Top-rated radon detection and reduction specialists.

Get matched with top radon detection and reduction specialists in Topanga, CA

Enter your ZIP and get matched with up to 5 pros

Need a pro for your radon detection and reduction project in Topanga, CA?

Select your specific project to find the pro for you.

Find Radon detection and reduction specialists in Topanga

Avatar for All Clear Environmental Inc

All Clear Environmental Inc

4.91(
141
)
Approved Pro

All Clear Environmental Inc

4.91(
141
)
Approved Pro
Customers say: Quality work
Recommended by 97% of Angi customers
Recommended by 97% of HomeAdvisor customers
71 local quotes requested

All Clear Environmental is Southern California's one-stop solution for asbestos removal, lead abatement and mold remediation. Our team of licensed professionals has over 100 years of combined experience in the thorough, discrete and environmentally responsible removal of hazardous materials. If you think that your property may be at risk for containing asbestos, lead or mold, we can provide you with the most cost-effective solution. And you can be sure that when we're finished, it will be All Clear.

"Abatement and Remediation are not for the weak or weary - whether managing a personal or professional project, proper containment practices and efforts are essential. I will forever recommend and promote All Clear Environmental - a family-run business with hands-on customer relations. Larry Enos and his son, Beckett, put forth great effort to communicate, assess, and manage the process in good faith. All Clear's team of Rigo et al, handled the physical abatement and remediation, in our home. Rigo and his team made us feel 100% safe, confident, and secure throughout each stage - which was no easy feat with children and pets, in a home. And while there are no accolades for being second-round mold recipients, we hit the jackpot in working with All Clear. We have worked with other companies only to be left with poor communication, a tendency to be overcharged, and dishonesty. Beckett was available almost 24/7 to answer questions via text and live calls. When I felt doubt, Beckett made time to discuss alternative avenues and ensure our best interests were at the forefront of every decision. I recommend All Clear Environmental to friends, neighbors, and strangers with 6/5 stars. Your house is your home - and mold is personal. A company that recognizes the need to love your home well, is a gem beyond measure. Thank you, All Clear Environmental - good people attract good people! Gratefully, Jackie"

Jackie D on August 2024

All Clear Environmental is Southern California's one-stop solution for asbestos removal, lead abatement and mold remediation. Our team of licensed professionals has over 100 years of combined experience in the thorough, discrete and environmentally responsible removal of hazardous materials. If you think that your property may be at risk for containing asbestos, lead or mold, we can provide you with the most cost-effective solution. And you can be sure that when we're finished, it will be All Clear.

"Abatement and Remediation are not for the weak or weary - whether managing a personal or professional project, proper containment practices and efforts are essential. I will forever recommend and promote All Clear Environmental - a family-run business with hands-on customer relations. Larry Enos and his son, Beckett, put forth great effort to communicate, assess, and manage the process in good faith. All Clear's team of Rigo et al, handled the physical abatement and remediation, in our home. Rigo and his team made us feel 100% safe, confident, and secure throughout each stage - which was no easy feat with children and pets, in a home. And while there are no accolades for being second-round mold recipients, we hit the jackpot in working with All Clear. We have worked with other companies only to be left with poor communication, a tendency to be overcharged, and dishonesty. Beckett was available almost 24/7 to answer questions via text and live calls. When I felt doubt, Beckett made time to discuss alternative avenues and ensure our best interests were at the forefront of every decision. I recommend All Clear Environmental to friends, neighbors, and strangers with 6/5 stars. Your house is your home - and mold is personal. A company that recognizes the need to love your home well, is a gem beyond measure. Thank you, All Clear Environmental - good people attract good people! Gratefully, Jackie"

Jackie D on August 2024


Avatar for Radon Solutions California, LLC

Radon Solutions California, LLC

4.88(
4
)
Approved Pro

Radon Solutions California, LLC

4.88(
4
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
4 years of experience

Welcome to Radon Solutions California, LLC. We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"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."

Francisco D on December 2018

Welcome to Radon Solutions California, LLC. We take pride in the quality of work and customer satisfaction that we give each and every customer! We are known to pay exquisite attention to detail while making customer satisfaction our top priority. Call us today to learn more about how we can help you!

"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."

Francisco D on December 2018


Avatar for Restoration Hunter

Restoration Hunter

5.00(
2
)
Approved Pro

Restoration Hunter

5.00(
2
)
Approved Pro
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
100 local quotes requested

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"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."

Michele M on May 2025

We are committed to excellence in every aspect of our business. We uphold a standard of integrity bound by fairness, honesty, and personal responsibility. Our distinction is the quality of service we bring to our customers. Accurate knowledge of our trade combined with ability is what makes us true professionals. Above all, we are watchful of our customers' interests, and make their concerns the basis of our business.

