Radon Mitigation System Installation Services IN Cottage Grove, Minnesota

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Cross-section of a house foundation showing a radon mitigation system with pipes attached to cinder blocks.

Reduce Radon Levels for Long-Term Indoor Safety

Radon is an invisible, odorless, and tasteless radioactive gas that can seep into homes from the soil beneath them. Formed from the natural decay of uranium in rock and soil, radon can infiltrate through cracks in foundations, gaps around service pipes, sump pits, and crawl spaces. Without professional testing, homeowners often remain unaware of elevated radon levels, which can pose significant health risks.


Prolonged radon exposure is recognized as a leading cause of lung cancer in non-smokers, and Minnesota’s geology makes it particularly susceptible to high indoor radon concentrations. This means homes in Cottage Grove and surrounding areas face an elevated risk—regardless of their age, design, or condition.


At 1st Defense Radon Testing And Mitigation, we provide expert radon mitigation system installation designed to lower indoor radon levels to safe standards.

With over a decade of hands-on experience, our team understands the unique environmental conditions in Minnesota and applies proven mitigation strategies that align with state and federal guidelines.


Our installations are customized to your property’s specific layout, foundation type, and existing conditions. Using advanced diagnostic tools, we identify the most effective system design, ensuring consistent performance and long-term protection for your household.


Whether you’ve recently tested and found high radon levels or you’re proactively safeguarding your home, our goal is to deliver a tailored solution that reduces your exposure, protects your family’s health, and adds long-term value to your property.

Benefits of Our Radon Mitigation System Installation

Effective Reduction of Radon Levels

Our systems are specifically engineered to significantly reduce indoor radon concentrations, meeting or exceeding recommended safety guidelines. By creating a controlled ventilation pathway, we draw radon gas from beneath your home and vent it outdoors. This prevents harmful gas from entering living spaces, ensuring a healthier indoor environment for you and your family year-round.

Customized System Design

Each property has unique characteristics, including foundation type, soil composition, and radon entry points. We design each mitigation system to address these specific factors for maximum efficiency and performance. This tailored approach ensures the system operates optimally, blends with your home’s structure, and provides consistent long-term protection without compromising aesthetics or overall property function.

Improved Property Value

A professional radon mitigation system installation can enhance your home’s market appeal. It demonstrates responsible ownership, resolves potential concerns during inspections, and ensures the property meets safety expectations. These benefits help create a smoother sales process, strengthen buyer confidence, and potentially increase your property’s overall market value in competitive real estate conditions.

Long-Term Performance

We install mitigation systems using durable, high-quality materials and proven techniques that ensure lasting effectiveness. With minimal maintenance and proper care, these systems can operate efficiently for decades. Homeowners benefit from consistent radon reduction, reduced repair needs, and long-term peace of mind knowing their mitigation solution is built for enduring protection and reliable performance.

Compliance with Safety Standards

Our installations strictly adhere to recognized radon mitigation standards, ensuring safe, compliant operation. By meeting these guidelines, you reduce the risk of legal or inspection issues, especially during property sales where radon disclosures are required. Compliance also reflects a strong commitment to maintaining a healthy, safe living environment for all current and future occupants.

Peace of Mind for Homeowners

Knowing your radon levels are consistently controlled offers unmatched reassurance. Our systems work continuously to protect your household from a preventable health hazard, allowing you to enjoy your home without worry. Regular monitoring and maintenance help ensure ongoing performance, providing long-lasting confidence in your indoor air quality and safety every single day.

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Effective Radon Mitigation System Installation for Healthier Homes

At 1st Defense Radon Testing And Mitigation, we specialize in professional radon mitigation system installations throughout Cottage Grove, Minnesota. With over 10 years of experience, our team designs and installs systems that effectively reduce indoor radon levels, protecting your family from long-term health risks. Each system is tailored to your property’s structure, ensuring maximum efficiency and lasting performance. Our proven methods safely vent radon gas away from your home, providing immediate improvements to air quality. Beyond installation, we focus on reliability, compliance with safety standards, and long-term durability. Investing in a radon mitigation system not only safeguards health but also increases your property’s value, giving you confidence in a safer, healthier living environment.

Our Radon Mitigation System Installation Services

Sub-Slab Depressurization Systems

This proven method involves installing a vent pipe and fan to draw radon gas from beneath your home’s foundation and expel it outdoors. The continuous process prevents radon from entering living spaces, maintaining safe air quality levels and protecting occupants from prolonged exposure to this hazardous, naturally occurring radioactive gas found in many residential properties.

