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Top-Rated Radon detection and reduction specialists in Holt - Updated Nov 2026

Avatar for Radon Mitigation Masters
Radon Mitigation Masters
4.8(
124
)
Radon Gas - AbatementRadon Gas - Testing

Serving Holt, MO and surrounding areas

Approved

In business since 2018

Free estimates

Emergency services offered

"I found the experience, from the on-site quote, the explanation of services during the on-site quote, the ease of provision of all requested details before acceptance (including licensing information), the accuracy of what I was provided, contacting me to confirm go-ahead, the quality of work, the timeliness of work completion and cleanup (well inside the anticipated time window etr 3 hours, actual about 1.5 hours), the finished system solidity and finish, and the post-work explanation of what to expect, details about the system's operation, and the overnight radon monitor testing to be fantastic. I also very much liked that there was a range of payment methods, and as I opted for credit card, the payment process was simple and came to my email for me to review and pay. I had 20+ pCi/L in my basement (verified by my own testing apparatus) before work, and overnight I was down to 1 pCI/L. I felt the quote was competitive based on information sourced online prior to my consideration of the company. John Woods from Radon Mitigation Masters did an excellent job at each stage, and I would thoroughly recommend him and his company to anyone in the area needing Radon mitigation."
Radon Install
Response time10 hrs
Response rate96%
9 neighbors recently requested a quote
Avatar for Radon Mitigation Masters
Radon Mitigation Masters
4.8(
124
)
Radon Gas - AbatementRadon Gas - Testing

Serving Holt, MO and surrounding areas

Approved

In business since 2018

Free estimates

Credit card accepted

Fast, accurate radon testing and affordable mitigation solutions for Kansas City homeowners and real estate professionals. We install high-quality systems designed to quickly reduce radon levels and keep your home safe. Honest pricing, quick scheduling, and licensed professionals who get it done right the first time. Protect your home and health with Kansas City?s trusted radon mitigation specialists.

Jobs
Recommended by91%of homeowners
Avatar for SWAT Environmental, Inc.
SWAT Environmental, Inc.
4.5(
52
)
Radon Gas - Abatement

Serving Holt, MO and surrounding areas

In business since 1988

Free estimates

Credit card accepted

"I would definitely recommend this company to anyone!!! I hired them and the job was done nicely, Dan O'Brien was the technician who took care of the project and he did an excellent job, he answered all of my questions and explained to me everything related to Radon gas. When he finished setting everything up and the job was completed all the working area looked super clean and the installation looks just like it is part of the house and that has been there forever. This is what I call a Perfect and Complete execution of a Radon gas mitigation project."
Recommended by97%of homeowners
Avatar for + Home Inspections
+ Home Inspections
5.0(
8
)
Radon Gas - AbatementRadon Gas - Testing

Serving Holt, MO and surrounding areas

In business since 2003

Free estimates

Emergency services offered

"Gregory was very friendly, professional, thorough and extremely prompt at returning the inspection report earlier than expected. He explained the process from beginning to end very clearly. He is very knowledgeable and answered all questions with great detailed to make sure all parties understood. The report was easy to understand and he was readily available to respond to emails quickly and answer any questions needed to be addressed. He was easy to work with and I will use him again for the next home inspection. I would highly recommend Gregory to any and all home buyers!"
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+4

Recommended by100%of homeowners
Avatar for Inspection Geeks, Inc.
Inspection Geeks, Inc.
5.0(
2
)
Radon Gas - Testing

Serving Holt, MO and surrounding areas

In business since 2015

Credit card accepted

Hi, we are the Inspection Geeks and we pride ourselves on reliability, great communication, integrity, and quality work. \n \nWe offer thorough interior and exterior home inspections, termite inspections, and radon testing as well as sewer scope inspections. After we walk through the home together, we will personally explain the general condition of the home and systems with you and your agent. We will talk through any major issues that need to be addressed sooner rather than later. We will also mention the items that you will want to keep an eye on for deferred maintenance. All of this will be detailed in our easy-to-read Inspection report, that will be delivered in HTML and/or PDF format.

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Recommended by100%of homeowners
Avatar for Barnett Real Estate Inspections, LLC
Barnett Real Estate Inspections, LLC
5.0(
2
)
Radon Gas - Testing

Serving Holt, MO and surrounding areas

In business since 2007

Free estimates

Credit card accepted

Barnett Real Estate Inspections, LLC offers fast, friendly and courteous service. We use only the best products and are always eager to answer your questions and concerns. We have built our reputation on our commitment to providing quality service, which has earned us an impressive reputation with many valuable customers. We take pride in delivering value through top quality, dependable work with excellent price and reliable, honest service. Call us today!

Response time20 mins
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Radon Detection and Reduction FAQs, answered by experts

Keeping radon from getting into your home is much better than having to get rid of it once it's already indoors. While there may not be a way to fully prevent radon from getting into your home, there are things you can do to reduce the gas's ability to enter. 

Sealing foundation cracks and openings can help keep the gas from seeping inside. Improving air flow, such as by opening windows, can also be helpful. If you're building your home from scratch, talk to your contractor about using radon-resistant construction to keep the gas out.

If high radon levels are detected, steps include sealing entry points, installing a mitigation system, and retesting the air regularly to ensure reduced levels.

Yes, many systems include warranties for performance. Confirm terms with your installer.

Ideally, no one will live in a house with elevated radon levels, as prolonged exposure increases the risk of serious health issues like lung cancer. However, homes with radon can be made safe through mitigation systems, such as active soil depressurization. Testing for radon regularly and addressing high levels helps ensure a safe living environment.

The lifespan of a radon mitigation system depends on the type of system and its maintenance. With proper care, a system can last for many decades. Passive systems tend to last longer as they have fewer components that require replacement. Active systems, which have more moving parts like fans, generally have a shorter lifespan. For instance, water filtration devices and active pressurization systems require more frequent maintenance. While the system as a whole is durable, the radon fan in an active system typically has a lifespan of 5 to 10 years and will need to be replaced. As long as the fan is working, the mitigation system should function correctly.

The Holt, MO 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.