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Q: How long can you go without a radon fan?

• <div><p>Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.</p></div>

Q: How much does a radon mitigation system cost?

• <div><p>The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.</p></div>

Q: Can I install my own radon mitigation system?

• <div><p>A <a href="https://www.angi.com/articles/can-homeowners-install-radon-mitigation-systems.htm">homeowner can install a radon mitigation system</a> on their own. But it&rsquo;s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.</p></div>

Q: How do I test for radon gas?

• <div><p>Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.</p></div>

Q: How often should you replace a radon fan?

• <div><p>Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Del Rey, CA

*The Angi rating for Radon Detection And Reduction companies in Del Rey, 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 Del Rey, 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 January 21, 2026

Reviewed in January 2026
I needed a variety of yard jobs done around my home. A friend recommended Imagine Tree Service. The owner, David, came to my home the day after I called and gave me a fair estimate for the numerous chores I needed done, including the removal of multiple trees, tree and oleander bush trimming, ...
Imagine Tree Service, Inc.
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Reviewed in November 2025
Tomaselli Tree Service did an exceptional job removing a huge, old palm tree in my backyard. The estimate was quick and accurate and the work was professional and completed in a short amount of time. I recommend them highly!
Tomaselli Tree Service Inc
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Reviewed in September 2025
I had never met Greg Barrajas, and I was afraid but after reading his reviews, I took a chance and chose him over other companies. He did not disappoint. He arrived as states at 7:30 AM with a small crew. They did everything they said they would do and worked consistently for 12 hours....
Barajas Gregorio Valenicia
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Reviewed in March 2025
New View Roofing did a fantastic job, they were punctual and efficient. They provided an accurate estimate with pictures of what needed to be done, and at the completion of the project showed pictures of what had been done. I would recommend New View roofing and thanks Jaime and his crew for...
New View Roofing
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Reviewed in January 2025
I was having a huge black widow (outside) and red ants (inside) problems at my house. After the first visit and spray both inside and out, I was starting to see less and less. It has been four months and my house is insect free. Communication from them is also great! I could not be happier!
Pro Max Pest Solutions
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Reviewed in August 2024
Would definitely contact Michael again. I Got a fast response. I had a time frame and needed removal done at a specific time and he exceeded my expectations! Reliable and trustworthy I highly recommend his services!
Garza Solutions
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Reviewed in January 2024
Tri country disposal was great. On time and great communication. Used them for a home demo project and will definitely use again.
Tri County Disposal
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Reviewed in December 2023
I have hired Angel's Tree Service for a number of tree trimming or removal over the years. They have always been timely in getting the job done. Their prices are fair, and they always leave the area neat and tidy. I appreciate their quality work, and I definitely would recommend this company.
Angels Tree Service Inc.
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Reviewed in August 2023
The owner and workers were efficient and pleasant to work with. They also showed knowledge of different trees and trimmed them appropriately. I will hire them again.
MAG Tree Service Inc
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Reviewed in September 2022
We had a last minute home inspection scheduled and needed some grading and leveling done before the inspection. We contacted Robert and got immediate service! We were very pleased and would definitely hire him again!
Robert and Sons Bobcat Service
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Find Radon detection and reduction specialists in Del Rey

Plata Construction

4.4(

)

Serving Del Rey, CA and surrounding areas

In business since 2003

Free estimates

"My background is 35 years construction and after hiring Jeremy Plata (Plata Construction) to remodel my office, I knew right away I hired the right contractor!! Very affordable but high quality performance!!! I was very impressed at how well Jeremy coordinated his crews to meet my deadline and the job turned out amazing. Terry King"

+12

Recommended by89%of homeowners

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Central Valley Water Restoration

5.0(

)

Serving Del Rey, CA and surrounding areas

In business since 2023

Free estimates

Emergency services offered

"Tiko and Central Valley Water Restoration got to my house within an hour of me calling and they dried the house up and demolished what needed to be demolished and built it back up . They were fast and amazing. They truly care about the customer."

+27

Recommended by80%of homeowners

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A.K.I.I.

New to Angi

Serving Del Rey, CA and surrounding areas

In business since 2003

Free estimates

K.T.W. Land Development provides local area consumers with superior quality land development and construction services. With years of experience in the industry, you can be sure your project will be handled promptly and professionally. Call K.T.W. Land Development today to schedule an appointment for your project estimate!

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Radon Detection and Reduction questions, answered by experts

Your radon fan needs to operate 24/7 to be effective. The only time the fan isn't operating is during its replacement. Radon levels in the home can increase within hours if the fan stops working or something obstructs the stack vent. Fortunately, radon systems require no downtime maintenance between fan changes.

The cost for a radon mitigation system typically ranges from $800 to $1,500, with an average around $1,000. The final price depends on several factors, including the size of your home, the severity of the radon issue, and the type of system required. Your home's foundation type also significantly impacts the cost. For example, sealing and ventilating an unfinished basement might cost around $4,600, while encapsulating a crawl space without a foundation slab can range from $1,500 to $15,000.

A homeowner can install a radon mitigation system on their own. But it’s a challenging DIY that requires a lot of knowledge about radon mitigation as well as familiarity with local regulations. You do not want to risk an improper installation that leaves the system unable to detect radon or gives it a shortened life span. Relying on a professional is the surest way to guarantee a successful installation.

Use a radon test kit or hire professionals to conduct a detailed assessment of radon levels in your home.

Many radon fans carry a five-year manufacturer's warranty. That said, your radon fan should last between five and ten years. Regular inspections will ensure the fan is operating properly. Unusual or exceptional noise coming from the fan or indications on your manometer or system monitor can immediately tell you that something is amiss.

The Del Rey, 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.

See all articles

Mitchell Grant
•
Mar 18, 2026Mar 18, 2026
How Much Does a Radon Mitigation System Cost? [2026 Data]
The cost of a radon mitigation system depends mostly on the type of system being installed. Use this guide to learn about your options.
Angi
•
Mar 18, 2026Mar 18, 2026
How Much Does Radon Testing Cost? [2026 Data]
Find out what impacts radon testing costs, including average prices for DIY kits and professional services, so you can protect your home and budget confidently.
Alison Kasch
•
Apr 6, 2026Apr 6, 2026
How Much Does Radon Remediation Cost? [2026 Data]
Get clear answers on how much radon remediation costs, including average prices, key cost factors, and tips to save money on your home’s radon mitigation.
Dan Simms
•
Apr 5, 2026Apr 5, 2026
5 Questions to Ask About Radon Gas Abatement
Radon is a radioactive gas that can enter a home from the ground. Prepare yourself for mitigation by answering these questions before hiring a pro.
Amy Freeman
•
Apr 5, 2026Apr 5, 2026
Who Installs Radon Mitigation Systems?
Radon is a gas that you can't see or smell and is harmful to your health. If your home has radon, you need to know who installs radon mitigation systems.
Kyle Schurman
•
May 21, 2026May 21, 2026
How Does a Radon Mitigation System Work? And How Do You Keep Yourself Safe?
How does a radon mitigation system work? Learn more about how it pulls air and radon from the soil and expels it before it can enter your house.