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  • Westech's Vision
    Building Loyalty
    Through Customer
    Satisfaction
  • Building Expectations
    through Innovative
    Engineering
    Building Dependability by Comprehensive Oversight
  • Building Stability
    Through International
    Diversification

Building a Reputation for Consistent Excellence

Westech ULC began extruding custom shapes for the window and door industry in 1979 as Engineered Profiles Ltd. In 1983, the first fully welded casement window system was designed and offered to window fabricators. As the market conditions dictated new systems were added to meet the growing demands for maintenance-free, energy-efficient, vinyl windows.

The window division now operates under the Westech Building Products, a Westlake Chemical company.

Professionals

Professionals

We invite our customers, dealers, installers and architects to immerse themselves in the information provided below. We have made available all of our marketing materials, individual product warranties, installation instructions as well as code reports and certified designs. If you are unable to locate what you need please contact sales@westechbp.com.

Facilities

Facilities

Building Stability Through International Diversification

Discover About us

Westech's History

Westech ULC began extruding custom shapes for the window and door industry in 1979 as Engineered Profiles Ltd. In 1983, the first fully welded casement window system was designed and offered to window fabricators. As the market conditions dictated new systems were added to meet the growing demands for maintenance-free, energy-efficient, vinyl windows.

 The window division now operates under the Westech Building Products, a Westlake Chemical company.

Products Offered
Our Faqs

Frequently Asked Questions

Poly vinyl chloride refers to the resin used to produce vinyl, or can refer to the actual finished vinyl product after additives are included. PVC is also used interchangeably with the word vinyl. uPVC is the term used in many countries to refer to ultraviolet (UV)-protected PVC. All PVC, therefore, used to produce exterior vinyl products by reputable manufacturers is also uPVC.

According to the Merriam-Webster Dictionary, resin is “any of a large class of synthetic products that have some of the physical properties of natural resins but are different chemically and are used chiefly in plastics.” There are several grades of PVC resin, from high-quality, window-grade resin to a lower-quality, commercial-grade resin. The poly vinyl chloride resin used in the production of Westech’s vinyl products is formulated to meet the industry’s highest standards.

Also known as titanium dioxide, it is the most commonly used compound used to provide UV protection. There are at least two grades of TiO2: uncoated (or chalking) grade and coated (or durable, non-chalking) grade. Coated TiO2 particles chalk at a much slower rate, providing a more lustrous finish over the life of the product it protects. Titanium dioxide is not noxious. In fact, it is used as a preservative and is also used to color baked goods, such as the popular white-powdered donuts!

Raw material, Additives Crude oil, natural gas and salt are the basic raw materials used in the production of poly vinyl chloride (PVC) resin. Westech’s vinyl compounds are formulated from premium grade raw materials and additives, including UV inhibitors, impact modifiers, stabilizers and toners. Westech’s proprietary formulations are built upon Westlake’s years of chemical and technical leadership.

Mathematical calculations used in determining how well a product (such as fencing) will withstand a particular wind velocity (or windload) before failure may occur.

For our full FAQ listing, please Click Here.