Pre-Purchase Real Estate Radon Inspections IN Cottage Grove, Minnesota

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Avoid Surprises with Verified Radon Testing Before You Buy

Purchasing a home or investment property is one of the largest financial commitments most people make, and it’s essential to have a complete understanding of the property’s condition before signing any agreement. While home inspections often address structural integrity, electrical systems, and plumbing, one potential hazard frequently goes overlooked—radon gas.


Radon is a naturally occurring radioactive gas that seeps into buildings through cracks, joints, and other openings in the foundation. It is odorless, tasteless, and invisible, making it impossible to detect without specialized equipment. Long-term exposure to elevated radon levels is a serious health concern, and Minnesota’s geology makes our region particularly prone to higher concentrations.

A pre-purchase real estate radon inspection provides buyers with accurate, reliable measurements of radon levels before closing a deal. For sellers, having a professional radon inspection completed before listing a property can strengthen buyer confidence and reduce the risk of last-minute negotiations or delays.


At 1st Defense Radon Testing And Mitigation, we provide thorough, data-driven radon inspections specifically designed for real estate transactions. Our trained professionals use advanced monitoring equipment to deliver precise results quickly, often within the time constraints of purchase agreements. We also offer expert recommendations on mitigation solutions if radon levels exceed safety guidelines.


Whether you are buying or selling, our pre-purchase radon inspection service helps you make informed decisions, safeguard your health, and protect your investment. By addressing radon concerns upfront, you avoid unexpected issues during closing and ensure a smoother real estate transaction from start to finish.

Benefits of Pre-Purchase Real Estate Radon Inspections

Early Hazard Detection

Detecting elevated radon levels before finalizing a purchase allows buyers to address potential health risks immediately. Early detection also provides the opportunity to negotiate repairs or mitigation costs with the seller, avoiding post-move-in surprises. This proactive approach ensures your family’s safety, protects your investment, and creates peace of mind during an important real estate transaction.

Stronger Negotiating Position

Accurate radon inspection results provide leverage during real estate negotiations. Buyers can request remediation or adjust the purchase price based on findings, while sellers who present recent results demonstrate transparency. This fosters trust between parties, speeds up negotiations, and ensures a smoother, more efficient transaction with fewer delays or disputes during the buying process.

Peace of Mind for Buyers

Verifying that radon levels fall within safe limits provides buyers with confidence in their purchase. For families, it means moving into a home without hidden environmental hazards. For investors, it ensures compliance with safety standards, reducing the risk of future remediation costs and preserving property value over the long term.

Compliance with State Recommendations

Completing a pre-purchase radon inspection aligns with widely recognized best practices and recommended safety guidelines. Adhering to these recommendations demonstrates due diligence, reduces liability, and reassures all parties involved. It also establishes a clear record of environmental safety, supporting both regulatory compliance and buyer confidence throughout the real estate transaction process.

Increased Property Appeal

Sellers benefit from proof of safe radon levels by making their property more attractive to buyers. Clear documentation of a professional inspection builds trust, reduces hesitation, and can shorten the time on market. This transparency also helps prevent failed offers, keeping transactions on track for successful closings without unnecessary delays.

Informed Decision-Making

Radon inspection results—whether safe or requiring mitigation—empower buyers and sellers to make informed choices. Buyers can proceed with confidence or budget for necessary work, while sellers can address issues proactively. This level of transparency prevents disputes, minimizes unexpected expenses, and supports smoother real estate transactions from negotiation to final closing.

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Pre-Purchase Real Estate Radon Inspections for Safer Investments

When buying a home, ensuring a safe environment is just as important as its appearance. At 1st Defense Radon Testing And Mitigation, we provide pre-purchase real estate radon inspections in Cottage Grove, Minnesota, to protect your investment and your health. Our certified inspections accurately measure radon levels before closing, giving buyers and sellers clear documentation to guide negotiations and future mitigation needs. With over 10 years of experience, we use advanced testing methods to deliver fast, reliable results that bring peace of mind during the buying process. Identifying elevated radon early allows for corrective action before moving in, ensuring the property is safe for long-term living. Trust our team to make your real estate decisions safer and smarter.

