At JW Marriott Washington DC, guests have access to a 24-hour gym, free WiFi in public areas, and conference space. Parking is available for USD 55 per night (USD 77 per night for valet parking), and there's also limo/town car service. Front-desk staff can answer questions 24/7, and assist with luggage storage, tours or tickets, and dry cleaning/laundry. Additional amenities include a business center, express check-in, and express check-out.