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When was your home last tested?

Radon exposure happens over years. Testing gives you a baseline so you can make a clear decision about your home.

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Why testing matters

A test shows exactly where your home stands, so every decision you make is an informed one.

What affects levels

Soil, weather, construction and airflow all change radon levels. Levels are often higher in colder months when homes are closed up, and neighboring homes can read very differently.

When to test

  • If you never have
  • Every two years
  • After renovations or a new heating system
  • When buying or selling
  • After a mitigation system is installed

How a test works

  1. 01

    Book

    Send an inquiry or call. Wingreen confirms a date and sends closed-house instructions.

  2. 02

    Place

    A calibrated continuous monitor goes in the lowest lived-in level of the home.

  3. 03

    Measure

    The monitor runs for at least 48 hours under closed-house conditions.

  4. 04

    Report

    Your report is posted to your portal, usually 3–5 business days after pickup.

Test types

Short-term

A 48-hour minimum test. The fastest way to know your level.

Long-term

Ninety days or more, for a better picture of your year-round average.

Real estate

Scheduled around your closing timeline, with a report for both parties.

Post-mitigation

Confirms your new system is doing its job.

Testing questions

How long does a test take?
A short-term test runs at least 48 hours under closed-house conditions. Your report is usually ready 3–5 business days after the monitor is picked up.
What does closed-house mean?
ANSI/AARST radon testing standards call for closed-house conditions. For a short-term test they begin 12 hours before the test starts and stay in place until the monitor is picked up:
  • Windows closed on every level of the home, including rooms not being tested.
  • Outside doors closed, except for normal coming and going.
  • Heating or cooling running at normal settings, between 65 and 80 °F.
  • Systems that bring in outdoor air set to their lowest seasonal setting, and whole-house fans off.
  • Fireplaces unused, unless one is the main source of heat.
  • Clothes dryers, range hoods and bathroom fans used sparingly.
Can I move the monitor during a test?
Please leave it exactly where it was placed and keep closed-house conditions until Wingreen picks it up. Moving the monitor will likely invalidate the test, and it may need to be run again.
Where is the monitor placed?
In the lowest level of the home that is regularly used, away from kitchens, bathrooms, laundry areas and drafts, where it can stay undisturbed for the whole test.
Do I need to be home for the visit?
Not always. Share access details when you book, and Wingreen will arrange what works.
How often should I test?
Every two years, after renovations or a new heating system, when buying or selling, and after a mitigation system is installed.
Get started

Schedule today

Breathe easier at home. Share a few details about your house and Wingreen will set up a time that works for you.

(802) 300-0511 Contact us