Bow Windows

We take great pride in selecting our vendors with the goal of providing you with the products of highest energy efficiency and aesthetics possible in the price range of that product. We strive to help you find an optimal, not just satisfying, window product for your home and budget. You will find excellent bow window choices that will fit Connecticut homeowners’ taste and budget.

OKNA Bow Windows – Superior Construction and Energy Efficiency

Bow windows are similar to bay windows. Both window styles project outside from the house, adding extra space and letting more light into rooms. Bow windows have a slightly curved (bowed) shape instead of the sharper angled shape of bay windows. While bay windows typically have three unequal sections, bow windows can have anywhere from three to six sections that are equal in size.

Benefits of Bow Windows

Change The Architectural Look of Your Home

Bow windows let you change the basic architectural look of your home – inside and out. They can open up any room and make it seem larger and brighter.

Beautify Your Home

Not only bow windows are designed for opening up rooms, they are also designed for beauty. They help create dramatic new appearances adding style to the exterior of your home as they expand interior space, light, view, and therefore the beauty of your home.

Add Value to Your Home

Our bow windows are the perfect addition to any Connecticut home. They create an instant feeling of light and view while providing a beautiful focal point. Any custom addition, such as bay window, adds to the value of your property.

Connect With Natural Environment

ince bow windows provide better views to your outdoors, they create the enhanced feeling of connection with the natural environment.

Create Additional Shelf Space

Bow windows expand space in the rooms. The expanded space of your room provides additional shelf space. This space can be used to grow your plants, flowers or vegetables. It can also be used to showcase your other things that are important to you, for example decorations, home accessories etc.

Add Light and Fresh Air

Because bow windows project outside the home, they will allow more light into it. Our bow windows have multiple-sealing, fully screened operating casement windows or double-hung windows that allow bringing in gentle breeze on the warm, sunny days.

OKNA Bow Window Features and Benefits

Seven Sun Windows proudly offers Bow Windows by OKNA Windows & Doors Inc. For over 30 years, OKNA has been manufacturing quality windows and patio doors. OKNA bow windows are comprised of all the characteristics of exceptional window design, meticulous attention to preservation of the traditional aesthetics, implementation of modern functionality and unparalleled energy efficiency.

The highest quality materials, attention to details in the construction process, superb designs, and the latest advancements in the window technologies, both for energy efficiency and aesthetics, make OKNA bow windows a beautiful addition to any Connecticut home.

Insulated Head and Seat Board

OKNA Bay and Bow Windows come in standard with ½ inch polystyrene insulation both in the seat board and the head board. Additionally, per homeowner’s request, we can add up to ¾ inch of insulation at the time of the installation.

Water Penetration Barrier

Water penetration barrier below each window and mullion prevents water penetration without the need to use silicone.

Silicone-Free Interior and Exterior

Silicone-free interior and exterior of OKNA bow windows ensures clean look of the finished product.

Standard Foam Insulated Mullions with Steel Rod

The mullions of bow windows are critical in helping to support the weight of the window because it projects outward. OKNA bow windows feature heavy-duty interior and exterior vinyl mullion profiles. The mullions are also reinforced with threaded steel rods for superior strength and stability. The cavity is filled with high density foam for additional thermal efficiency.

NO-Sag Support System

Our bow windows come with an adjustable turn-buckled cable support system to ensure that they will never droop or sag. Eyehook nuts are attached on two of the threaded steel rods and a 3” eyebolt lag is attached to the top of the window header or present roof overhang. The cables are attached to a turnbuckle and then it is adjusted to the precise pitch. Adjustable, hanging support system with 600 lbs. working load limit per brace.

HeatSeal Non-Metal Spacer

Most windows are manufactured with a metal spacer in between the two panes of glass, which may cause excessive condensation and heat loss. OKNA bow windows are manufactured with HeatSeal spacer. This non-metal spacer creates an excellent thermal barrier and reduces the transfer of heat and cold into the home.

Foam-Filled Window Frames

Windows sections in every OKNA Bay Window built out of Insul-Tec 500, Enviro-Star 800 and Casement 700 Deluxe Series come with insulated frame and sash for increased comfort and energy efficiency.

Tailored To Fit Your Needs

OKNA bow windows are custom-made to fit your exact window size, eliminating all the hidden costs and possibility of the job looking like afterthought.

Maximum Useable Seatboard

We offer a large selection of angles, degrees and sizes of flanker windows to customize the seatboard depth to meet your exact needs. With the systematic approach, calculations and planning, we can help you maximize useable seatboard area to display your plants and accent items on your new bow window.


Bow windows are available with casement, double-hung or picture windows style windows. So you can have the look and operation you want – that best fits the style of your home.

Myriad of Configurations

Maintenance Free Exterior

All exterior components of the OKNA bow window are completed in vinyl, thus providing a maintenance free exterior that will never need painting.

Edge Banding

The interior edge of the hardwood veneer comes with a finished edge. The finished edge will allow for the interior casing to be installed with a reveal.


Interior Colors

Our company offers five beautiful interior laminates in addition to the standard Euro-White and the optional Almond colored vinyl to give your home a distinct look. All options, besides Euro-White, are available at an additional charge.

Exterior Colors

OKNA Windows offers seven exterior stock color selections in addition to the standard Euro-White option to give your house a distinct look and enhance its curb appeal. You can also select custom exterior colors from a virtually unlimited selection of paints. Our paints are environmentally safe and durable, giving your exterior a vibrant and long-lasting color finish. Exterior colors other than Euro-White must have full screen. All options, besides Euro-White, are available at an additional charge.

Bow Window Photo Ideas