A Quick Glimpse at how Viwinco Windows are Made

Watch President David Barnes give a quick behind the scenes look of how we produce our windows! Learn about the different departments and stages that a window will go through before it is shipped and delivered to our distributor locations.  

Behind the Scenes at Viwinco Windows


Cutting the glass is one of the first steps.  We start with a 72x 84" sheet of glass, senthrough GED's CleanCut i – 3 Cutting & Edge Deletion system that will cut the sheet into various sizes depending on ordered windows. The table will first edge delete the low-e coating from all four edges of the glass and then it will get scored to the correct size.  The edge deletion procedure helps create a better glass seal by making sure the spacer is sealed to the actual glass and not the low-e coating.  Once the glass is scored, it will easily snap apart. Windows are batched via optimization software that sorts windows by size to reduce waste. We try to recycle all glass and vinyl that is not used. 

GED CleanCut i – 3 Cutting & Edge Deletion system -Viwinco


Moving on to the Insulated Glass Unit (IGU) where the Intercept ULTRA® stainless-steel warm edge spacers are made and the grids are applied. The glass will then go through the glass washer. The spacer is applied to the glass and sent down the line to the oven, where the glass unit is sealed before getting filled with Argon gas. When the IGU is filled and sealed it is sent to its proper department depending on the style of window. 

Cutting and welding the vinyl is all computer automated. Viwinco purchases all vinyl froDeceuninck North America.  Deceuninck is a fully integrated design, compounding, tooling, and PVC extrusion company that produces energy-efficient vinyl window and door systems and composite applications for the building and construction industry. The 20-foot lengths of vinyl are sent through the Multiprocessor.  This machinery will cut and fabricate necessary holes for either hardware, internal weep holes, or for installation. Once the vinyl is fabricated it will exit the Multiprocessor and its own unique label will be created. The label will be attached to the sash frame member and sent off to the welding stations. The welding machines will melt the vinyl at 480 degrees Fahrenheit joining them into one-piece structural frame. All four corners will need to be cleaned before the glass can be adhered. The vinyl frame will go in to the corner cleaner which uses a combination of drill bits, saw blades, and sparking knives to clean off all excess material. Watch GEDs Roboclean™ (RC 2000) one of our inhouse corner cleaner machines. 


The vinyl frame will then go through a machine called the Glazing table.  This station will apply the sealant that will adhere the glass to the vinyl frame.  Once that is completed it is matched up to the proper IGU that matches the job numbers. Setting blocks and an exterior glazing bead are applied for cosmetic and water run-off purposes.  During final assembly the upper and lower sashes will then meet up with the vinyl frame.  The units will be cleaned, labeled and assembled. Finally, the windows are wrapped and sent off to shipping!  Windows with certain options and upgrades are fully boxed for added protection.  Windows are sorted by routes and sent off to their designated distributor. 


There is a lot more that is involved in making windows, this is only a quick glimpse. Some Assembly Required featured Viwinco Windows in an episode. If you are interested in a tour please check in with your local distributor.

Go to Where to Buy for Distributors near you!