McLean benefits from the robust infrastructure network managed by Fairfax County. Electricity is dependably supplied by Dominion Energy, while natural gas services are provided by Washington Gas. Water and sewer services are managed by Fairfax Water, drawing from the nearby Potomac River.
The community enjoys access to high-speed broadband and fiber-optic internet, predominantly serviced by Verizon Fios and Cox Communications. Cellular coverage is generally excellent across all major carriers, though some of the deeply wooded areas along the Potomac palisades can occasionally experience spotty reception.