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

Avatar for SIS Mold & Home Inspections
SIS Mold & Home Inspections
5.0(
2
)
Radon Gas - Testing

Serving Oxford, PA and surrounding areas

Approved

In business since 2015

Free estimates

Credit card accepted

"I have worked with SIS on numerous occasions as I completely trust them with my testing needs (mold & radon). They are responsive and knowledgeable, having extensive training and experience. Bob and Mary Ann are professional and courteous while providing a competitive price for their services. I highly recommend SIS for mold and radon testing!"
Toxic Mold
Mold under rug at bathroom
Subfloor and joist
Basement Closet
Bedroom Closet

+3

Response time4 hrs
Recommended by100%of homeowners
Avatar for Keystone Radon Mitigators
Keystone Radon Mitigators
4.7(
43
)
Radon Gas - AbatementRadon Gas - Testing

Serving Oxford, PA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"adon After I contacted him, he responded promptly.  While evaluating the area that needed radon mitigation, he called to discuss an area that had not been evaluated by inspectors (not affiliated with him).  After accepting his price, we agreed on the day for the installation.  During the installation, he was respectful and communicative.  After completing the installation, he provided written warranties for me and the buyer.  I highly recommend Keystone Radon Mitigators.
"
Recommended by94%of homeowners
Avatar for Flood Crew LLC
Flood Crew LLC
4.6(
40
)
Radon Gas - AbatementRadon Gas - Testing

Serving Oxford, PA and surrounding areas

In business since 2008

Free estimates

Emergency services offered

"Bill was very responsive and did a very thorough assessment of the water damage. He provided a detailed estimate for the work at a fair price. My homebuilder agreed to repair the damage and I didn’t need to hire Flood Crew LLC. I would hire Flood Crew LLC in the future if needed."
After carpets were cleaned.
Before and after of Medallion
After color sealed
Apartment carpet cleaning
Drying bathroom wood subfloor from kitchen using indirect control heat, controlled by thermostat we set in place

+57

Recommended by88%of homeowners
Quality Home Services of Delaware Valley, Inc.
0.0(
1
)
Radon Gas - Testing

Serving Oxford, PA and surrounding areas

In business since 2010

Free estimates

Warranties offered

Welcome to Quality Home Services of Delaware Valley, Inc! We are the premier professional radon testing company offering the highest quality and most attentive customer service. We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Quality Home Services is certified with the Pennsylvania Department of Environmental Protection Agency (Cert#1609 and Firm#1610), and also with the National Environmental Health Association (NEHA Cert#100931 RT \nQuality Home Services has provided professional and caring service for over 45 years. We would appreciate the opportunity to provide your family with the most accurate radon testing service in the industry. Please call us today to schedule your appointment.Call us at 610-583-4738

 Radalink Continuous Radon Monitor
Recommended by100%of homeowners
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Radon Detection and Reduction FAQs, answered by experts

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.

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 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.

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

No, air purifiers are not an effective way to reduce or remove radon. Radon is a radioactive, inert gas that cannot be filtered by standard air purifiers, which are designed to capture particulates like dust and mold. While an air purifier can improve indoor air quality by removing other pollutants, it should not be relied upon for radon. The only effective solution for high radon levels is a dedicated radon mitigation system.

The Oxford, PA homeowners’ guide to radon detection and reduction services

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