Super Energy Saving Windows & Patio Doors
At A Super Affordable Price!
Manufactured In Medford, New Jersey, USA!



"If you find a window and service as good as ours at a better price...Buy it!"

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Why Purchase Windows From Wholesalers, Retailers and Franchisees... "MiddleMen," At Huge Markups?


Our Windows Are

Custom Made to Your  Fit Your Specifications 

Now With FlexScreen™!

At Super Affordable Prices **

Buy Local!!

 Deal Directly With Jantek's  Medford NJ Factory!

Our Medford New Jersey Employees

Design, Manufacture AND INSTALL!

All of Jantek's window and patio door models are Certified by the National Fenestration Rating Council for the US EPA's Energy Star® program in the North Central Climate Zone. Our windows proprietary triple pane Energy Miser II Glass System™ certified at an industry leading R5 insulation value is Certified Energy Star® in all 50 States

**Direct Factory Purchase Pricing is offered on Factory Direct orders only and not available through Jantek Dealers. Installation by Jantek is available in the following New Jersey counties; Mercer, Monmouth, Burlington, Ocean, Camden (Not the city of Camden), Gloucester and in the city of Philadelphia.  Products may be purchased without Jantek's installation service, only for customer arranged pickup at The Jantek Factory & Showroom located in Medford New Jersey.