Flat owners are responsible for the proper maintenance of air-conditioners. It is important that regular checks are carried out to ensure that the air-conditioner brackets are securely mounted or bolted to the bricks or concrete wall, as the condition of the air-conditioner may deteriorate due to corrosion or wear and tear over time.


As a flat owner, you are advised to regularly check and maintain your air-conditioners to ensure they are properly secured and are working in optimal condition. Below are some illustrations for your better understanding.

The stainless steel brackets should not be mounted on the timber frame but on the bricks or on the concrete walls. It should be securely mounted to the bricks or on the concrete walls	Brackets mounted on timber frame	Correct method of mounting the stainless steel bracket
The air-conditioner bracket / condensing unit should not be corroded or rusty	Corroded and rusty parts	Well maintained air-conditioner
Ensure proper insulation of air-conditioner condensing unit	No proper insulation	Well-insulated refrigerent pipings and joints
Ensure there is no leaking of condensation water All piping for the air-conditioner condensing unit must run internally and the condensation water should properly discharge into a nearby internal floor trap	Condensate piping not running internally	Condensation water is properly discharged internally

This video illustrates the proper steps of air-conditioner installation and also a guide on air-conditioner maintenance.



Some of the maintenance tips are:

• Service your air-conditioner regularly to achieve optimized performance
• Clean the air filters regularly to prevent reduction of air flow
• Check with the air-con serviceman if there is a need to replace corroded/rusted air-conditioner unit

Regular maintenance of the air-conditioner and the supporting frame helps prevent the risk of it getting dislodged thereby ensuring public safety.




If you need help to replace/install your air-conditioner, you may refer to the list of Trained Air-conditioner Installers. You can also view the guidelines and approved installation methods for more information


Under the Building Control Act, improper installation of air-conditioner units carries a maximum fine of up to S$5,000 or a jail-term of up to 6 months or both. Flat owners can also be penalised under the Building Maintenance and Strata Management Act if an air-conditioner falls because of improper maintenance.

S/N	Description	Unit	Indicative Charges (excluding GST)
1.	Engagement of a BCA trained air-con installer (including all necessary tools and transport) and check the existing external air-con bracket and its anchoring system to ensure full compliance with the correct method of installation specified in the prevailing HDB's guidelines.	Per set of air-con bracket and anchoring system	$50
2	Extra Over item 1 for the checking of one additional set of existing external air-con bracket and its anchoring system to ensure full compliance with the correct method of installation specified in the prevailing HDB's guidelines.	Per set of air-con bracket and anchoring system	$20
3a)	Supply and fix in replacement external air-con stainless steel bracket, stainless steel plate, anchoring system, etc including taking down of existing air-con unit, re-fixing in position, making good work disturbed and transportation cost all in accordance to the correct method of installation specified in the prevailing HDB's guidelines as shown in Drawing A1.	Per set of air-con bracket and anchoring system	$320
3b)	Ditto but in accordance to Drawing A2.	Ditto	$320
3c)	Ditto but in accordance to Drawing A3 .	Ditto	$345
3d)	Ditto but in accordance to Drawing B1.	Ditto	$310
3e)	Ditto but in accordance to Drawing B2.	Ditto	$310
3f)	Ditto but in accordance to Drawing C.	Ditto	$310
3g)	Ditto but in accordance to Drawing D.	Ditto	$310
3h)	Ditto but in accordance to Drawing E1.	Ditto	$310
3i)	Ditto but in accordance to Drawing E2.	Ditto	$310
3j)	Ditto but in accordance to Drawing F.	Ditto	$310
3k)	Ditto but in accordance to Drawing G1.	Ditto	$370
3l)	Ditto but in accordance to Drawing G2.	Ditto	$370
3m)	Ditto but in accordance to Drawing H.	Ditto	$370

a.	The charges stated serve as a guide that the contractors may charge. It is not a guarantee of the quality of work. Flat owners are advised to make necessary comparisons where possible.
b.	Flat owners are advised to negotiate the price and extent of work with the contractors on a private basis. HDB is not privy to this private engagement.
c.	The rates and transportation charge listed here are subject to change without prior notice.

Last Updated on 01 Feb 2010

• List of Air-Conditioner Installers