 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. Call us today!

Response time20 mins

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Radon Detection and Reduction questions, answered by experts

The natural breakdown of uranium in soil, rock, and water can cause radon to appear in a home. The gas seeps into homes through cracks in foundations, walls, or floors, as well as through gaps around pipes or construction joints. Radon levels are influenced by soil composition, building materials, and ventilation. Poorly sealed or airtight homes can trap radon, allowing it to accumulate.

Radon enters your home when warm air begins to rise and exits through the roof, creating a vacuum that pulls cooler air from under the foundation. Part of that air is radon, which is an invisible, odorless gas that develops naturally when radioactive particles are deep within the ground. Those particles usually come from decaying matter in soil and rocks.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

Radon detection is crucial as prolonged exposure to radon gas, a leading cause of lung cancer, poses significant health risks in residential environments.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

The Spencer, OK 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.

See all articles

Mitchell Grant
•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Alison Kasch
•
Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
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•
Jul 9, 2026Jul 9, 2026
Who Installs Radon Mitigation Systems?
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.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 2026
What Is Radon and How Does It Get In Your Home?
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.
Jacqueline DeMarco
•
Jul 9, 2026Jul 9, 2026
What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.