Our Pre-Purchase Real Estate Radon Inspection Services

Short-Term Radon Testing

We offer fast yet accurate short-term testing suited to real estate deadlines. Using advanced monitors, results are typically available within 48 hours, enabling buyers and sellers to meet contract requirements quickly. This method ensures reliable readings without delaying transactions, helping all parties proceed confidently with their property purchase or sale.

Continuous Radon Monitoring

Our continuous monitoring service captures radon fluctuations over several days, providing a more detailed overview of indoor air quality. This approach accounts for weather changes, ventilation patterns, and other factors affecting radon levels, offering buyers a comprehensive understanding before committing to a purchase or negotiating terms with the seller.

Mitigation Recommendations

If radon levels exceed safe thresholds, we provide targeted mitigation strategies tailored to the property’s structure. Recommendations focus on cost-effective, efficient solutions that comply with safety standards. This guidance helps buyers and sellers address the issue professionally, ensuring the property meets environmental health requirements before transfer of ownership occurs.

Detailed Reporting

We deliver easy-to-read reports complete with summary findings, data charts, and professional recommendations. Designed for real estate use, these reports ensure all parties—buyers, sellers, and agents—understand the results. Clear documentation allows for quick decision-making, keeping transactions on track and minimizing the risk of misunderstandings during the negotiation process.

Realtor Collaboration

We coordinate directly with real estate agents to schedule inspections, communicate results, and maintain transaction timelines. This collaboration streamlines the process, prevents delays, and supports clear communication between all parties. Our goal is to help ensure radon inspections are handled smoothly without creating additional stress during the buying or selling process.

Post-Mitigation Verification

If mitigation work is completed prior to closing, we perform follow-up testing to confirm the system’s effectiveness. This verification ensures radon levels meet safety standards and provides documentation for buyers. The added assurance protects the buyer’s investment and gives both parties confidence that the property is ready for transfer.

FREQUENTLY ASKED QUESTIONS

  • How long does a pre-purchase radon inspection take?

    Most short-term tests are completed in 48 to 96 hours, depending on property size and required testing period. We use professional-grade monitors to ensure accurate results within real estate transaction deadlines.

  • Can testing delay the closing process?

    Not if planned early. We coordinate with agents to schedule inspections promptly, ensuring results are ready in time for negotiations or contingencies, keeping the transaction on track and avoiding unnecessary delays in closing.

  • Do both buyers and sellers benefit from radon inspections?

    Yes. Buyers gain vital safety information before purchase, while sellers can use inspection results to reassure potential buyers, prevent last-minute renegotiations, and strengthen their property’s appeal in a competitive market.

  • What happens if high radon levels are found?

    If elevated radon levels are detected, we provide detailed mitigation recommendations. Buyers and sellers can negotiate remediation costs or have the work completed before closing to ensure the property meets safety guidelines.

  • Are your radon inspections compliant with state recommendations?

    Yes. Our testing methods align with Minnesota Department of Health recommendations for real estate transactions, ensuring accuracy, consistency, and credibility in results used during the buying or selling process.

  • Can you test in winter or during bad weather?

    Absolutely. Radon can be tested year-round. Seasonal conditions often reveal higher readings, so testing during colder months can be particularly important for identifying potential risks in a property.

  • Is radon testing invasive or damaging to the property?

    No. Our process is completely non-invasive. We place small testing devices in key locations and retrieve them after the testing period without causing any damage or disruption to the property.

  • Do you provide mitigation services if needed?

    Yes. In addition to testing, we offer full radon mitigation solutions. If elevated levels are found, we can install and maintain a system to reduce concentrations and verify safe levels before closing.

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.

Make Confident Property Decisions Backed by Accurate Reports

At 1st Defense Radon Testing And Mitigation, we combine technical expertise, advanced testing equipment, and a deep understanding of Minnesota’s environmental conditions to deliver accurate results quickly. Our process is designed to meet the time-sensitive needs of real estate transactions while maintaining the precision and professionalism that radon testing demands.


Investing in a pre-purchase radon inspection ensures you start your property ownership journey with peace of mind, knowing you’ve taken every step to protect your family, your finances, and your future. Whether buying or selling, our services help you move forward with confidence and clarity, backed by dependable local expertise.

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