When considering relocating your aircon condenser units outside your balcony to accommodate full-height windows, it's crucial to understand all aspects to avoid surprises. First, getting HDB approval is mandatory before any relocation work can begin. This ensures compliance with safety and building regulations. While the installation process may cause some dust and debris due to drilling and mounting work, proper planning with professional installers can minimize disruptions. It's also important to plan according to the number and weight of your condenser units. HDB imposes strict limits on the wall load capacity outside balconies, so combining the weight of the condensers and brackets must stay within these limits to avoid structural risks. The timeline for the entire relocation typically ranges from half a day to a full day, depending on how many aircon units you have. Coordinating with your installer to schedule the job can help make the process seamless. From my personal experience living in Singapore, working with a trusted aircon specialist who clearly communicates the approval process and technical details will ease your concerns. Always prioritize professional advice and adhere to HDB requirements to prevent issues later on. By considering these factors, you can enjoy the benefits of improved balcony aesthetics with full-height windows without compromising your aircon system’s functionality or your home’s safety.