It depends on the severity of the disability and the extent of the retrofit. Generally, for simple modifications such as installing a handrail or widening a door frame, it will take about two to four weeks. For more extensive modifications, such as converting a bathroom or bedroom into a wheelchair-accessible space, it can take up to several months. In either case, it is always best to consult with an experienced contractor who can help you plan and execute the modifications in a timely and efficient manner.

It can take anywhere from a few weeks to a few months, depending on the complexity of the work that needs to be done. Many modifications are fairly simple and can be done in a day or two, but more complex retrofits may take longer. It's important to remember that safety is always the top priority, so it's better to take your time and do the job right than to rush and risk someone's safety. When hiring a contractor for disability retrofits, make sure you ask about their experience with this type of work and how they plan to ensure safety throughout the process.