Bay and Bow Windows

Thermal King Bay Windows and Bow Windows are built to stop energy loss while letting in the beautiful outdoors. Your room will feel larger and more cozy, all while maintaining energy efficiency. 

Let us show you the perfect window.


Thermal King Bay Windows and Bow Windows are available with both casement and double-hung options, so you can create your own style. Enjoy lower energy bills even with larger windows, thanks to our exclusive Triple Insulated EGIII KR IS Glass System. It has multiple layers of Low-E Glass and two insulated chambers filled with Krypton Gas. Combined with our patented foam Super Spacer it makes Thermal King Windows 250% better and even 93 Percent more efficient than most other windows in the Nation.

Thermal King Window are built with maximum strength and security.  Our frames and sashes are fusion-welded and guaranteed to never warp, sag or bow.  The fiberglass-reinforced sash rails also provide unsurpassed strength and durability.  All double hung windows over 26 inches have two flush-mounted sash cam locks for added safety.  Our interior glazing bead deters glass removal from outside the home which provides maximum security and waterproof seal that protects the insulated glass.  Double-hung windows have ventilation limit locks so you have the peace of mind to know your windows are secure even when partially open.   For added security on Casement windows, our easy to reach multi-point locking system locks securely in several places along the window jamb.  For ease of use, the entire system is activated by a single handle that folds down into the pedestal.   

Have Questions?

We are always available by phone or online to answer any questions you might have. 

Thermal King Windows offer an authentic wooden look available in many beautiful wood grain finishes.  If you love the traditional look of multi-paned windows but hate the work that is traditionally involved in cleaning them, you’re in luck.  Thermal King Windows offers many glass options with integral grids decorative muntins mounted between the insulated glass for easy cleaning.  Choose from Beveled, leaded, Classic, Narrow Brass, Williamsburg or Georgian Colonial styles.  Or, for a contemporary twist on this perennial favorite, choose one of our beautiful Regal V-groove cut glass grids.  All of our insulated glass carries a lifetime transferable glass breakage warranty.

Whether your dream landscape is your garden, the forest, a river, or the 18th hole, some views just beg to be seen. When a standard window doesn’t do justice to your surroundings, Thermal King Windows bay or bow windows can provide the sweeping panoramic view that you deserve. With Thermal King Windows premium quality materials, superior construction, and energy efficient features, it’s super easy to enjoy the beauty of the great outdoors without paying to heat and cool it. Or leave the scenery in the background and turn the window itself into a dazzling focal point with our custom glass options. From an interior design perspective this is the perfect addition to bring the outdoors inside to accent your breathtaking indoor living space with a touch of nature. 

Energy Star Windows and Doors

Not just some, but ALL of our products are Energy Star qualified. The Energy Star Program was created by the U.S. Department of Energy and the U.S. EPA to make it easier for consumers to choose the most energy efficient products. This label certifies our products meet or exceed the federal energy efficiency standard. 

Let’s Build Something Together

Our simple and hassle free process guarantees that your home improvement project will give you stunning results, guaranteed. 

No Obligation, Free Estimate

Our team is ready to help you and is specifically trained to help provide solutions, not sales gimmicks. You can schedule with us online or over the phone and our team will provide you with a totally free estimate. 

High Quality, Energy Efficient, Perfection

Once we have the specifications for your windows our project engineers will begin crafting our patented, industry leading, triple pane windows just for your home. We follow the same process for our beautiful exterior doors. 

Window, Door, and Siding Installation. With a smile.

Our installation technicians are expert craftsmen. But, they are also highly trained customer service professionals. We pride ourselves on the ability to complete your project on time and with friendly staff who ensure you have a positive experience. 

Perfection Guaranteed

We don’t just sell great windows, doors, and siding, we guarantee it. Our windows will never stick, rot, warp, fade, or fail. In fact, if they do, we will come out and replace it, no questions asked, period. We pride ourselves on quality and virtually maintenance free products for our valued customers.