Contact Us Call us at (704) 467-8441 anytime. We’re open 24/7 including holidays. Whether you need to schedule a service visit with a technician, or request a free estimate from a sales rep, Trident Mechanical Systems is happy to serve you. Do You Have A Question? If you would like to leave a suggestion, provide feedback, or ask a question, please fill out this form. Name* Email* Phone*SubjectComments*PhoneThis field is for validation purposes and should be left unchanged. This iframe contains the logic required to handle Ajax powered Gravity Forms.