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Residential

Air-Conditioners

Home owners are responsible for the proper installation, safety, and stability of the air-conditioners (casement/ window unit/ split type) in their flat.

If you would like to replace or install an air-conditioner in your flat, you must engage air conditioner installers who have been trained by the Building and Construction Authority. Air-conditioner window units and split-type condensing units must be installed at approved locations, using approved installation methods.

Conventional flats

The following guidelines must be followed for air-conditioner installation in conventional flats.

Conventional flats

Type of Flat Location of Air-Conditioner Position of Air-Conditioner Installation Method
Split-unit Air-Conditioning Unit Window Unit
Flats with air-conditioner ledge On concrete air-conditioner ledge

Drawing K
(PDF, 31KB)

N/A
Flats without air-conditioner ledge Master bedroom Within air-conditioner opening

 

Drawings
A1 (PDF, 40KB),
A2 (PDF, 46KB),
A3 (PDF, 56KB),
G1 (PDF, 39KB),
G2 (PDF, 49KB)

Drawings B1 (PDF, 38KB),
B2 (PDF, 38KB)
At parapet below window nearest to bedroom door (when existing air conditioner opening is not suitable for the installation of the air-conditioner condensing unit) Drawing C
(PDF, 31KB)
N/A
  Air-conditioner cabinet Drawings
J1 (PDF, 92KB)
J3 (PDF, 87KB)
Drawing J2
(PDF, 82KB)
Other bedrooms On window sill nearest to bedroom door (originally provided by us) N/A Drawing D
(PDF, 32KB)
Study-cum-bedroom (where sliding doors are provided) On extreme left of window sill when viewed from bedroom door (originally provided by us) N/A Drawing  D
(PDF, 32KB)
Service balcony On the floor of service balcony or on the walls of the unit within service balcony Drawing C
(PDF, 31KB)
N/A
Kitchen (applicable for 1- and 2-       room flats only) At brick or reinforced concrete parapet wall below window only Drawing C
(PDF, 31KB)
N/A
 

Flats with precast facade

The following installation guidelines must be followed for flats that have their external surface covered with tiles or other finishes.

Type of Flats Location of Air-Conditioner Position of Air-Conditioner Installation Method
Split-unit Air-Conditioning Unit Window Unit
Flats with air-conditioner ledge On concrete air-conditioner ledge Drawing K
(PDF, 31KB)
N/A
Flats without air-conditioner ledge Master bedroom Within air-conditioner opening Drawings
A1 (PDF, 40KB),
A2 (PDF, 46KB),
A3 (PDF, 56KB),
G1 (PDF, 39KB),
G2 (PDF, 49KB)

Drawings B1 (PDF, 38KB),
B2 (PDF, 38KB)

On window sill nearest to bedroom door (when existing air-conditioner opening is not suitable for installation of air-conditioner condensing unit) Drawing H
(PDF, 36KB)
Drawing  F 
(PDF, 35KB)
At parapet below window nearest to bedroom door (when existing air-conditioner opening is not suitable for installation of air-conditioner condensing unit) Drawings
C (PDF, 31KB)
E1 (PDF, 38KB)
E2 (PDF, 33KB)
N/A
Air-conditioner cabinet Drawings
J1 (PDF, 92KB)
J3 (PDF, 87KB)
Drawing  J2 (PDF, 82KB)
Other bedrooms On window sill nearest to bedroom door (originally provided by us) N/A Drawing 
D (PDF, 32KB)
Study-cum-bedroom (where sliding doors are provided) On extreme left of window sill when viewed from bedroom door (originally provided by us) N/A Drawing  D (PDF, 32KB)
Service balcony On the floor of service balcony or on walls of the unit within service balcony Drawing 
C (PDF, 31KB)
N/A
Kitchen (applicable for 1- and 2-       room flats only) At brick or reinforced concrete parapet wall below window only Drawing 
C (PDF, 31KB)
N/A

Check with the HDB Branch managing your block if you need to install an additional compressor unit, or enquire about the location or method of installation for your air-conditioner.

Indicative work charges

Please check here for indicative prices of the checking and replacement of air-conditioner brackets and anchoring systems.

  • Charges stated are only a guide of what contractors might charge and are not a guarantee of the quality of work. You are advised to make the necessary comparisons where possible
  • The extent of work and negotiation of price is strictly on a private basis between you and the contractor. HDB is not privy to this private engagement
  • Rates are subject to change without prior notice
S/N Description Indicative Unit Charge Per Set of Air-conditioner Bracket and Anchoring System (Excluding GST)
1 Supply BCA trained air-conditioner installer (including all necessary tools and transport) and check the existing external air-conditioner bracket and its anchoring system to ensure full compliance with the correct method of installation specified in prevailing HDB guidelines. $58
2 (In addition to S/N 1) Checking of 1 additional set of existing external air-conditioner bracket and its anchoring system to ensure full compliance with the correct method of installation specified in prevailing HDB guidelines. $37
3a) Supply and fix in replacement external air-conditioner stainless steel bracket, stainless steel plate, anchoring system, etc including taking down of existing air-conditioner unit, re-fixing in position, making good work disturbed, and transportation cost. Above is all in accordance to the correct method of installation specified in prevailing HDB guidelines as shown in Drawing A1 (PDF, 40KB). $330
3b) As per 3a but in accordance to Drawing A2 (PDF, 46KB) $333
3c) As per 3a but in accordance to Drawing A3 (PDF, 56KB) $333
3d) As per 3a but in accordance to  Drawing B1 (PDF, 38KB) $330
3e) As per 3a but in accordance to  Drawing B2 (PDF, 38KB) $340
3f) As per 3a but in accordance to Drawing C (PDF, 31KB) $347
3g) As per 3a but in accordance to Drawing D (PDF, 32KB) $347
3h) As per 3a but in accordance to  Drawing E1 (PDF, 38KB) $347
3i) As per 3a but in accordance to Drawing E2 (PDF, 33KB) $347
3j) As per 3a but in accordance to Drawing F (PDF, 35KB) $373
3k) As per 3a but in accordance to Drawing G1 (PDF, 39KB) $383
3l) As per 3a but in accordance to Drawing G2 (PDF, 49KB) $383
3m) As per 3a but in accordance to Drawing H (PDF, 36KB) $383