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Lon's Education & Credentials



American Society of Home Inspectors (ASHI)


  • Co-founder ASHI, GLC  (American Society of Home Inspectors, Great Lakes Chapter)

  • President of American Society of Home Inspectors- Great Lakes Chapter 1988-1990

  • Former National Treasurer of ASHI

  • Master Inspector by Review, ASHI, GLC (M.I.B.R.) 1990

  • Chairman of ASHI Ethics Committee – 1996-Present

  • “Inspector of the Year” awarded by ASHI

  • Member, American Society of Home Inspectors (ASHI)

  • Recommendation by ASHI for Outstanding Commitment

  • ASHI Inspector Mentor

  • ASHI Certified Inspector, (ACI) since 1981

  • Chairman of ASHI Planning Committee 1990-1991

  • Director of ASHI Planning Committee

  • Contributing Writer - The ASHI Reporter

National Association of Home Inspectors (NAHI)


  • Member, National Association of Home Inspectors (NAHI)

  • Certified NAHI Inspector Trainer

  • Certified Residential Inspector, NAHI 2006

Additional Certifications & Licenses 

  • Licensed Builder, State of Michigan

  • Licensed Heating and Air Conditioning Contractor

  • Licensed Asbestos Contractor/Supervisor of Michigan

  • Building Officials and Code Administrators (BOCA)

  • Certified Real Estate Inspector (CRI)

  • Certification from the Masonry Institute of Michigan

  • Certified Solid Fuel Safety Technician (1983)

  • Certified Steep Slope Roof Inspector (#753)

  • Member, International Code Council (ICC)

  • Member, Michigan Association of Home Inspectors (MichAHI)

  • Founding Member of the Michigan Association of Home Inspectors (MichAHI)

  • Member, Michigan Mechanical Inspectors Association  (MMIA)

  • Building Officials and Code Administrators

  • Michigan Association of Realtors – Life Member Award 1989



  • Home Repair Columnist – Detroit Free Press (29 years)

  • Featured on ABC’s Good Morning America

  • Former Co-host of “Ask the Handyman” show on WXYT-AM

  • Former Host of Fox 2 Eyewitness News – “Around the House” segments for 8 years

  • Hosted WWJ News Radio 950 “On the House” segments for 8 ½ years

  • Featured Home Repair and Inspection Expert on WJBK-TV, WXYZ-TV, WDIV-TV, WXYT-AM, WEXL-AM, WCAR-AM and WJR-AM

  • Author of the ABC’s of Residential Real Estate Inspections. Published in the Institute of Continuing Education newsletter for the legal profession

  • Author of “Around the House” book

  • Assisted in writing the Inspection chapter of the Michigan Real Estate Transaction Manual






  • Emergency Program Manager – An Orientation to the Position

  • Building for the Earthquakes of Tomorrow

  • Household Hazardous Materials – A Guide for Citizens

  • An Introduction to Hazardous Materials

  • Anticipating Hazardous Weather & Community Risk

  • Animals in Disaster, Awareness and Preparedness

  • Introduction to the Incident Command System, 1-100 for Law Enforcement

  • Introduction to the Incident Command System

  • Exercise Design

  • State Disaster Management

  • National Incident Management System (NIMS)

  • ICS for Single Resources and Initial Action Incidents

  • Principles of Emergency Management

  • Emergency Planning

  • Leadership and Influence

  • Decision Making & Problem Solving

  • Coordinating Environmental & Historic Preservation Compliance

  • Effective Communication

  • Developing and Managing Volunteers

  • Retrofitting Flood Prone Residential Structures

  • Disaster Basics

  • Introduction to the Public Assistance Process

  • National Incident Management System Multi-Agency Coordination System

  • Completed the Professional Development Series & Certified Through the Department of Homeland Security & FEMA

 Recent Continuing Education & Training

  • Concrete Raising & Building Stabilization

  • Asbestos Refresher Course

  • Furnace Inspections & Defects

  • Inspection of Exterior Cladding

  • Advanced Electrical Inspections

  • Crawlspace & Floor Structure Defects

  • Sewer Pipe Inspections

  • Air Conditioning-Beyond the Basics

  • Michigan Builders License- Continuing Competency

  • Advanced Learning- Inspection of the Exterior Cladding

  • No Dig Pipeline Rehabilitation

  • Plumbing-Commercial & Residential

  • Insulation- When you need to Know

  • Asbestos Contractor/Supervisor Continuing Education

  • Common HVAC Issues

About Lon Grossman

Lon is a certified master inspector in ASHI (American Society of Home Inspectors). He also maintains credentials with BOCA, Radon Mitigation, and Mechanical Contractors Association. He is a licensed Asbestos Abatement contractor and HVAC contractor, as well as a licensed builder.


Lon is the president and owner of Technihouse Inspections, Inc., a residential and commercial inspection company in Bloomfield Hills, MI for over 40 years. He wrote a weekly question and answer column in the Detroit Free Press. He was a syndicated columnist for the Eccentric newspapers. Lon was a contributing writer for Inspire Magazine, Detroit Homes magazine, and Consumers Digest, as well as numerous other publications. Lon is the former co-host of the weekend “Ask the Handyman” show on WXYT-AM Talk Radio. His book “Around the House” offers help for the do-it-yourselfers in an easy to understand format.

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