Contact Us Contact Information Visit Our Company atAddress: 715 N Houston Ave, Humble, TX 77338 Have Questions? Call us281-852-4131 HoursOur customer service team is available to help you Monday through Friday.Monday–Friday: 8:00 am – 5:00 pm Contact UsE-mail: info@marshallengineeringco.com Contact Us If you’d like a free consultation, please start by completing the form: Enter Name * Enter Phone * Enter E-mail * Type Service * Your Message *