Frequently Asked Questions

To determine whether your warranty is transferable as a subsequent homeowner, please view the Warranty Information page where you can find complete warranty information by year and location.

It is not possible to extend the warranty if it has expired or was not transferable. However, if you need service and no longer have a warranty please contact one of our Certified Dealers who can help you with repairing your windows. 

Stress cracks or cracked glass is caused by improper installation, storage, or handling, which cannot be controlled by Milgard. Milgard ensures that the glass units manufactured in our facilities are of the highest quality upon delivery to our dealers.  

If you do have a glass crack in your Milgard product, please contact one of our Certified Dealers or 1.800.MILGARD to schedule service.

To ensure clarity and exceptional performance an occasional cleaning is necessary for all glass types. The best practice is to clean glass with a mixture of mild dish soap and water. When finished, rinse completely with clean water and wipe dry with a soft cloth.

NEVER use any of the following products on any part of your window or patio door as they may damage the glass surface or insulating seal.

Milgard’s window and door hardware is protected by special coatings and lubricants. However, these coatings and lubricants can be damaged by common household products and harsh environmental conditions, such as coastal and industrial areas. These conditions can cause the windows and doors to become more difficult to operate and cause the hardware to wear or corrode faster.

Loss of functionality of hardware in highly corrosive environments, which includes any Home located within two miles of salt water and any Home located in the State of Hawaii, is excluded from Full Lifetime Warranty coverage.

In order to maintain the appearance and function of your hardware for years to come, we recommend that hardware be inspected once a year (more if necessary) and cleared of dirt and grime build up.

Please reference the FAQ questions: How do I clean my hardware? How do I lubricate my hardware?

After the hardware is clean and dry it must be lubricated to restore the smooth operation and corrosion resistance. There are a number of commercially available products which can be used. Be careful not to apply excessive amounts of grease. Wipe up any drips or spills when applying grease since it will stain wood.

If you would like a recommendation on which lubricants are best for certain hardware parts, please call a Milgard Sales Representative at 1.800.MILGARD.

For paint finish scratches on vinyl or fiberglass please consult a painting professional. They can help with professional touch ups or re-application of the finish.  

If you have scratches on an interior wood veneer (thin piece of wood) frame or door and would like the scratches removed you can submit a service request form or call 1.800.MILGARD. A Milgard certified technician would remove the scratched interior section of the frame and re-apply a new wood section.  This service is not covered by the Full Lifetime Warranty. 

We do not suggest adding a tint to your window glass as this will void your warranty on the insulated glass unit. Applying tint can cause excessive heat to the insulated glass causing the unit to prematurely fail.

Milgard does not sell directly to the customer. You can purchase products through Milgard Certified Dealers. They will ensure you order products that are sized to fit weather-tight, operate seamlessly, and are installed correctly.

You can find a list of dealers in your area by simply entering your zip code on our website or by calling 1.800.MILGARD.

Milgard manufactures windows with an optional factory-installed window opening control device (WOCD).  Our window opening control device limits the window sash opening to less than 4”, helping to prevent dangerous falls in children under 5 years old.

If you would like more information about the WOCD device and which products can be installed with a WOCD, please visit our WOCD information page. To learn more, please contact your local dealer or call 1.800.MILGARD