Virtual Estimates Online - Connextec - Charlotte, NC STEP ONE. BOOK A DATE & TIME ONLINE. Call us at 704-564-9581 or click on the button below to select a date and time of your free Virtual Estimate. STEP TWO. OUR OFFICE WILL … STEP ONE. BOOK A DATE & TIME ONLINE. Call us at 704-564-9581 or click on the button below to select a date and time of your free Virtual Estimate. STEP TWO. OUR OFFICE WILL …