Master Mechanical Insulation Personnel

Mary Jo Pethke

President
Mary Jo founded the company in 1990 and has 33 years experience in the industry.

Jeff Pethke

Vice-President
Jeff has been with Master Mechanical Insulation since June of 1990. Prior to MMI he spent 18 years with Johns Manville Detroit Contracting Unit starting as superintendent and ending out as the Detroit unit manager.

Justin Pethke

Vice-President
Justin has been with the company for 18 years and is a graduate of Western Michigan University.

Rob Bergman

Operations Manager
Rob comes from the field with 24 years of experience in the industry.

Tyler Salah

Estimator / Project Manager
Tyler comes from the Pipe Fitter field with 6 years of experience.

John Simonian

Superintendent
John brings 20 years of field experience.

Evan Bergman

Material Manager


Laura Ball Carey

Office Manager








Call (248) 581-0033 or click for industrial insulation or HVAC services.




Master Mechanical Insulation | Insulation Contractors, Troy, Michigan

Serving the entire state of Michigan, but primarily Southeastern Michigan including: Detroit, Warren, Sterling Heights, Lansing, Ann Arbor, Flint, Dearborn, Livonia, Clinton, Troy, Farmington Hills, Southfield, Rochester, Pontiac, Royal Oak, Saginaw, & Midland.