Premium Custom Windows & Doors
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Thermo-Fit Bow & Bay Replacement Windows

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Thermo-Fit Bow and Bay windows arrive fully assembled and ready to install. They come complete with jamb extensions, head and seat board and cable support system. Choose a Bay window configuration with 30° or 45°angles or choose a Bow window with a 4-lite, 5-lite or 6-lite configuration. Always charming, Bow and Bay windows accommodate a variety of combinations with Double-Hung, Single-Hung or Casement window units. As with all our products, custom sizes are available. Just ask your customer service representative for more information. Learn more about Thermo-Fit custom replacement windows.

Glass

Standard Glass

Our Standard LoDz™ 272/Argon Glass Is Anything But Standard

loe3_seasons_graphicThermo-Tech Classic Series Windows come standard with double-pane insulated LoDz™ 272/Argon glass featuring two panes of double-strength glass filled with argon gas for superior insulation. LoDz™ 272/Argon blocks enough solar heat that cooling loads can be cut by 25% or more compared to ordinary low-E and clear glass. The heat of the sun is composed of visible light and invisible infrared energy. LoDz™ 272/Argon allows the daylight to pass through the glass and filters out solar heat, blocking 84% of the sun’s harmful ultraviolet rays. Plus the insulating value of LoDz™ is nearly double that of an ordinary non-LoĒ™ insulated glass.

Available Glass Upgrades


High-Performance Lodz™ 366/Argon

Upgrade to Lodz™ 366/Argon heat-reflecting glass for even more insulating power and optimal thermal performance. Lodz™ 366/Argon heat-reflecting glass delivers the ideal balance of solar control, thermal performance, high visibility and the highest levels of energy saving in a double-pane insulated glass unit. Plus, Lodz™ 366/Argon provides excellent fade protection, blocking 11% more ultra violet light than standard LoDz™ 272 glass.

  • Lowers energy costs = saving on heating bill
  • Blocks 95% of harmful UV rays = reduced fading on carpet, furniture, etc
  • Year round comfort = cooler in summer, warmer in winter
  • Reduced condensation
  • Average heat loss reduction compared to standard double-pane glass is 50%

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Energy Guard Triple-Pane High Performance Glass

For maximum energy savings and optimal sun protection, step up to Energy Guard triple-pane insulated glass.

  • Three panes of double-strength glass provide superior energy efficiency and greatly increase the comfort level of your home
  • Two glass surfaces with Lodz™ 366
  • Two air spaces of insulating Argon gas
  • Energy Guard windows are available in the following styles: casemet, fixed casement & direct set windows, fixed casement & direct set windows transoms, awning , bow & bay, half round and quarter round, ellipse and specialty windows.

Learn more about Energy Guard > 

Other Glass Options

Obscure

Obscure glass protects your privacy while allowing abundant light to enter the room. Choose from a variety of colors and texture patterns for a translucent to semi-opaque effect. Contact your dealer for more information. Visit our Dealer Locator or call 1-877-565-0159 for a dealer nearest you.


Grey or Bronze Tinted

Tinted glass provides additional shading from direct sunlight and warm conditions. A variety of tones and thicknesses are available. Contact your dealer for more information. Visit our Dealer Locator or call 1-877-565-0159 for a dealer nearest you.


Tempered Safety Glass

Tempered safety glass is extremely strong and often used for its safety characteristics. If tempered saftey glass does break, it breaks into small pieces without sharp edges. Standard for patio door, side lights and even bathroom shower and tub enclosures, tempered safety glass is ideal for reducing the likelihood of injury in the event of breakage. Contact your dealer for more information. Visit our Dealer Locator or call 1-877-565-0159 for a dealer nearest you.

Colors

Color Options

Exterior Frame Colors

In addition to standard white vinyl, frames are available in two other exterior colors to match virtually any home style or color.

white

White

tan

Tan

sandlewood

Sandlewood


Interior Wood Laminate Colors

Get the warmth and classic beauty of wood with the comfort and ease-of-maintenance of vinyl. At Thermo-Tech, we never stop improving our vinyl windows and doors. We always start with expert design, durable construction and maintenance-free 100% virgin vinyl. But it’s the finishing touches that are turning heads – like our wood laminates featuring the warmth of wood and the maintenance-free insulating power of vinyl.

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Light Oak

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Dark Oak

Available on our 2-lite Classic Patio Doors, Fixed Casements, Direct-Set Picture Windows, Double-Hungs, Sliders, Casements, and our Geometric and Radius Windows. Available in White or Sandlewood exterior.

Hardware

Custom Hardware Colors


Heavy-duty low-profile hardware is available in white, tan or sandlewood to match your window color. Or choose optional metallic finishes for a more elegant look.

Standard Hardware Colors
white

White

tan

Tan

sandlewood

Sandlewood

Custom Hardware Colors
brass

Brass

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Antique Brass

oil_rubbed_bronze

Rubbed Oil Bronze

Grids

Distinctive Grid Styles

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Flat grids between the glass are available in a variety of configurations and colors to match our vinyl windows and doors.

Flat Grids Configurations

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Grid configurations vary by window style and size. Please ask your dealer for more information about grid options for specific window styles and sizes.

Performance

Energy and Structural Performance Data

Thermo-Tech Premium Windows and Doors are thoroughly tested for structural and thermal performance according to the most widely recognized national standards, including the American Architectural Manufacturers Association (AAMA) window specifications. The numbers tell the story: every Thermo-Tech product is built for a lifetime of reliable, energy-saving performance.

When you're shopping, compare structural and thermal performance ratings. Look for the performance grade (PG), which measures the window’s resistance to wind and rain. The higher the PG rating, the better. And check out the National Fenestration Rating Council (NFRC) label for an accurate method to evaluate a product’s energy performance and to ensure the windows are Energy Star® compliant in your area. Thermo-Tech windows are Energy Star® rated in both the U.S. and Canada.

See how Thermo-Tech Premium Windows and Doors measure up. Check out the performance data >

Thermo-Fit Window Styles

Select a window style from below to learn more.

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Warm Edge Technology

Reduces interior condensation and cloudy glass.

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Insulated Glass

At the heart of every Thermo-Tech window and door.

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Inspirations
Photo Gallery

Some of the most photogenic windows and doors around.

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