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*The Angi rating for Radon Detection And Reduction companies in El Cajon, CA 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 El Cajon, CA 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 December 08, 2025

Find Radon detection and reduction specialists in El Cajon

Avatar for San Diego Abatement Services
San Diego Abatement Services
4.5(
41
)

Serving El Cajon, CA and surrounding areas

Approved

In business since 1985

Emergency services offered

Warranties offered

"Professional, prompt, courteous, completed in one day. Responsive to emails and all questions. Left no mess."
Exterior Painting
Before - Acoustic Ceiling
After - Scraped & Textured
Asbestos Removal
Lead Removal Services

+2

Response time2 days
Response rate98%
1 neighbors recently requested a quote
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Avatar for Vanguard Renovations
Vanguard Renovations
5.0(
4
)

Serving El Cajon, CA and surrounding areas

In business since 2015

Emergency services offered

Credit card accepted

"They were super fast, efficient and vey thorough. They did a great job. We were very happy with the service. They were also very professional."
Recommended by100%of homeowners
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Avatar for KCS Restorations Inc
KCS Restorations Inc
4.7(
33
)

Serving El Cajon, CA and surrounding areas

In business since 2004

Free estimates

"The work that Dave’s company performed was great with the exception of the living room, that ended up being mid-matched. Dave’s crew let me know that because of this they would paint the whole living room. They asked me to call and set up an appointment and I did. The day came and nobody showed up. I called Denise and she stated her crew called in sick and they were leaving town the next day. She would have Dave call me. He didn’t, so I txt him the following week and he called and said it would be more money, which it shouldn’t as I was previously told they mid-matched it so they would make it right. He was supposed to call later in the week and never did. I find though everyone was nice, the professionalism was lacking. I would not use again because of this."
Recommended by96%of homeowners
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Radon Detection and Reduction questions, answered by experts

The average radon mitigation system uses about 876 kWh of electricity per year, although the exact amount of electricity used will vary depending on the size of the radon fan. Once the system is installed, the annual increase to your energy bill could range from $30 to $300 per year, again depending on the size of the fan.

Your radon mitigation system may be loud because it’s time to replace it. Any sounds are usually from the inline fan that helps create the vacuum and resulting airflow. If you hear a new, loud mechanical or humming noise from your radon fan, it might be time to replace it. Most fans used in radon mitigation systems last up to 10 years, but may need to be replaced sooner.

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.

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.

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

The El Cajon, CA 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.

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