Proudly Serving Rochester and Southeastern Minnesota

In 2019, WE ARE celebrating 15 years of 5-star service to our clients!

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

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 my clients is, "Always informative and educational - never alarming."


Offering Radon Test with an inspection for ONLY $100* - Stand alone 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. The "Meaning of Results" produced by Olmsted County, is also included. Note: John Mennenga of Conspectus Home Inspection Services is licensed by the State of Minnesota as a Radon Measurement Provider (RMEA-00136).

*Nominal trip charge outside of Olmsted County may apply

Services Offered:  

  • Buyer Inspections

  • Radon Testing (Minnesota License RMEA-00136)

  • New Home Construction Inspections

  • 11th Month Warranty Inspections

  • Nationally Certified Radon Measurement Provider

  • OverSeeIt™ Inspector - Offering project oversight on all phases of construction

  • 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 my clients who need my services, at the time it fits their schedule!

“Even though we have bought and sold many homes in the past, John gave us an in depth education on the home we purchased. We were impressed with his professionalism and thoroughness, and the detailed report was easy to read and useful. The summary became our punch list after we moved in.”

-  Suzanne & Tom F., 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 a Nationally Certified Radon Measurement Provider, registered with the National Radon Proficiency Program (NRPP), ID #109075 RT. 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.