An exceptional value, Thermo-Tech® slider windows combine both performance and price appeal. Sliding windows are available in either 2-lite or 3-lite configurations.

Precisely engineered, Thermo-Tech® casement window systems ensure a tight, energy-efficient seal from top to bottom using multi-point locks. Plus, they foil break-ins better than single lock window systems. Our smooth-operating hinges open to a full 90° for easy cleaning from the inside. Design options are endless. Use them individually. Align them for a classic look. Or stack a fixed transom or half circle above two casement windows to create a contemporary style.

Thermo-Tech® fixed casement and direct-set window systems invite creative applications for new construction or renovation projects. Use fixed casements for simple picture windows or in multiple casement window units. Mulling them together creates a variety of combinations. Direct-set picture windows, our most versatile stationary option, can stand-alone or adjoin double-hung, single-hung or slider windows in impressive multiple-wide units. Transoms above them add an elegant touch. Direct-set windows follow the same standard sizes as fixed casements.

Thermo-Tech® awning window systems use two locking handles for a tight, energy-efficient seal from top to bottom. They also resist break-ins better than single-lock window systems. Our smooth-operating hinges open 45°, allowing easy cleaning from the inside. Awning windows complement classic styles when used alone or placed next to each other.

Thermo-Tech® double-hung windows combine traditional styling with our outstanding performance technology. We also engineer our double-hung windows to include standard features that most companies leave out. The result? Beautiful energy-efficient windows ready to enhance new or existing homes.

Traditional style, exceptional performance and appealing price make the Thermo-Tech® single-hung window one of our best values. Install single-hung windows side by side to beautifully complement a variety of multiple-window configurations.

Thermo-Tech® single-hung and double-hung windows are now available in cottage style. Choose a larger bottom sash to retain the original architecture of your home on retrofit applications. Or use the larger bottom sash to keep the meeting rail from your line of sight in your lake home. These windows have the same great Thermo-Tech® quality as our standard single-hung and double-hung units.

Maybe a smaller bottom sash is more your style. Now Thermo-Tech® offers single-hung and double-hung windows in oriel style, too. Keep the original look of your home when renovating, enjoy your lake view or just try something different. Oriel windows have all the quality and features of the standard single-hung and double-hung windows but give you the choice of having smaller bottom sashes.

Thermo-Tech® offers an array of standard multiple-wide units for impressive results. Specify casements, double-hung or single-hung windows, or any multiple-wide combination. Multiple-wide configurations with casement flanking units typically use a fixed casement picture window. Double-hung and single-hung units typically have a direct-set window. These multiple-wide units include all the standard features and benefits of their respective window types.

Thermo-Tech® 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.

Thermo-Tech® stationary transom windows fit exactly over our standard-size operable and stationary windows. Direct-set transoms are designed to stack vertically on single-hung, double-hung and other fixed units. Fixed casement transoms match the framing of our casement windows to ensure a consistent and seamless appearance. For dramatic wall effects, use the transom window to extend the vertical reach of windows. As with all of our windows, Thermo-Tech® offers custom options for virtually limitless possibilities. Let your imagination be your guide.

Round-top windows from Thermo-Tech® decidedly enhance a home's character. Simplify the design process with our standard sizes in popular decorative shapes, including elliptical, quarter rounds, half rounds, extended half rounds and extended elliptical windows. Combining standard styles maximizes your plan at a minimum cost. Or opt for custom sizes to perfectly match your design specifications. These windows work equally well as single units or joined with any of our window systems. Create combinations of shapes and styles for stunning curb appeal.

Ellipse windows blend all-round charm and beauty with the practicality of low maintenance and energy efficiency. Ellipse windows can be installed as single units or joined to casements, double-hung, single-hung and awning units.

Thermo-Tech® windows can create a truly custom look with the ultimate in design features. We build each specialty window to your exact specifications. Whether you want trapezoids, triangles, hexagons, pentagons, octagons or more, Thermo-Tech® specialty windows are available in just about any angle or slope required. Use these windows as single units or combine them with any of our other window systems.

Thermo-Tech® sliding patio doors, like our entire window line, are designed for superior performance and energy efficiency. Sliding patio doors are available in either 2-lite, 3-lite or 4-lite configurations. Add a factory-mulled transom for more variety!

Thermo-Tech® Sliding French Patio doors are engineered for superior performance and energy efficiency. Operation is superb via dual ball bearing adjustable rollers. Classic French style doors have wider stiles and rails for more of an upscale look, enhancing the appearance and value of your home. Custom-fit to your rough opening or fourteen standard sizes to fit some of those old patio door rough openings without adding on the exuberant cost.

The new Slim Line Patio Doors by Thermo-Tech® are engineered for superior performance, durability and energy efficiency. High-performance insulated glass provides comfort and energy savings. Dual ball bearing adjustable rollers make operation a breeze. The sleek lines and slim stiles and rails offer a contemporary and upscale look with a maximum viewing area.

Make a grand entrance with Thermo-Tech® Botanica garden doors. We've redefined the garden door, balancing style and performance with an all-vinyl swinging door for low maintenance and energy efficiency.

Even our "standard" windows look customized with our multiple design options. Choose a grid pattern to echo your design motif. White, sandalwood or tan color vinyl selections, light or dark oak wood laminate, brick mould and decorator tinted glass complement the look, too.

Thermo-Tech® has a full range of replacement and new-construction window accessories, including male and female sill expanders, snap-in j channel, flanges and more. Plus optional nailing flanges and jamb receptors make installation and operation simple.

For even more customization, Thermo-Tech® offers five colors that compliment today's lifestyles - from contemporary to classic. Available in white, tan or sandlewood our vinyl colors not only look good, they're easy to maintain with color throughout and the low maintenance inherent in vinyl. Thermo-Tech® also features our new interior wood laminate colors, Light Oak and Dark Oak for a real wood look without the hassles of real wood.