At E-Calcs Plus, our goal is to always provide you with fast and friendly service. We utilize the latest technology, expertise, and training to provide top quality service and fast turnaround time on your required energy calculations. We provide our solutions within 1 to 3 days for a full permit set of energy and load calculations. We will also collaborate with your designer, builder, window provider, and insulation provider to determine the optimum design parameters. read full review »