Energy Performance Remodelers, LLC     -  MN (763) 295-6179  WI (715) 403-3332
energy performance remodelers
Classically styled and powerfully built, Gentek windows are backed by more than three decades of window manufacturing expertise.  Pride in our products and craftsmanship are at the heart of our commitment to quality.  It's what makes our windows among the best in the industry, and our service second to none.
Gentek windows are performance engineered for outstanding energy efficiency, beauty and durability.  Incorporating true warm-edge technology, heavy-duty frame construction, a highly durable balance system and insulating glass features, our windows consistently meet or exceed nationally recognized and accepted American Architectural Manufacturers Association (AAMA) test standards and criteria.
Gentek windows offer a variety of options to meet your specific needs, including insulating glass packages to maximize energy savings and achieve the ENERGY STAR rating for energy efficiency.  Choose from classic white or beige exteriors, as well as a generous selection of interior frame finishes, grids and decorative glass options. 
Not only will Gentek windows add a new level of comfort and beauty to your home, they will enhance its value.  Attractive, low-maintenance windows are an important amenity that can dramatically increase the "curb appeal" of your home.  In most cases, you can expect to recover more than half of the cost of your replacement windows when it's time to sell.
In addition, Gentek replacement windows carry one of the strongest warranties in the industry.  From the extrusion and parts to the glass and construction, a lifetime limited warranty with transferability provisions provides valuable coverage.
We carry a wide range of energy performance windows to suit a variety of budgets and tastes. Our most popular popular windows are shown below. Please call or stop by for more information on products, current promotions and custom options.
Exceptional design combined with a window system which provides the best overall energy ratings. Serious windows have the highest energy ratings available
SeriousGlass & SeriousWindows
in Hospitals and Medical Office Buildings
Serious Fiberglass Windows
Serious Fiberglass Windows
SeriousWindows fiberglass products are our top performing windows.

Ranging from an insulation rating of R-7 to R-11, our sustainable foam insulated windows have performance innovations that increase comfort, save money, and look great.
Environmentally Friendly
Fiberglass is a natural insulator and is 500 times less conductive than aluminum.
Also, because it's made of glass, the frame expands and contracts at the same rate as the glass in the window which further reduces energy leaks--unlike other window frames made of wood, aluminum, or vinyl.

Serious Vinyl Windows
Serious Vinyl Windows
Save More on Your Energy Bills!
Up to 4x Better Than Other Major Brands.

Setting a new standard
$1500 is Yours with the Energy Efficiency Tax Credit
Save Serious Money and Energy with Serious Windows!
Purchase SeriousWindows and save energy, save money, and qualify for a credit of up to $1500 on your federal income tax. SeriousWindows and doors can save you serious money by reducing your energy bills by up to 50%.
SeriousWindows 501 Series
Serious Materials’ SeriousWindows 501 Series offers incredible thermal performance at a reasonable price.

SeriousWindows 501 are finely crafted vinyl replacement windows that will increase the beauty and value of your home. Each individually constructed window has special features that provide the ultimate in strength, durability, comfort and trouble free operation. With a limited lifetime warranty and guaranteed energy savings pledge, these windows are proven to save you money by significantly lowering your heating and cooling costs.

There is no better time to do something good for the environment and your pocketbook.

On February 17, the President signed The American Recovery and Reinvestment Act of 2009 that makes energy efficient home improvements even more affordable. The new tax credits refund up to 30% of the cost of the eligible windows and doors up to a limit of $1,500. Qualifying window and door products must have a U-Factor of 0.30 or lower and a Solar Heat Gain Coefficient (SHGC) of 0.30 or lower.

SeriousWindows vinyl replacement and new construction windows are the lowest cost way to gain indoor comfort and energy savings. The energy efficiency, beauty, and care-free maintenance make SeriousWindows the ideal window for any home remodel or new construction project. Other replacement windows lack the thermal performance and maintenance free features that are built into our windows. SeriousWindows vinyl product line will help you save money in energy costs and deliver the quality window that you demand.

SeriousWindows vinyl products are available in an array of colors, styles and designs and allow you to customize your windows to match the interior and exterior of your home. SeriousWindows also offers a range of vinyl patio doors that improve the look and energy efficiency of your home.

All Serious windows have performance innovations that increase comfort, save money, and look great!
Serious Windows
Serious Windows
replacement windows