Professional Contractor Support Pella® is dedicated to providing professional contractors with the right windows and doors for almost any project. Find out more about the benefits of working with Pella by visiting our Calgary Showroom. Dedicated Representatives. Pella’s dedicated experts will assist you with estimates, on-site project management, walk-throughs and service after the sale. We will partner with you find the best products for your clients’ needs. Built To Order. All Pella products are made to order, and our delivery truck will arrive when you need it. Our windows and doors are packaged for protection and simple handling to make the installation go smoothly. Full Range of Products. As a Pella partner, you’ll have access to our full range of beautifully 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 enhance your affiliation with Pella. Learn more about how you can participate in Calgary Pella showroom's services to support professional contractors in your community.