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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: What is considered a safe or dangerous level of radon?

• <div><p>No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.</p></div>

Q: What types of radon mitigation systems are available?

• <div><p>Options include sub-slab depressurization, crawlspace ventilation, and sealing cracks. Choose based on home construction and radon levels.</p></div>

Q: Is a radon mitigation system expensive to run?

• <div><p>The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.</p></div>

Q: Is radon a serious problem?

• <div><p>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).</p></div>

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Verified Reviews for Radon Detection And Reduction pros in Lancaster, CA

*The Angi rating for Radon Detection And Reduction companies in Lancaster, 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 Lancaster, 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 July 05, 2025

Reviewed in July 2025
Great experience. AC was installed quickly and securely. He was professional friendly, and inefficient. I highly recommend!
AMS Dynamic Realty Services
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Reviewed in June 2025
I had my Central A/C unit serviced recently, and the experience was excellent from start to finish. Mason arrived on time, was extremely courteous, and CLEARLY explained the work being done. He cleaned the coils, checked the refrigerant levels, and made sure the system was running efficiently....
ORIGIN HEATING & AIR INC
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Reviewed in April 2025
The first project I hired Clear Vision Remodeling was to create a door entry way from my garage to inside the house. After getting several quotes from other local companies, CVR had the most reasonable price and was the only company that throughly explained how they would proceed with the...
Clear Vision Remodeling INC
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Reviewed in January 2025
I had the pleasure of working with Solorio Grading & Excavations for a recent project, and I couldn’t be more impressed with their professionalism and expertise. From the initial consultation to the final cleanup, their team was efficient, friendly, and highly skilled. They tackled the job with...
Solorio Grading & Excavations
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Reviewed in November 2024
Hired this company to detect a leak on our property and to replace a kitchen faucet. The plumber showed up and replaced the faucet, but did not do the leak detection, he stated if he had to come back to do the leak detection his boss said the price would go up. The plumber stated he had to leave...
Super Duper Pros
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Reviewed in October 2024
I have very sensitive skin, and Nate was able to get the chlorine levels in the water to not be so bothersome to my skin, hair and eyes, while keeping it clear and algae-free. Great work. Great customer service.
Balance Pool and Spa - Unlicensed Contractor
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Reviewed in May 2024
It was good, quick and fast. Excellent. I have to give them props on that because the tree and they cut it and just gave it a good haircut and it's beautiful. They tended to cut or make it thinner, all those thick brushes, they took it all away. They had some kind of like clinged up and they...
Tree Rite Arborists
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Reviewed in October 2023
All Shine No Streaks are professional, and extremely efficient. He cleaned my newly vacant 4 bedroom rental home thoroughly and in a timely manner and he provided all supplies. IfI could give him 10 stars I would. Not only will I be referring this company to others I will be using him again and...
All shine no streaks LLC
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Reviewed in May 2022
Extremely efficient and excellent work. Clean and done in a timely fashion. This is the second project I have used David for and would highly recommend.
Dv painting
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Reviewed in May 2022
This company has done several home improvements on my home and maintained a professional attitude and quality work.
Sepulveda Development, LLC
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Find Radon detection and reduction specialists in Lancaster

Radon Solutions California, LLC

4.4(

)

Serving Lancaster, CA and surrounding areas

Approved

In business since 2021

Free estimates

Credit card accepted

"Absolutely amazing experience. My home radon levels were averaging 5.0 pCi/L. Two days after Edward and his team finished the mitigation job the levels went down to 0.3. Incredible result. I can’t be happier."

Response time2 days

Recommended by100%of homeowners

Serving Lancaster, CA and surrounding areas

Approved

In business since 2022

Free estimates

Warranties offered

"He was friendly, very professional, and answered all my questions clearly about how mold happens in a home. His reasonable estimate and scope of work. What are the steps for mold remediation? Furthermore, I had delicate items around the work area. He was very successful in making sure that nothing was damaged. "Think floor demolition in a China shop" where none of the dishes gets broken. I highly recommend restoration Hunter if you have to deal with mold in the home."

3 neighbors recently requested a quote

Recommended by100%of homeowners

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Simplistic Water Restoration

5.0(

)

Serving Lancaster, CA and surrounding areas

Free estimates

Emergency services offered

Credit card accepted

"Excellent job. Took care of us very well. Would definitely use again and definitely recommend."

+39

Recommended by100%of homeowners

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ProCheck Certified Home Inspectors

New to Angi

Serving Lancaster, CA and surrounding areas

In business since 2022

Free estimates

Credit card accepted

With several years experience, we work hard to bring each customer the best possible service and quality available. We look forward to working with you on your next project. We welcome your questions and thank you for your interest. Call today!

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Radon Detection and Reduction questions, answered by experts

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.

No level of radon is technically safe, but since it is present everywhere, complete avoidance is impossible. The average radon level in homes across the United States is 1.3 picocuries per liter (pCi/L). The Environmental Protection Agency (EPA) recommends taking preventative measures if your home's radon levels are between 2 and 4 pCi/L or higher.

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

The fan that pulls the radon out of the air needs to run continuously, so you may see an increase in your electric bill once you install the mitigation system. Additionally, you may see an increase in your heating or cooling bills, as the fan can cause some loss of hot or cool air.

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).

The Lancaster, 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

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•
Mar 18, 2026Mar 18, 2026
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May 2, 2026May 2, 2026
How to Get Rid of Radon in Your Home
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What Is Radon Testing?
What is radon testing? Radon testing measures the presence and concentration of radon gas within indoor environments. Read on to learn more.
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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.