This really depends on the scope of the project. It’s difficult to determine the time it’ll take without the help of an expert who will be able to give you an accurate estimate. On average, a small bathroom remodel may take around just over a month to complete, including planning, fitting, and tying up loose ends. A larger bathroom could take anywhere from six weeks to three months to complete. You also need to account for any unexpected delays or hiccups along the way.