At JW Marriott Washington DC, guests have access to a 24-hour gym, free WiFi in public areas, and conference space. Valet parking is available for USD 63 per night, and there's also limo/town car service. Front-desk staff can answer questions 24/7, and assist with concierge services, securing valuables, and luggage storage. Additional amenities include a business center, express check-in, and express check-out.