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Radon gas testers in Belvedere Tiburon

Avatar for Bio 911
Bio 911
755 Savannah Circle
5.00(
17
)
Approved Pro
Bio 911
755 Savannah Circle
5.00(
17
)
Approved Pro
Customers say: Quick response
111 local quotes requested
7 years of experience

Bio 911 is your trusted, local source for water, mold, and biohazard cleanup services throughout the San Francisco Bay Area. We are an IICRC-Certified firm that is ready to help you recover from water and storm damage, mold contamination, hoarding and crime scenes, and more. Our state and OSHA-certified staff use only the safest, EPA-compliant products to help clean and sanitize your living environment. We proudly offer 24/7 live calls as well as expedited response times for emergency situations. We also offer additional cleaning and support services designed to give you peace of mind throughout the recovery process. Since 2018, Bio 911 has helped homeowners and businesses remove and recover from harmful substances of all kinds. We are more than ready to help you. Fill out the form on this page or call us today to get a FREE, on-site estimate.

"vital information regarding source of problem was not provided in a timely manner resulting in additional expenses"

Nancy o on February 2025

Bio 911 is your trusted, local source for water, mold, and biohazard cleanup services throughout the San Francisco Bay Area. We are an IICRC-Certified firm that is ready to help you recover from water and storm damage, mold contamination, hoarding and crime scenes, and more. Our state and OSHA-certified staff use only the safest, EPA-compliant products to help clean and sanitize your living environment. We proudly offer 24/7 live calls as well as expedited response times for emergency situations. We also offer additional cleaning and support services designed to give you peace of mind throughout the recovery process. Since 2018, Bio 911 has helped homeowners and businesses remove and recover from harmful substances of all kinds. We are more than ready to help you. Fill out the form on this page or call us today to get a FREE, on-site estimate.

"vital information regarding source of problem was not provided in a timely manner resulting in additional expenses"

Nancy o on February 2025


Avatar for Restoration Pro's
Restoration Pro's
5.00(
2
)
Approved Pro
Restoration Pro's
5.00(
2
)
Approved Pro
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers
3 years of experience

Restoration Pros specializes in residential water damage restoration and mold mitigation from bathroom leaks, mold in garage, bedroom and kitchen. We are owner operated, servicing the entire Bay Area. Our goal is dry your property quickly killing and removing any mold damage and get your property back to pre-loss condition so you can get back to doing what you do, uninterrupted. Our team of professionals always move promptly. When it comes to water leaks, more time equals more damage. For these reasons we always move swiftly to stop the damage from spreading.

"Tech did a great job Very thorough & hard working employee"

Elberta M on May 2025

Restoration Pros specializes in residential water damage restoration and mold mitigation from bathroom leaks, mold in garage, bedroom and kitchen. We are owner operated, servicing the entire Bay Area. Our goal is dry your property quickly killing and removing any mold damage and get your property back to pre-loss condition so you can get back to doing what you do, uninterrupted. Our team of professionals always move promptly. When it comes to water leaks, more time equals more damage. For these reasons we always move swiftly to stop the damage from spreading.

"Tech did a great job Very thorough & hard working employee"

Elberta M on May 2025


SERVPRO of San Leandro
2065 Williams St
No reviews
SERVPRO of San Leandro
2065 Williams St
No reviews
58 years of experience

SERVPRO of San Leandro is a trusted leader in the restoration industry, and our highly trained technicians provide 24-hour emergency service. We’re dedicated to responding faster to any size disaster with the training, equipment, and experience to respond to your restoration or cleaning needs.

SERVPRO of San Leandro is a trusted leader in the restoration industry, and our highly trained technicians provide 24-hour emergency service. We’re dedicated to responding faster to any size disaster with the training, equipment, and experience to respond to your restoration or cleaning needs.


Welsh Demolition Inc.
1086 Beau Ave
No reviews
Welsh Demolition Inc.
1086 Beau Ave
No reviews
13 years of experience

Welsh Demolition Inc. is a full service demolition and asbestos removal contractor. We are a family owned business and have been in business since 2012.

Welsh Demolition Inc. is a full service demolition and asbestos removal contractor. We are a family owned business and have been in business since 2012.


Evergreen Air Duct Cleaning San Bruno
111 San Bruno Ave W
No reviews
Evergreen Air Duct Cleaning San Bruno
111 San Bruno Ave W
No reviews
25 years of experience

Professional Air Duct & Dryer vent Cleaning & Repair Company in San Bruno.

Professional Air Duct & Dryer vent Cleaning & Repair Company in San Bruno.


Global Plasma Solutions
10 Mall Terrace
5.00(
1
)
Global Plasma Solutions
10 Mall Terrace
5.00(
1
)
Customers say: Quality work
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.

