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Congratulations on your recent window or patio door purchase. No matter which Great Lakes® Window product line or style you had installed in your home, you can be confident that you have selected a high performing and energy efficient window that will keep your home comfortable and beautiful for years to come. Learn how to clean and maintain your new windows.
And should you ever decide to move away, your warranty is completely transferable to the next homeowner. Now that’s peace of mind.
To register your warranty, you will need your order number. Find out how to locate your order number.