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Best radon detection and reduction specialists near Key Largo, FL

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

Avatar for Quality 1 Restoration
Quality 1 Restoration
4.8(
33
)
Radon Gas - AbatementRadon Gas - Testing

Serving Key Largo, FL and surrounding areas

Approved

In business since 2002

Free estimates

Emergency services offered

"I have never met such a professional person as Yoni one of the representatives of this company. He saved me from scamming companies. I provided me with honest answers over the phone. I provided photos of the mold in my home. I look so reluctant to bring people in fearful that they might try to make me pay expensive amount of money. The Yoni, the service rep. was able to provide me with constructive directions. He was very honest from the start, when most companies would have charged me thousands. I strongly recommend this company as a registered nurse I can understand the dangers of Mold in a home. . But is very important to bring your right workers and representatives that are aware of such dangerous conditions. More importantly, you want to hire someone that's honest and kind. I strongly strongly recommend this company, especially Yoni. My God Continue to bless this organization."
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+19

Response time1 day
Response rate100%
Recommended by100%of homeowners
Avatar for Precise Home Inspection Services
Precise Home Inspection Services
5.0(
15
)
Radon Gas - AbatementRadon Gas - Testing

Serving Key Largo, FL and surrounding areas

In business since 2003

Free estimates

Credit card accepted

"I have used Precise Home Inspection Services to perform home inspections several times. Their staff is extremely friendly and knowledgeable. I was most impressed with their services for a property which had mold. Their inspector was punctual and profesional. He was very thorough and took samples of the mold which they sent out for testing. They were prompt with the results and a plan of action. We remedied the mold problem quickly and are super pleased with their services. I highly recommend them."
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+2

Recommended by100%of homeowners
Avatar for 24 Hour Disaster Restoration LLC
24 Hour Disaster Restoration LLC
4.8(
5
)
Radon Gas - Testing

Serving Key Largo, FL and surrounding areas

In business since 2012

Free estimates

Emergency services offered

"I am so impressed how Emy with the other worker done job wonderfully. Emy is so professional and knowledgeable, a lovely lady. A Owner, Dede is very responsible and Respective personality. I strongly recommended this company."
1010 Garcia
1010 Garcia
1030 HERNANDEZ
0080 Hernan
1056 MSmith

+16

Recommended by100%of homeowners
Avatar for Coastal Empire Roofing & Construction Co
Coastal Empire Roofing & Construction Co
3.1(
16
)
Radon Gas - AbatementRadon Gas - Testing

Serving Key Largo, FL and surrounding areas

In business since 1998

Free estimates

Emergency services offered

"Once they started working on it, the work was great. What they did was good, but they forgot to put caulking on one of our skylights. They came back quickly to fix it. We put half the money down and then we didn’t hear anything for 4 months. I guess they were switching company owners, but since then it has been good."
Pantarah Sunroom Series
Recommended by80%of homeowners
Radon Detection and Reduction FAQs, answered by experts

Radon is a cancer-causing radioactive gas that poses serious health risks, infiltrating homes through foundation cracks and unnoticed spaces.

Installation typically takes 1-2 days, depending on the system and property layout.

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.

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.

You'll need to test your home for radon after installing the mitigation system, then again every two years. If radon remains elevated, contact a licensed radon professional, either the contractor who installed the system or a different one, and have them evaluate the system. They may need to make some changes to improve its effectiveness and performance.

The Key Largo, FL 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.