Andersen 100 Series Insulated Glass Seal Failure Investigation

Migliaccio & Rathod LLP is investigating reports that Andersen 100 Series windows may experience premature insulated glass seal failures, allowing moisture to enter between the panes of glass and causing persistent fogging, cloudiness, or condensation.

Andersen markets its 100 Series windows as durable, energy-efficient products that incorporate insulated glass units designed to provide long-term performance. However, some homeowners have reported that the insulated glass seals failed years before they expected, allowing moisture to enter the sealed glass unit. Once a seal fails, the moisture often cannot be cleaned from the inside or outside of the window because it is trapped between the panes.

This investigation concerns premature insulated-glass seal failures and is separate from investigations involving window sash, frame, or hardware defects.

Reported Problems with Andersen 100 Series Windows

Consumers have reported experiencing:

  • condensation trapped between glass panes;
  • persistent fogging or hazy glass;
  • cloudy windows that cannot be cleaned;
  • premature insulated-glass seal failure;
  • reduced visibility through affected windows;
  • replacement of insulated glass units years before expected; and
  • warranty disputes concerning replacement costs or labor.

Potential Consequences

Premature seal failures may result in:

  • diminished appearance of the home;
  • reduced energy efficiency;
  • decreased insulating performance;
  • replacement of insulated glass units;
  • labor expenses not covered under warranty; and
  • repeated repairs if multiple windows develop similar problems.

We Are Interested in Hearing From Homeowners Who Experienced:

  • fogging between the panes of Andersen 100 Series windows;
  • cloudy insulated glass that cannot be cleaned;
  • condensation inside sealed glass units;
  • premature insulated-glass seal failure;
  • warranty denials or limited warranty coverage;
  • replacement costs for failed insulated glass units; or
  • similar problems affecting multiple windows.

If you purchased Andersen 100 Series windows and experienced these or similar issues, we would like to hear from you.

Please complete the contact form on this page, send us an email at [email protected], or call (202) 470-3520 for a free, confidential evaluation.

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