The Excelsior Hotel Gallia offers 224 elegantly and comfortably appointed guestrooms and 12 luxurious suites. All guestrooms, junior suites and suites are equipped with air conditioning, heating, satellite/cable television, alarm clock, international direct dial telephone, computer data port, minibar, safe and bathroom with shower over the bathtub, telephone and hairdryer.
- The Standard Rooms are equipped either with one king-size bed, one queen-size bed or twin size beds and they are located in the "Pirelli Wing" of the Excelsior Gallia. Some of these rooms offer view of the Piazza. The elegant bathrooms are tiled with Travertino marble. An extra bed is available.
- The Superior Rooms are equipped either with one king-size bed, one queen-size bed or two twin-size beds. These rooms are recently renovated and they are located in the "Pirelli Wing" or in the historical wing of the Excelsior Gallia. Some of these rooms offer a balcony or a bay window. The Superior rooms are decorated in a trendy design with distinctive furnishings, large mirrors and exclusive frescos and they are elegantly designed in a modern style. An extra bed is available.
- The Deluxe Rooms are equipped either with one king-size bed, one queen-size bed or two twin-size beds and they are located in the historical wing of the Excelsior Gallia. Mostly of these rooms overlooks Piazza Duca d'Aosta, the largest square in the city and some of these rooms offer balcony or a bay windows. The Deluxe rooms are decorated either in the Liberty style or in a traditional style with timeless and classical furniture. The elegant bathrooms offer coloured windows in Venetian style and some of the bathrooms are equipped with a separate toilet and shower.
- The Junior Suites are situated in the historical wing of the Excelsior Gallia. These corner suites consist of a spacious living area and a bedroom with bay window and the walls offer soft pastel colous. The elegant marble bathrooms are decorated in the Liberty style.
- The Executive Suites are located in the historical wing of the Excelsior Gallia and they offer view of the Piazza Duca d'Aosta. These suites are recently renovated and they are decorated with furniture in classical style and warm colours. These consist of a bedroom and a separate sitting area with sofa bed.
- The One-Bedroom Suites offer a balcony with view of the Piazza Duca d'Aosta and they are decorated either in the Liberty style or in traditional style. The suites consist of a separate bedroom, equipped either with two twin-size beds or one king-size bed and a living room. These suites are perfect for a private dinner or a small meeting for up to 8 persons. A connecting bedroom is available.
- The Gallia Suite is named after the founders of the hotel, the Gallia family. This unique suite is elegantly and luxuriously decorated with antique mirrors, exclusive ceiling decorations, original paintings and old-style furniture. This suite consists of a bedroom, a spacious living room and balcony with view of Piazza Duca d'Aosta. A connecting room in the same style is available.