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Spokane Radon Mitigation
Call Mon–Fri, 8am–8pm
(509) 278-2215
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For buyers, sellers, agents & inspectors

Radon testing for Spokane home sales

A tamper-resistant 48-hour continuous monitor, a full report the day it comes out, and a written mitigation quote within 24 hours if the number is high.

48 h
continuous monitor results
24 h
written mitigation quote
Online
orders any time, weekends too
$225
real estate test, from

Buying a home in Spokane

Spokane County is EPA Zone 1, and 47% of the tests reported to the state from 1990 to 2020 reached 4.0 pCi/L or more. Test during your inspection period so you can negotiate with a real number.

Schedule the test the day your offer is accepted
Results arrive before most inspection response deadlines
A high result comes with a fixed quote you can hand to the seller
Ask whether the home has a passive pipe: activation is often the cheapest fix

A test that fits your inspection window

Day 0
Order
Online or by phone. Share lockbox or ShowingTime details.
Day 0–1
Placement
We place the monitor and a closed-house notice for occupants.
+48 h
Pickup
Monitor collected. Tamper and movement logs checked.
Same day
Report
PDF report emailed to everyone you list.
+24 h
Quote if high
A fixed written price you can use in negotiation.

Radon and Washington's Form 17

Sellers of residential property complete the Form 17 disclosure statement under RCW 64.06.020. Its Environmental section cannot be waived if any answer is "yes." Radon results a seller knows about should be disclosed.

A new statutory version of Form 17 takes effect January 1, 2027. Check the version your transaction uses.

This is general information, not legal advice.

Who pays for mitigation?

It's negotiable. Common outcomes are a seller-paid system before closing, a price credit, or a buyer-paid install after closing. A fixed written quote makes any of these simple.

Systems we install carry a transferable guarantee and warranty, and the post-mitigation test report goes into the file for the buyer.

What's in the report

Average radon level and hour-by-hour graph
Tamper, movement, temperature and humidity logs
Test protocol, device serial and calibration date
Technician name and signature
Plain-language next steps for buyer and seller

Order a real estate test

We confirm every order by phone or email within one business hour.

Lunch-and-learn for your office

A 30-minute session on Spokane radon data, test protocols and Form 17 timing. We bring lunch.

Request a session