The Madison Group - Plastic Consulting EngineersPut years of plastics engineering experience to work for you
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85% of all Plastic Plumbing Failures have the potential for Subrogation Recovery

Common Failures

Examples of failures we analyze, but are not limited to:

  • Water filters
  • Toilet ballcocks, fill valves, floats, flappers
  • Hoses, pipes, tubes
  • Couplings, nuts
  • Valves
  • Appliance components
  • Housings, fans and structural components

Non-destructive testing

Our failure analysis for subrogation services typically involves a non-destructive visual inspection of the failed product or parts. We know most of these failures are smaller claims, therefore, for a reasonable cost our engineering services provide a comprehensive report that includes:


“We at MetLife Auto & Home consider The Madison Group (TMG) to be an invaluable resource. Prior to being introduced to your firm, we had a huge void in the area of investigating plastics failures. Not only has TMG been a cost effective alternative to the other generalized engineering firms we had been using, but my experience has been that the manufacturers we are subrogating against hold your conclusions in high esteem. Regardless where a plastics-related loss happens in the country, my first call is always to TMG.”

Mark Hagen, Sr. Subrogation Analyst, MetLife Auto & Home


  • Detailed visual analysis of failure
  • Analysis of function and operation of parts
  • Pressure testing
  • Optical low-magnification microscopy (when failure requires)
  • Color photographs and micrographs
  • Written reports (verbal when requested) signed by Ph.D. staff
  • Shipping of parts back to customer
  • Storage while part is being analyzed
  • Rebuttal

Destructive testing

For cases that require destructive testing or in-depth analysis we can provide:

  • Sectioning, cutting and disassembly of parts
  • Low and high magnification microscopy
  • Material, analytical and mechanical testing
  • Computer simulation analysis
  • Expert witness and litigation support

Our Specialty is Plastic

At The Madison Group we specialize in plastics. We devote all our resources to understanding the intricacies and subtleties of plastics. Our staff has years of experience in plastics failure analysis.

Our experience shows that plastic failures are typically due to a combination of factors rather than a change in one unique parameter. Our expertise in design and processing of plastic products enables us to understand why plastic parts under perform, malfunction and fail.


The Madison Group • 5510 Nobel Dr. • Suite 215 • Madison, WI 53711 • (608) 231-1907 • (608) 231-2694 (fax)


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