You are required to engage a Building and Construction Authority (BCA) trained air-conditioner installer if the air-conditioner is to be mounted on the exterior of your flat or if any part of the air-conditioner projects outwards from your flat.
If your flat is provided with a 30-amp main switch and you wish to install an air-conditioner using a new power point, you must submit an application for the air-conditioner permit, along with SP Services Ltd (SPSL) Form CS/5, to the HDB Branch Office managing your flat for approval and endorsement.
Your BCA trained air-conditioner installer or their representative can submit the application on your behalf. Alternatively, you can submit your application by post or through the deposit box at your HDB Branch Office.
Upon completion of the work, you must apply to the SPSL for testing through your licensed electrical contractor.
For flats provided with a 40-amp main switch and flats upgraded under the Main Upgrading Programme (MUP), there is no control on the running current of the air-conditioner. Hence, no air-conditioner permit is required.
If your flat is provided with a 30-amp main switch and you wish to install an air-conditioner using a new power point, you must submit an application for the air-conditioner permit, along with SP Services Ltd (SPSL) Form CS/5, to the HDB Branch Office managing your flat for approval and endorsement.
Your BCA trained air-conditioner installer or their representative can submit the application on your behalf. Alternatively, you can submit your application by post or through the deposit box at your HDB Branch Office.
Upon completion of the work, you must apply to the SPSL for testing through your licensed electrical contractor.
For flats provided with a 40-amp main switch and flats upgraded under the Main Upgrading Programme (MUP), there is no control on the running current of the air-conditioner. Hence, no air-conditioner permit is required.
This answer is based on HDB and agency guidelines, which can change. Check the latest rules on the HDB website, or ask us and we will check them for your flat before work starts.
Planning a renovation? We handle permits and approvals for you.
Get a free quoteMore questions on aircon and electrical
- What should I know before installing air-conditioning in my HDB flat?
- What type of air-conditioner can I install?
- What documents do I have to furnish when applying for an air-conditioner permit?
- Can I install any number of air-conditioners in blocks with 40 amperes supply?
- How do I tell whether my block is provided with a 40-amp supply/upgraded under the Main Upgrading Programme (MUP) or 30-amp supply?
- Who is responsible for the air-conditioner?
- Who is responsible for unauthorized electrical extensions or appliances installed in the flat?
Related guide: Bedroom design guide (aircon and wardrobe planning)
