FOR HOMEOWNERS
Know your home.
From $299
Find out your home’s radon level, whether you’ve just moved in or have lived there for years.
- Help choosing a test location
- Instructions before the visit
- A written results report
Conceptual vapor illustration · Radon is invisible.
01 Testing from $29902 Results in plain English03 All nine Bay Area counties
START WITH YOUR SITUATION
A test for the place
you call home.
Buying a house? Checking the one you live in? Start here. We’ll work out the right test and timing with you.
FOR BUYERS & AGENTS
Before you get the keys.
From $299
Make room for radon testing in your inspection timeline. Share your deadline so we can plan around it.
- Access coordinated with you
- Testing timeline explained
- Results you can share
AFTER MITIGATION
Check the change.
From $299
If you’ve had a radon reduction system installed, a follow-up test checks the level after the work.
- Post-installation testing
- New radon measurement
- Help understanding the result
KNOW THE PRICE BEFORE THE VISIT
Home radon testing.
From $299.
One starting rate for a home test, a real estate test, or a post-mitigation retest. We’ll confirm the total for your property before you book.
Plan your test ↗A standard home test
One testing location · At least 48 hours
- Monitor setup at your property
- Preparation and testing instructions
- Equipment pickup after the test
- A written report of your radon level
- An explanation of your results and next steps
For one testing location in a single residence. Additional locations, separate units, extended monitoring, or unusual access needs are quoted before booking. Any travel charge is confirmed with your total. Mitigation work is not included.
A QUICK INTRODUCTION
What is radon,
anyway?
Radon is a naturally occurring radioactive gas that can move from the ground into a home. You can’t see it, smell it, or taste it.
Long-term exposure can increase the risk of lung cancer. Testing is how you find out your home’s level. If it’s elevated, there are proven ways to reduce it.
Read the EPA’s guide to radon ↗NO GUESSWORK ABOUT THE PROCESS
A small device.
A useful answer.
Short-term testing takes at least 48 hours. We’ll explain the schedule and preparation before the test starts.
Tell us about your home.
Share your ZIP code, the reason for testing, and any inspection deadline. We’ll confirm the scope, price, and available dates.
Make room for the test.
We’ll explain where the device goes and how to keep the home ready. Leave the equipment in place for the full testing period.
Understand your result.
You’ll get a written report with your measured radon level and an explanation of the next steps.
Can I stay home during the test?
Usually, yes. Keep windows closed and use exterior doors for normal entry and exit. We’ll give you the full preparation instructions for your test.
YOUR BAY AREA RADON TESTING TEAM
Across the Bay.
Close to home.
From San Francisco and the Peninsula to the East Bay, South Bay, and North Bay, Bay Area Radon serves homeowners and homebuyers in all nine Bay Area counties.
Share your ZIP code and any inspection deadline. We’ll confirm scheduling, access, and your total before a visit.
Plan a test in your neighborhood ↗WHERE WE WORK
- San Francisco
- San Mateo
- Santa Clara
- Alameda
- Contra Costa
- Marin
- Sonoma
- Napa
- Solano
Serving all nine Bay Area counties.
GOOD QUESTIONS
Let’s clear
a few things up.
Less jargon.
More useful answers.
Does my home need a test?+
The EPA recommends testing homes for radon. A neighbor’s result, the age of your home, or whether you have a basement won’t tell you your own radon level. Testing your home is the way to know.
How long does testing take?+
Short-term tests run for at least 48 hours; some methods require longer. Time is also needed for setup, collection, and reporting. Share any inspection deadline before choosing a test date.
How do I prepare my home?+
For a short test, closed-house conditions usually start at least 12 hours before testing and continue throughout. Keep windows closed; normal entry and exit are fine. Your tester should provide instructions for your equipment, ventilation, weather, and test method.
What if the result is elevated?+
The EPA recommends fixing homes with radon levels at or above 4 pCi/L and considering action between 2 and 4 pCi/L. Follow-up testing may be appropriate depending on the initial test. A qualified radon professional can explain mitigation options.
Does a low result mean there’s no risk?+
No. The EPA says no radon level is known to be risk-free. Radon levels can change over time and with how a home is used. A result describes the test conditions and period measured.
Can I use a home test kit instead?+
Yes. The EPA provides guidance on both do-it-yourself kits and professional testing. For a real estate transaction, check the test method and timing with the parties involved before you start.
Where do you work, and what does it cost?+
Radon testing starts at $299 for one testing location in a single residence. We serve San Francisco, San Mateo, Santa Clara, Alameda, Contra Costa, Marin, Sonoma, Napa, and Solano counties. Additional testing locations or unusual property requirements are quoted before booking. Any travel charge is confirmed with the total.
Can I book through this website?+
Online booking is not yet open. The form lets you prepare and download your request details; it doesn’t send a request or confirm an appointment.
Testing information: U.S. Environmental Protection Agency ↗