Professional Contractor Support Pella® is dedicated to providing professional contractors with the right windows and doors for virtually any project. Learn more about the benefits of working with Pella by visiting our Terre Haute Showroom. Dedicated Representatives. Pella’s dedicated sales professionals will offer assistance on estimates, on-site project management, walk-throughs and service after the sale. We will partner with you find the best fit for your clients’ needs. Built To Order. All Pella products are made to order, and our delivery truck will arrive at the exact time you need it. Our windows are packaged for protection and easy handling to make the installation go smoothly. Full Range of Products. As a Pella partner, you’ll be granted access to our wide range of exquisitely crafted products to meet and fulfill all of your clients’ window and door needs. Pella Certified Contractor. The Pella Certified Contractor program offers training and support programs to strengthen your partnership with Pella. Learn more about how you can participate in Terre Haute Pella showroom's services to support professional contractors in your community.