McDermott Welding is located in Kersey, Pennsylvania just south of St. Marys.  We service the Elk County and surrounding areas. At McDermott Welding, we specialize in custom welding and fabrication exactly to the customers specifications. McDermott Welding products are manufactured in Carbon Steel, Aluminum, and Stainless Steel.  With 61 years of combined experience we strive to provide the highest quality of work possible and always to your satisfaction.  McDermott Welding specializes in on and off-site jobs.  McDermott Welding also has a wide variety of steel available for purchase.  Our materials come in Aluminum or Stainless Steel and can be cut to your specific size to fit your needs.  McDermott Welding is a certified Waterjet Shop specializing in Cutting prototype and production parts we offer quick turnaround time for high quality cut parts.  We can cut virtually any material up to 6 inches thick.