This depends on the specific installation method used and the condition of the existing plaster around the window frame.
If a retrofit installation method is used, where the new window is installed inside the existing frame, then there should be no need to replaster, as the existing frame and plaster remain intact.
However, if a full-frame replacement method is used, where the entire frame is removed and replaced, then it may be necessary to replaster around the window frame to ensure a proper seal and a finished appearance. In some cases, the condition of the existing plaster may also be damaged during the removal process, requiring repairs or replacement.
When you choose to replace your windows through Windows & Doors UK, one of our professional window installer team members will determine the best course of action for your particular situation. They can provide guidance on whether replastering is necessary and provide an estimate for any additional work that may be required.