Crawl Space Encapsulation with Mitigation

For homes with crawl spaces, we install heavy-duty vapor barriers to seal exposed soil, combined with a ventilation system that actively directs radon outdoors. This dual-layer protection not only reduces radon levels but also helps control moisture, preventing mold growth and improving overall indoor air quality in your living spaces for healthier, safer conditions.

Sump Pit and Drain Sealing

Unsealed sump pits and drains are common radon entry points. We professionally seal these areas and integrate them into your mitigation system, preventing radon infiltration without affecting proper drainage. This service ensures all potential radon pathways are addressed, maintaining safe air quality while keeping water management systems functional and efficient for your household needs.

Exterior and Interior System Options

We provide both exterior-mounted and interior-mounted mitigation system configurations. Our team helps you choose the most effective and visually appealing solution for your home. This ensures that your radon mitigation system performs optimally while complementing the property’s appearance, meeting both functional needs and aesthetic preferences for long-term satisfaction and reliable environmental safety.

Post-Installation Radon Testing

Following system installation, we perform detailed radon testing to verify that the mitigation solution is effectively lowering radon to safe levels. This step confirms system performance, provides official documentation for your records, and offers reassurance that your home meets recommended safety guidelines for indoor air quality and long-term occupant health protection without compromise.

System Upgrades and Add-Ons

We offer performance-enhancing upgrades such as low-noise fan models, visual or audible system alarms, and improved exhaust designs. These additions can make operation quieter, more efficient, and easier to monitor, allowing homeowners to enjoy enhanced functionality and confidence in their mitigation system’s ongoing performance while maintaining a comfortable, safe home environment.

FREQUENTLY ASKED QUESTIONS

  • How long does a radon mitigation system installation take?

    Most installations can be completed within a single day. More complex projects may take longer, depending on your home’s foundation type and the chosen system design.

  • Will a mitigation system increase my energy bills?

    Radon fans use minimal electricity, similar to a light bulb running continuously. The small increase in energy cost is outweighed by the health benefits of reducing radon exposure in your home.

  • How do I know which system type I need?

    Our team assesses your home’s structure, radon entry points, and test results to recommend the most effective system design. Every installation is customized to ensure maximum reduction and efficiency.

  • Can a mitigation system be hidden from view?

    Yes. We offer interior installation options and strategic exterior placements to minimize visual impact while maintaining full functionality and compliance with safety standards.

  • How soon should I test my home after installation?

    We recommend testing within 24 hours to 30 days after installation. This ensures your system is functioning correctly and effectively reducing radon levels to safe limits.

  • Will the system require regular maintenance?

    Routine maintenance is minimal. However, we recommend periodic inspections to ensure the fan is operating properly and all seals remain intact.

  • Can a mitigation system be installed in an older home?

    Absolutely. Our systems can be adapted to suit older properties, regardless of construction style. We design installations that address unique structural challenges while maintaining effectiveness.

  • What happens if radon levels rise again after installation?

    If levels increase, we inspect the system for blockages, fan issues, or new entry points. Adjustments or upgrades can usually restore effectiveness quickly.

Contact Us

why choose us
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Meticulous and Organized Process

I take pride in running a well-structured and detail-oriented operation, ensuring every step of your radon testing and mitigation is handled efficiently and without oversight.

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On-Time, Every Time

I value your time and maintain a punctual schedule, arriving when promised and completing projects within the agreed timeframe.

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Owner-Operated Service

As the owner, I personally handle every installation, giving you the quality, accountability, and personal touch only a small, hands-on business can provide.

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Proven Quality and Experience

With years of expertise and a dedication to doing the job right the first time, I deliver results you can trust for the long-term safety of your home or business.

Custom-Designed Systems for Maximum Mitigation Efficiency

At 1st Defense Radon Testing And Mitigation, we specialize in designing and installing mitigation systems that are efficient, discreet, and tailored to your home’s unique characteristics. Our proven methods ensure your system works continuously and reliably, reducing radon concentrations to safe levels and maintaining compliance with all applicable safety standards.


From the initial consultation and diagnostic testing to the final verification of results, we handle the process with precision and care. Our goal is not only to install an effective system but also to educate homeowners about ongoing maintenance and the importance of periodic testing to ensure long-term effectiveness.


Whether you are responding to a recent radon test, preparing your home for sale, or taking proactive steps to protect your family, our team delivers results you can trust. With over a decade of experience serving Minnesota homes, we combine technical expertise with a commitment to customer satisfaction.

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