"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."

Michele M on May 2025


Avatar for Pure Restoration Inc

Pure Restoration Inc

4.95(
65
)
Approved Pro

Pure Restoration Inc

4.95(
65
)
Approved Pro
Customers say: Quality work
Recommended by 95% of Angi customers
Recommended by 95% of HomeAdvisor customers
297 local quotes requested

Quality Service You Can Count On! If you are experiencing water damage, mold or fire damage problems, or simply are just looking to remodel your kitchen or bathroom, Pure Restoration can help you! Our experts are highly knowledgeable with mold testing, structural restoration & remediation, including reconstruction for water damage or fire damage, water extraction and services. Pure can deal with virtually any project and takes pride in leaving our customers satisfied! We offer FREE inspections and estimates for your residential home or commercial property. With over 20 years of experience in the industry, Pure Restoration delivers advanced and reliable professional restoration services including mold inspections and testing throughout Los Angeles.

"Very pleased with the work they provided. Susan, the Administrative Assistant/Production Assistant helpful with all my concerns and questions. I’ve received many compliments on the completed project."

Roberta A on November 2025

Quality Service You Can Count On! If you are experiencing water damage, mold or fire damage problems, or simply are just looking to remodel your kitchen or bathroom, Pure Restoration can help you! Our experts are highly knowledgeable with mold testing, structural restoration & remediation, including reconstruction for water damage or fire damage, water extraction and services. Pure can deal with virtually any project and takes pride in leaving our customers satisfied! We offer FREE inspections and estimates for your residential home or commercial property. With over 20 years of experience in the industry, Pure Restoration delivers advanced and reliable professional restoration services including mold inspections and testing throughout Los Angeles.

"Very pleased with the work they provided. Susan, the Administrative Assistant/Production Assistant helpful with all my concerns and questions. I’ve received many compliments on the completed project."

Roberta A on November 2025


"This is my first time leaving a review for a company as I've never felt the need to, but using Pacific Environmental I feel I should share with my home owners. My husband and I bought out first home which we love but a room had acoustic ceiling. I reach out to PEAS, which everyone in the office was very helpful and patient on guiding me through this experience. Their scheduling was amazing as I was dealing with Closing Escrow and moving my family in. Once they arrived, they informed me on the scope of work and what they would be doing and what to expect, this being my 8-year-old son room so I was a bit worried on hazardous material that was being removed and used. CONTAINMENT WAS AMAZING! I was so happy and felt so safe on how they kept the area and the protection they took to take care of my family and themselves. My kids thought the crew looked pretty cool too, haha. CLEANING WAS AMAZING! Work was conducted upstairs and they went the extra mile and cleaned everything they touched, I really appreciate that, as it again made me feel secure and safe. PEAS left a memorial memory our kids still talk about. I strongly recommend them and would use them again."

Crystal R on September 2019

Southern California's highest rated abatement Company. Additional DBAs - Pacific Environmental & Abatement Solutions Inc. & P E A Solutions.

"This is my first time leaving a review for a company as I've never felt the need to, but using Pacific Environmental I feel I should share with my home owners. My husband and I bought out first home which we love but a room had acoustic ceiling. I reach out to PEAS, which everyone in the office was very helpful and patient on guiding me through this experience. Their scheduling was amazing as I was dealing with Closing Escrow and moving my family in. Once they arrived, they informed me on the scope of work and what they would be doing and what to expect, this being my 8-year-old son room so I was a bit worried on hazardous material that was being removed and used. CONTAINMENT WAS AMAZING! I was so happy and felt so safe on how they kept the area and the protection they took to take care of my family and themselves. My kids thought the crew looked pretty cool too, haha. CLEANING WAS AMAZING! Work was conducted upstairs and they went the extra mile and cleaned everything they touched, I really appreciate that, as it again made me feel secure and safe. PEAS left a memorial memory our kids still talk about. I strongly recommend them and would use them again."

Crystal R on September 2019


Avatar for CAWRC

CAWRC

5.00(
2
)

CAWRC

5.00(
2
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

California Water Restoration & Construction is a family-owned business. We specialize in water damage mitigation and restoration, and our team of experienced technicians are dedicated to providing you with the highest quality services. We understand the importance of restoring your property quickly and efficiently and always strive to exceed your expectations. We are committed to providing quality services, as well as honest and transparent communication. With us, you can rest assured that your project is in safe hands. We are licensed, bonded, and insured. All services are provided in a timely and professional manner. We provide free estimates and consultations at the the time of the appointment.

"Great work!"

