How do i contact inframark infrastructure management services? To learn more about Inframark Infrastructure Management Services or to request service for your district or association, contact one of our local managers today. For general phone inquiries, please contact our Customer Care department Monday through Friday from 7:00 a.m. to 6:00 p. m., with the exception of holidays.What are inframarks hours of operation? Our payment window hours are Monday through Friday from 7.30 a.m. to 5:00 p.m. Our Zendesk live chat hours are Monday through Friday from 7:00 a.m. to 6:00 p.m., with the exception of holidays. Inframark Infrastructure Management Services 210 North University Drive Suite 702Who is inframark? Inframark is a leading national provider of outsourced operations and maintenance (“O&M”) services to water and wastewater treatment facilities for both municipal and industrial customers. The Company is one of four national operators in the water and wastewater O&M space and the only “pure-play” provider.What does inframark mean for new mountain? New Mountain identified Inframark as part of its multi-year deep-pe sector initiatives in sustainability and infrastructure & utility services, which include a specific focus on water services.