Professional Contractor Support Pella® is committed to providing professional contractors with the right windows and doors for virtually any project. Find out more about the perks of working with Pella by visiting our Westerly Showroom. Dedicated Representatives. Pella’s dedicated sales professionals will assist you with estimates, on-site project management, walk-throughs and service after the sale. We will partner with you find the best solution for your clients’ projects. Built To Order. 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 simple handling to make the installation a breeze. Full Range of Products. As a Pella partner, you’ll receive access to our entire 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 affiliation with Pella. Learn more about how you can participate in Westerly Pella showroom's services to support professional contractors in your area.