---
title: "1st Defense Radon, Cottage Grove, MN | MN Home Sale Pros"
description: "1st Defense Radon: Radon measurement, Radon mitigation in Cottage Grove, MN. Licence details, contact and quotes."
canonical: https://mnhomesalepros.com/firms/1st-defense-radon-m001/
---

# 1st Defense Radon

* Radon measurement, Radon mitigation
* Cottage Grove, MN (Washington County)
* Phone: (651) 503-3131
* Website: https://firstdefenseradon.com
* Address: 9120 Hillside Tr S, Cottage Grove, MN 55016
* MDH radon: Single Family Measurement, Single Family Mitigation
* Service area (per MDH): 50 miles

Get a quote: https://mnhomesalepros.com/get-quotes/?firm=M001

Source: https://radon.web.health.state.mn.us/serviceProviders.jsf, retrieved 2026-10-12. Claim / correct: https://mnhomesalepros.com/list-your-business/?id=M001