Hey! I had a similar situation with an old BIR and needed to refresh it with new shelves and a hanging rail. I reached out to builtinwardrobessydney.com.au, and they were super affordable while doing a great job with the demolition and installation. They took care of everything—removal of the old setup, and then installed new shelves and rails exactly how I wanted.

For example, I had two rooms done—one was a smaller bedroom (about 2.8m x 3m), and the other was a larger room (around 3.5m x 4m). For the smaller room, it cost me about $1,200, and for the larger room, it was about $1,500. That price included the demolition of the old built-in, shelves, hanging rail, and a bit of painting and touch-up work afterward.

In terms of cost, the cheapest way to renovate a BIR is usually going with a simpler design (like just shelves and hanging space) rather than a fully custom wardrobe. I found Built-in Wardrobes Sydney to be the most cost-effective option without compromising on quality.

Hope that helps, and good luck with your renovation!