The Mainstay Inn 184 Bridge St, Phoenixville, PA19460 The Mainstay Inn is located on Bridge Street in downtown Phoenixville. This nice hotel is family owned and operated, and…More features some very welcoming accomodations. Rooms feature Queen-size or double beds, wireless Internet, continental breakfast, refrigerator and microwave. Its jacuzzi rooms also feature a two-person jacuzzi. The Mainstay Inn is able accommodate meetings and weddings, too.