Recently moved to our new home and currently have a fence (heigh 2m) but we have neighbours (child care centre) that can see straight through into our backyard and kitchen. The extra heigh required for complete privacy measures an extra 150 cm (from top of existing fence) to stairs going down to backyard. Location is Sydney.

Looking for ideas or recommendations (e.g bamboo fence) on how to make this better for privacy. Also who is the best professional to do the job, a landscape designer or fence contractor?