The Difference Between Thiel's and the Competition? Quality. ?Provide customers with quality products and services and success will follow.? Thiel's has lived by this principle since our first day of business and has continued on to this day. We know that no business strategies or advertising campaigns can ever trump quality, so ever since 1966, that has been Thiel's focus. From the materials we buy in bulk, to the products our manufacturing plant produces, to the installation of your purchase, every step of the way, we live by this principle. All of our products are incredibly strong and durable, water resistant and impact resistant. But to make our customers even more secure with their decision of choosing Thiel's, we also offer a lifetime guarantee for all of our home improvement products, including on our cabinet doors and drawers, bathtubs, windows and entry doors. Thousands of customers choose Thiel's every year because of our focus on quality every step of the way, from our products to our guarantee. We look forward to showing you what quality looks like at Thiel's.