Global Plasma Solutions is a manufacturing company that sells air purification systems primarily into the commercial and residential markets. Home owners can benenfit from our systems as they are easily adapted to any HVAC system. Go to www.gpshvac.com to find a certified contractor near you to have one installed within your home.


Evergreen Carpet Cleaning Dublin
11792 Dublin Blvd
No reviews
Evergreen Carpet Cleaning Dublin
11792 Dublin Blvd
No reviews
25 years of experience

Professional Air Duct & Dryer vent Cleaning & Repair Company in Dublin.

Professional Air Duct & Dryer vent Cleaning & Repair Company in Dublin.


Evergreen Carpet Cleaning San Ramon
1081 Market Pl
No reviews
Evergreen Carpet Cleaning San Ramon
1081 Market Pl
No reviews
25 years of experience

Professional Air Duct & Dryer vent Cleaning & Repair Company in San Ramon.

Professional Air Duct & Dryer vent Cleaning & Repair Company in San Ramon.


Mr. Fix It Roofing and Paving
771 Mission Ave
5.00(
3
)
Mr. Fix It Roofing and Paving
771 Mission Ave
5.00(
3
)
Customers say: Quick response
Recommended by 100% of Angi customers
Recommended by 100% of HomeAdvisor customers

roofing paving of all types remodeling an renovation over 27 years experience good work at a good price

roofing paving of all types remodeling an renovation over 27 years experience good work at a good price


Evergreen Air Duct Cleaning Walnut Creek
1470 Central Rd
No reviews
Evergreen Air Duct Cleaning Walnut Creek
1470 Central Rd
No reviews
25 years of experience

Professional Air Duct & Dryer vent Cleaning & Repair Company in Walnut Creek.

Professional Air Duct & Dryer vent Cleaning & Repair Company in Walnut Creek.

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FAQs for radon gas testing projects in Belvedere Tiburon, CA

Radon is the second leading cause of lung cancer in the U.S. The gas seeps through cracks in foundations and collects in basements and other low areas. Once you breathe it in, radioactive particles lodge in lung tissue and do long-term damage. Because you can’t see or smell radon, the EPA recommends testing your home every two years—and after major renovations—to keep your family safe.

Yes—every home should be tested. The EPA advises doing it at least every two years and any time you remodel, buy, or sell. On average, one in 15 houses nationwide sits above the recommended limit, and the only way to know where yours stands is a formal test. The equipment simply measures gas levels and won’t change your indoor environment, so the process is completely harmless.

Certified radon professionals—often home inspectors or dedicated radon mitigation contractors—handle testing. These radon testing professionals follow EPA protocols and use calibrated instruments to check levels throughout your house. Hiring a certified radon specialist means results you can trust for real estate deals, insurance requirements, and, most importantly, your family’s health.

Inspectors specialize in measuring radon gas levels, while licensed mitigation contractors design and install the systems that remove it. If your test comes back high, your inspector can point you to a qualified mitigation pro who will size and install the right fan, piping, or other equipment to bring levels down.

No—standard home air purifiers don’t touch radon. They’re built to trap dust and pollen, not radioactive gas. If testing shows high levels, you’ll need a dedicated mitigation system that vents the gas from beneath your home to the outdoors. Relying on a room purifier alone won’t keep your indoor air safe.

Opening a few windows in your home might dilute radon for a short time, but the gas seeps back in as soon as they’re closed. For a lasting fix, you’ll need a professional mitigation system—often a sub-slab depressurization fan—that pulls radon from beneath the foundation and safely vents it outside.

The Belvedere Tiburon, CA homeowners’ guide to radon gas testings
From average costs to expert advice, get all the answers you need to get your job done.
sump pump radon gas removal system in basement of home
Jun 29, 2025
Jun 29, 2025
Radon mitigation systems help protect your home from harmful gas buildup by reducing indoor radon levels. Learn about costs, types, and hiring a professional.
radon gas testing equipment
Jun 25, 2025
Jun 25, 2025
Budget for radon inspection costs based on factors such as home size, geographic location, testing kit costs, labor, mitigation, and more.
Professional in protective suit removing mold from home
Jun 24, 2025
Jun 24, 2025
Budget for mold remediation costs based on factors such as severity, location in the home, type of mold, damage type, and more.
Two professionals removing asbestos from a roof
Apr 26, 2025
Apr 26, 2025
Asbestos testing costs depend on the size of your home, its condition, and your location. This test ensures your home is safe from this hazardous material.
professional in protective suit removing asbestos from attic of home
Apr 25, 2025
Apr 25, 2025
Concerned about asbestos in your home? Learn how to identify, manage, and safely remove this hazardous material with expert guidance on abatement methods, regulations, and best practices.
professional testing for toxic lead in home
Apr 26, 2025
Apr 26, 2025
Budget for lead paint inspection costs based on factors such as home size, location, home condition, repairs and removal, additional tests, and more.
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