I want to extend my wall unit space to fit my new sound bar.

Extend soundbar recess in existing media wall I need someone to extend the soundbar recess in my living room media wall to fit a larger soundbar. The opening needs extending horizontally by approximately 2 inches on each side (4 inches in total). The height and depth will stay the same. The wall is plasterboard with timber behind it, rather than concrete. Please include making good the edges, any necessary plastering, sanding and painting to match the existing finish neatly. Please provide your quote and availability.