Full Lifetime Warranty

Milgard Full Lifetime Warranty

Deciding on windows and patio doors? Choose Milgard and enjoy an industry-leading warranty that is clear, easy to understand and comes with the best support possible for your windows and doors.

What is the Milgard Full Lifetime Warranty?

Milgard extends a Full Lifetime Warranty to the original purchaser of Milgard® windows and patio doors, which includes Tuscany® Series, Montecito® Series, Style Line® Series, Ultra™ Series/WoodClad™ Series, Essence Series® and Aluminum. Milgard will repair or replace any defect in materials or workmanship and will pay the costs of all parts and labor for as long as the purchaser owns his home. 

  • Feel confident that the work will be completed correctly by Milgard factory-trained technicians.
  • Easy service request process - just call (800-MILGARD) or submit a service request online. We'll get right on it.
  • The Full Lifetime Warranty will extend to glass breakage coverage on Tuscany® Series, Essence Series®, and Ultra™ Series/WoodClad™ Series products. 
  • If you sell your home, Milgard automatically extends warranty coverage for 10 years from the effective date of the original warranty to the successive owners, free of charge.
  • The MIlgard Full Lifetime Warranty is extended to products installed after 1/1/2012 in the U.S. and after 1/1/2011 in Canada. Please see residential and commercial warranties for coverage details of products outside this description. 


Effective October 1st, 2015, Quiet Line Series will no longer be covered under the Milgard Full Lifetime Warranty, but instead a 10-year warranty including parts and labor.

Beginning October 1, 2015, Quiet Line Series sound control windows will carry a 10-year warranty including parts and labor.  The warranty will be fully transferable for the full term of the coverage and apply to commercial and non-commercial applications. This warranty will only affect products sold and installed after October 1st, 2015.

Full Lifetime Warranty - effective 10/1/15

Quiet Line Warranty (Western Edition) - effective 10/1/15

Quiet Line Warranty (Eastern Edition) - effective 10/1/15


Residential & Commercial Warranties

Windows and Patio Doors, United States

United States Full Lifetime Warranty for Homeowners (126KB PDF)
United States 10-Year Commercial Warranty (127KB PDF)
Quiet Line Warranty (Western Edition) - effective 10/1/15
Quiet Line Warranty (Eastern Edition) - effective 10/1/15

Moving Glass Wall Systems Limited Warranty (108KB PDF)
Insulating Glass Units 5-Year Limited Warranty (99KB PDF)

Windows and Patio Doors, Canada

Canada Full Lifetime Warranty for Homeowners (504KB PDF)
Canada 10-Year Commercial Warranty (127KB PDF)
Export Warranty (1.45MB PDF)


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