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.

Technihouse Inspections

4940 Rands Rd.

Bloomfield Hills, MI. 48302

Providing Home Inspections and Commercial Inspections in the Greater Detroit Area of Oakland, Wayne and Macomb Counties

©2019 by Technihouse Inspections.

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