You Cannot Smell Radon.
You Can Only Measure It.
EPA-method 48-hour radon testing for Wasilla buyers, sellers, and homeowners — placed, collected, lab-analyzed, and returned as a written result you can act on.
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Inspections led by Larry McBain — ASHI Certified, 38+ years of Alaska construction experience.
Quick Answer
Radon testing in Wasilla uses an EPA-method short-term device placed at the lowest livable level of the home for 48 hours under closed-house conditions, analyzed by an accredited lab, and returned as a written pCi/L result measured against the EPA action level of 4 pCi/L.
Larry McBain of Signature Inspection Service is an ASHI Certified Inspector and a member of the American Society of Home Inspectors (ASHI), with 38+ years of Alaska construction experience, serving Wasilla and the western Mat-Su.
Local Conditions
Why Test in Wasilla.
Radon is a soil gas. Whether it reaches the inside of a house depends on two things — what is in the ground underneath it, and how easily gas can move through that ground and find a way in. Wasilla sits on glacial outwash, the sand and gravel left behind as the Matanuska and Knik systems retreated, and coarse well-drained ground like that moves soil gas readily. That is the mechanism, and it is why testing here is worth doing rather than assuming.
Permeable Outwash Ground
Well-drained sand and gravel is exactly the soil profile that lets gas travel toward a foundation instead of staying put. Good drainage for your crawlspace and easy movement for soil gas are the same property of the same ground.
Crawlspaces Over Bare Soil
A torn, short, or missing vapor barrier is an open pathway between the ground and the house. It is the single most common radon entry point found in Valley homes, and it is the same finding that drives moisture problems.
Eighties-Onward Subdivisions
Much of Wasilla's housing went up through the subdivision boom from the 1980s forward, before radon-resistant construction was a routine consideration in Alaska. Sub-slab piping and sealed sumps are not something to expect in this stock.
A Seven-Month Heating Season
From October through April a Wasilla house is closed and heated, and warm air rising out the top pulls soil gas in at the bottom. Winter is when indoor levels are highest — and when closed-house test conditions happen on their own.
Reading the Result
What the Number Means.
Radon is measured in picocuries per liter of air. Your report gives one number and what it means — no interpretation required on your end.
Below 2 pCi/L
At or near the national indoor average of 1.3 pCi/L. No action indicated.
2–4 pCi/L
Below the EPA action level, but the EPA advises reducing it where practical.
4 pCi/L and above
The EPA action level. Mitigation is recommended.
Radon is the second leading cause of lung cancer in the United States, and it has no color, smell, or taste. A measurement is the only way to know what a house is at.
The Process
Four Steps, Two Visits.
A short-term radon test is not a walk-through reading. The device has to sit in the house and then come back out, which is the whole reason scheduling works the way it does.
1
Placement
The test device goes at the lowest livable level of the house — the basement, the daylight level, or the ground floor if there is no below-grade space.
2
48 Hours Closed
Short-term testing runs under closed-house conditions. Windows and exterior doors stay shut except for normal entry and exit.
3
Lab Analysis
The device goes to an accredited laboratory for a measured pCi/L result rather than an on-the-spot estimate.
4
Written Report
You get the number, what it means against the EPA action level, and mitigation guidance if the result is elevated.
Scheduling
Testing in Wasilla.
Wasilla is regularly served. A radon test needs two visits 48 hours apart, so it is easiest to schedule alongside a Wasilla home inspection — the device goes in at the inspection and comes out two days later.
Test duration
48 hours, closed-house conditions
Two visits 48 hours apart — placement, then collection.
Bundle and save a trip
Home Inspection in Wasilla
See the inspection pageFAQ
Wasilla Radon Testing Questions
Alaska has elevated radon levels in many areas, including the Mat-Su Valley. Levels vary house by house even on the same street, because they depend on the ground under that particular foundation and how that particular house is built and sealed. A neighbor's result does not tell you yours. Testing is the only way to know.
Yes. Wasilla and the wider Mat-Su Valley are regularly served, and radon testing can be scheduled on its own or bundled with a home inspection. Call (907) 223-3725 to confirm availability for your address.
The heating season gives the most representative reading, because the house is already closed up and under the pressure conditions that draw soil gas indoors. Testing runs year-round — a summer test simply requires keeping windows and exterior doors closed for the 48-hour period.
The device stays in place 48 hours under closed-house conditions, then goes to an accredited laboratory for analysis. A 48-hour short-term test is the standard for real estate transactions and is accepted by most lenders and buyers.
At or above 4 pCi/L the EPA recommends mitigation. A sub-slab depressurization system can reduce levels by up to 99% and typically costs $800–$2,500. We can point you toward mitigation contractors — we test and report, we do not sell mitigation, so the result is not a sales tool.
Yes, and for the Valley it is the practical option. Radon requires two visits 48 hours apart. Bundling means the device is placed at the start of your home inspection and collected on the return trip. Call (907) 223-3725 to schedule both together.
Service Area
Radon Testing Nearby
ASHI Certified inspections across Anchorage and the Mat-Su Valley. Same inspector, same standard, wherever you’re buying.
ASHI Certified Inspector
Larry McBain is an ASHI Certified Inspector with more than 38 years of Alaska construction and inspection experience.
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