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Industrial Insulation Contractor / Sewn Insulation Blankets

Custom Removable Insulation Blankets

Bartelt Insulation is a full-service mechanical systems insulation contractor specializing in commercial, industrial, and refrigeration projects. Bartelt's expertise covers a wide range of applications for the pulp and paper industry, the plastics industry, food processing, refrigerated dairy operations, custom sewn removable insulation blankets, and many others.

Since 1944, three generations of the Bartelt family have been providing professional insulation services. No matter how large or complex the project, Bartelt Insulation has the skilled union tradespeople to complete the job safely, on time and on budget.

Thermal insulation provides an immediate reduction in greenhouse gas emissions and saves industrial and commercial building owners money, whether the role of insulation is energy conservation, temperature retention, condensation control, freeze protection or burn protection for workers. Our experience gives us the knowledge to match the insulation product and application to your needs. From new construction to remodeling, we're your qualified insulation contractor for all types of insulation projects.

We service businesses and industry throughout Wisconsin, Upper Michigan and Northern Illinois.


  • Piping
  • Ductwork
  • Firestop
  • Cold-storage insulation
  • Noise-control panels
  • Marine insulation
  • Insulated panels
  • Material sales
  • Polystyrene and polyisocyanurate foams
  • In-plant maintenance service
  • Energy audits
  • Custom sewn removable insulation blankets
  • Tank and boiler insulation
  • Large inventory for quick response time
  • High Temperature Insulation