Home Contact Information Morrow & Holman Plumbing Inc. Official Website for Morrow and Holman Plumbing, South Pasadena Heating and Air Conditioning and Roy's Plumbing Service 835 El Centro Street, South Pasadena, CA 91030 CA License 321793 Morrow and Holman Plumbing Inc. Serving the Plumbing, Heating, Cooling and Electrical needs of South Pasadena, San Marino and surrounding communities. Please Call for Service: Morrow and Holman Plumbing 626-799-3115 A website created by GoDaddy’s