Julia S on June 2023

California Water Restoration & Construction is a family-owned business. We specialize in water damage mitigation and restoration, and our team of experienced technicians are dedicated to providing you with the highest quality services. We understand the importance of restoring your property quickly and efficiently and always strive to exceed your expectations. We are committed to providing quality services, as well as honest and transparent communication. With us, you can rest assured that your project is in safe hands. We are licensed, bonded, and insured. All services are provided in a timely and professional manner. We provide free estimates and consultations at the the time of the appointment.

"Great work!"

Julia S on June 2023


Avatar for Multipoint Development LLC

Multipoint Development LLC

5.00(
6
)

Multipoint Development LLC

5.00(
6
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

At Multipoint Development, you will receive the best customer service and professionalism guaranteed. We offer variety of services for your residential or commercial property. If you are a contractor or a builder and need Title 24 Compliance and HERS Inspection (AKA HERS Rater), we got you covered. If you are a realtor or a homeowner and need a Home Inspector, Energy Audit, or Property Photography or Videography we’ve got you covered as well. We use top of the line equipment and extensive training to provide accurate and quality results. Our staff are constantly trained with the most up to date standards of practice for Home Inspections and Energy Audits. Multipoint Development has a 5 Star Rating on Google, Yelp, & HomeAdvisor. You can reach us at 818-747-4016 via call/text or visit our website for more information at MultipointDevelopmentLLC.com

"AMAZING CUSTOMER SERVICE AND QUALITY WORK. EVERYTHING WAS COMPLETED EFFICIENTLY AND HONESTLY. I COULD NOT RECOMMEND FRED MORE HIGHLY."

Howard L on January 2022

At Multipoint Development, you will receive the best customer service and professionalism guaranteed. We offer variety of services for your residential or commercial property. If you are a contractor or a builder and need Title 24 Compliance and HERS Inspection (AKA HERS Rater), we got you covered. If you are a realtor or a homeowner and need a Home Inspector, Energy Audit, or Property Photography or Videography we’ve got you covered as well. We use top of the line equipment and extensive training to provide accurate and quality results. Our staff are constantly trained with the most up to date standards of practice for Home Inspections and Energy Audits. Multipoint Development has a 5 Star Rating on Google, Yelp, & HomeAdvisor. You can reach us at 818-747-4016 via call/text or visit our website for more information at MultipointDevelopmentLLC.com

"AMAZING CUSTOMER SERVICE AND QUALITY WORK. EVERYTHING WAS COMPLETED EFFICIENTLY AND HONESTLY. I COULD NOT RECOMMEND FRED MORE HIGHLY."

Howard L on January 2022



Drug Test L.A.

No reviews yet

Drug Test L.A.

No reviews yet
24 years of experience

G Medical Offers Drug testing in Inglewood , CPR Classes in Los Angeles , and even DOT Physicals to drivers all over the united states we would love to schgedule your next appointment so that you can see the many things we have coming up please call us at 310-946-2533 to schedule you appointment today

G Medical Offers Drug testing in Inglewood , CPR Classes in Los Angeles , and even DOT Physicals to drivers all over the united states we would love to schgedule your next appointment so that you can see the many things we have coming up please call us at 310-946-2533 to schedule you appointment today


Blue Coast Remodeling

No reviews yet

Blue Coast Remodeling

No reviews yet
23 years of experience

We offer services in all of Orange county and some Areas of Los Angeles and San Diego counties. With over ten years of experience, Blue Coast Remodeling has built it's portfolio in all things home and commercial remodeling, from demolition, landscape and building permits to Interior Design. We pride ourselves in our referral-based business that speaks to the quality and honesty of our work, and for that we love to reward our clients with a free service* for every person they refer Blue Coast Remodeling to.

We offer services in all of Orange county and some Areas of Los Angeles and San Diego counties. With over ten years of experience, Blue Coast Remodeling has built it's portfolio in all things home and commercial remodeling, from demolition, landscape and building permits to Interior Design. We pride ourselves in our referral-based business that speaks to the quality and honesty of our work, and for that we love to reward our clients with a free service* for every person they refer Blue Coast Remodeling to.

...
Showing 1-10 of 69
Radon Detection and Reduction questions, answered by experts

Using an air purifier in your home or basement isn't an effective way to reduce or mitigate radon. Radon is an inert gas, meaning it doesn't react with other chemicals and can't be filtered the way particulates can be. While an air purifier can help improve your indoor air quality in other ways, don't rely on it to reduce radon.

In most states, radon testing companies don’t need to be licensed or certified by the state, but the companies that analyze the test results and develop radon mitigation protocols do. You should choose a radon testing company that suits your needs, but before hiring a mitigation specialist, check our state licensing tool to make sure the company is properly certified.

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 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.

Radon is a colorless, odorless gas that can cause lung cancer; testing ensures safe indoor air quality.

The Topanga, 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.