Get Connected with the Most Reliable Engineers in Westerville, OH

McMullen Engineering Co., Inc. is a consulting engineering firm that provides exceptional and professional engineering services to the building industry, including electrical and mechanical expertise. The firm was established in 1979 by brothers Carl and Paul McMullen, who strive to deliver excellence in engineering with a friendly personal touch. Their services include complete design of plumbing, fire protection, heating, ventilating, air conditioning, and electrical systems for commercial, institutional, educational, residential, and industrial buildings.