The
ultimate in assurance.
That's the guarantee you get
when you choose Great Lakes Windows & Doors™
. Your new windows will not only
reflect and enhance your home's beauty, they're also built to last.
Each of Great Lakes Windows
& Doors™ custom made windows is manufactured with a fusion-welded
vinyl sash and multi channel main frame for added strength and rigidity. Years of
continual operation and harsh weather won't diminish their
performance and quality.

Great Lakes
Windows & Doors™ help to pay for themselves through easier maintenance, lower
energy costs and the increased resale value of your home. Add all that to
our Personal Lifetime Warranty® and you know you have made a great
investment. Great
Lakes
Windows & Doors help to
protect, beautify and make your home more comfortable. They're an
investment you'll make with confidence.
Our exclusive
EnerGuard
Window System™ package
is available for all our window products. This will provide the home owner
with the utmost in energy efficiency available at the time of manufacture. Since 70% of a
window is glass, real heating and cooling savings come from improved glass
performance. Our combination of UV-filtering Low-E Glass, insulating argon
gas and the
Swiggle Seal
Warm Edge Spacer system, creates significant increased energy efficiency.