Preferred Engineering Products was founded in 1988 to fill a void in the specialized window hardware market. Through extensive research and constant customer consultation, Preferred Engineering has developed revolutionary window systems that answer both the window manufacturer's need for profitability and the end-user's desire for ease of use, making us the preferred choice of manufacturers, developers and contractors across North America.
Preferred Engineering's next-generation fenestration hardware systems offer an alternative to traditional window operating products. They are designed for functionality, aesthetics and performance, while being easy to clean and easy to use, with maximum ventilation and visibility.

Today, Preferred Engineering supplies innovative window hardware systems to meet the needs of any customer - Tilt'N'Slide, Parallex, Slide'N'Hide and HI-FLO Weepers.

Our business depends on your success. We'll work with you to build your business and increase your profitability.

At Preferred Engineering, we're committed to providing innovative solutions to your window hardware problems.