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Best radon detection and reduction specialists near Denver, NC

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

Avatar for Affordable Environmental Services Inc
Affordable Environmental Services Inc
4.9(
12
)
Radon Gas - Abatement

Serving Denver, NC and surrounding areas

Approved

In business since 2006

Free estimates

Emergency services offered

"They were fantastic. I was able to get a model that resembles a box versus the bulky-looking radon fans most homes have. They were also able to install it in a location that hides it very well. I'm very pleased with the installation and their service."
Asbestos Abatement
Asbestos Abatement
Asbestos Abatement
Asbestos Abatement
Asbestos Abatement

+1

11 neighbors recently requested a quote
Recommended by40%of homeowners
Avatar for All American Environmental Services, LLC
All American Environmental Services, LLC
5.0(
199
)
Radon Gas - Abatement

Serving Denver, NC and surrounding areas

Approved

Super Service Award Winner

In business since 2020

Free estimates

Emergency services offered

"Alan was excellent. He explained everything about Radon and the Radon system we needed. He took the time to map out the best place to install our Radon system. We really appreciated his knowledge of Radon and the radon system. Alan will be our permanent Radon person. I highly recommend Alan and his company, you will not be disappointed !!!!!!!"
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System
Radon Mitigation System

+4

Response time7 hrs
80 neighbors recently requested a quote
Recommended by91%of homeowners
Avatar for Outlook Home Inspections, LLC
Outlook Home Inspections, LLC
5.0(
25
)
Radon Gas - Testing

Serving Denver, NC and surrounding areas

Approved

In business since 2016

Free estimates

Customers say: Quality work

"Jonathan was very prompt to accommodate me to a time that was convenient for me. He was very professional and didn't hesitate to answer any questions I may have had. I would definitely recommend him to other friends and home buyers as well."
Checking the lights and soffits
Water pressure
Toilets
Air handler
Crawlspace Action

+9

Response time3 hrs
Recommended by100%of homeowners
Avatar for Benchmark Home Inspections
Benchmark Home Inspections
5.0(
114
)
Radon Gas - Testing

Serving Denver, NC and surrounding areas

In business since 2017

Free estimates

"Mark is very thorough and explains findings well. Took his time and when he picked up the radon tests a few days later, he took another look at the exterior as it was raining the day of the inspection. Great customer service."
HVAC Inspection
Roof Inspection
Chimney Inspection
Drainage Inspection
Electrical Inspection

+15

Response time5 hrs
Response rate86%
Recommended by98%of homeowners
Avatar for Stay Gone Radon LLC
Stay Gone Radon LLC
5.0(
11
)
Radon Gas - AbatementRadon Gas - Testing

Serving Denver, NC and surrounding areas

In business since 2025

Free estimates

Emergency services offered

"I had a great experience with Stay Gone Radon. They handled my radon gas test quickly and professionally, and the technician took time to explain the process and results in detail. Everything was done on schedule, and the report was clear and easy to understand. I’d highly recommend them to anyone needing radon testing. excellent service from start to finish."
Radon system
Crawlspace encapsulation
Crawlspace encapsulation
Outside part of system
Interior portion of system

+2

Response time10 mins
Response rate100%
Showing 1-10 of 28
Radon Detection and Reduction FAQs, answered by experts

Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.

The soil beneath your house is most likely what’s causing an increased level of radon. This is because soil holds radioactivity for a long time and it’s also what most buildings are built on. Another common source of radon is water from a source that hasn’t been through periodic radon tests, such as well water. Over time, the radon from the soil can inhabit other parts of your house like the foundation or plumbing.

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.

Radon is present almost everywhere but, like sunlight, the concentration levels and how often you are exposed to it have a large part to play in just how dangerous it is. There are levels of radon that are acceptable inside a house, but above a certain limit, radon becomes a serious radioactive hazard that is a known cause of lung cancer. In fact, radon exposure is the number two leading cause of lung cancer (after smoking).

Installing a mitigation system reduces radon levels, which can cause lung cancer, providing peace of mind and long-term health benefits. It can also increase your home’s value, as many buyers prefer properties with radon safety measures in place. The investment is relatively low compared to the potential health risks associated with prolonged radon exposure.

The Denver, NC 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.