Infrastructure in Flower Mound is modern and continuously upgraded to keep pace with the SMARTGrowth plan. Water and wastewater services are managed by the town, sourcing water primarily from the Upper Trinity Regional Water District.
Electricity is largely deregulated in Texas, with transmission maintained by Oncor, though CoServ Electric (an electric cooperative) serves a significant portion of the town's residents. High-speed broadband and fiber-optic internet are widely available through major national providers like Frontier and Spectrum, and cell coverage is dense and highly reliable.