Proudly Serving Rochester and Southeastern Minnesota

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/home-selling decisions.

To sum up the way I work with my clients is, "Always informative and educational - never alarming."


Services Offered:  

  • Buyer and Seller Inspections
  • Pre-Listing Consultations
  • Radon Testing
  • 11th Month New Home Construction Inspections
  • Nationally Certified Radon Measurement Provider
  • OverSeeIt™ Inspector - Offering project oversight on all phases of construction
  • Authorized Supra Electronic Key Holder
  • Plan Reviews
  • Independent Building Code Inspections
  • Federally Certified HUD/FHA 203K Building Consultant
  • Other specialty consultations and inspection services

Inspections and consultations are conducted during regular business hours.  In addition, early morning, evening, all day Saturday and Sunday afternoon time slots are available for your convenience!

Buying or selling a house, is a big decision. I believe that good customer service starts with being there for my clients, when they need my services, because I know that you work, too!

“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

What sets me apart as an InterNACHI Certified Professional Inspector®  is my extensive training and education:

I am a Nationally Certified Radon Measurement Provider, registered with the National Radon Proficiency Program (NRPP), ID #109075 RT.  I earned an Associate’s Degree in Building Inspection Technology;  and a Certificate in Building Inspection Technology Core from InverHills Community College. I also earned an Housing Inspection Certificate from North Hennepin Community College. 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).

Member of Minnesota Association of Home Inspectors (MAHI), Southeast Minnesota Code Officials (SEMCO), Business Network International (BNI) - Zumbro Valley Chapter, Rochester Area Chamber of Commerce, and Southeast Minnesota Realtors (SEMR) affiliate member.

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


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