Proudly Serving Rochester and Southeastern Minnesota

To schedule a radon test ONLY: call/text Cindy at 507-696-9120

My name is John Mennenga. I am an InterNACHI Certified Professional Inspector® - performing inspections since 2004. I specialize in delighting you, my client, by providing superior service, and I derive great satisfaction knowing that I have helped you make a wise home buying decision. 

What sets me apart as a home inspector is my extensive training, education and experience coupled with great customer service. To sum up the way I work with you, my client, is "Always informative and educational - never alarming."


Offering a Radon Test with an inspection for ONLY $100* - Standalone Radon Test is $150*  We use state-of-the-art Continuous Radon Monitoring (CRM) machines which produce a detailed, easy to read and understand 3 page PDF report.  

*Nominal trip charge outside of Olmsted County may apply

Services Offered:  

  • Buyer Inspections

  • Radon Testing (Minnesota License RMEA-00136 and RMEA-00212)

  • New Home Construction Inspections

  • 11th Month Warranty Inspections

  • Investor Inspections (single unit, multi-unit and apartment complexes)

  • Authorized Supra Electronic Key Holder & ShowingTime Access

  • Plan Reviews

  • Independent Building Code Inspections

Inspections are conducted every day, including early morning, evening, all day Saturday and Sunday afternoon for your convenience!

Buying a house is a big decision. Good customer service starts with being there for for you when you need my services, at the time that fits your schedule!

“We worked with John for our initial radon inspection, and he was so knowledgeable and easy to work with that we brought him back for a full inspection on our home before our 1 year warranty expired. I was impressed by his thorough inspection, which included lots of helpful tips for us as first time homeowners. I highly recommend him!”

Paige P., Rochester

I have owned my business for 15 years and am proud to be an active member of many organizations. I am a member of the Minnesota Association of Home Inspectors (MAHI), Southeast Minnesota Code Officials (SEMCO), and Southeast Minnesota Area Realtors (SEMAR) affiliate member.

Additionally, I maintain a Minnesota Building Official Certification (#2501) and am a member in good standing with the International Association of Certified Home Inspectors (InterNACHI).  I am also licensed by the State of Minnesota as a Radon Measurement Provider (RMEA-00136). I earned an associate’s degree in Building Inspection Technology, a Certificate in Building Inspection Technology Core from InverHills Community College and a Housing Inspection Certificate from North Hennepin Community College.

Conspectus Home Inspection Services, LLC, is a Home Inspection business in Rochester, Minnesota.


Call or text 507-696-7330 with any questions or to schedule an inspection.