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Mechanical Insulation Contractors

Bartelt Insulation is a full-service mechanical 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, four 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 industrial 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 industrial insulation contractor for all types of insulation projects.

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

Brick Tower Inside Of A Silo



We have worked closely with Bartelt Insulation for several years. Most recently they completed multiple ductwork insulation projects along with miscellaneous pipe insulation repairs of the plant.  We appreciate Bartelt’ s dedication to get the job done correctly, efficiently and with integrity. They have proven time and time again that they are responsive, act quickly, and are always willing to help with any and all our needs.

Aaron W.—Maintenance Planner

Metal Tubes
Industrial Worker
Industrial Tools

our capabilities

  • 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

Mechanical System

Custom Sewn Removable Insulation Blankets

Pipe and Tank
Industrial Insulation

Industrial Energy
Audit Case Study

Explanation Of What
We Offer

Industrial Mechanical System

bartelt insulation



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