The cost of aircon installation in Singapore is around SG$1,050–SG$1,700 for system 1 split aircons. The cost is dependent on many factors such as the brand, aircon type, accessories required for the installation, piping requirements, etc. Air conditioning is a necessity in Singapore’s hot and humid weather. Whether it’s for your HDB flat, condo, office, or commercial space, choosing the right system and understanding the cost is important. Let’s break down the installation cost of the common types of aircon systems in Singapore in simple terms.
Split Type Aircon Installation Cost In Singapore
Split aircon systems are popular in Singapore homes. Installing split systems is cost-effective and easy to maintain. Each indoor unit cools a specific room and is connected to an outdoor compressor. System 1 is for a single room, while System 5 can cover up to five rooms.
Cost breakdown:
| Item | System 1 | System 2 | System 3 | System 4 | System 5 |
| Unit cost | SG$600–1,000 | SG$1,200–1,600 | SG$1,800–2,400 | SG$2,800–3,800 | SG$4,000–5,000 |
| Labour | SG$200–300 | SG$300–400 | SG$400–500 | SG$600–800 | SG$800–1,000 |
| Piping & drainage | SG$150–250 | SG$250–350 | SG$300–450 | SG$450–600 | SG$500–700 |
| Electrical & circuit breaker | SG$100–150 | SG$150–200 | SG$200–250 | SG$250–300 | SG$300–400 |
| Total Cost | SG$1,050–1,700 | SG$1,900–2,550 | SG$2,700–3,600 | SG$4,100–5,500 | SG$5,600–7,100 |
Ceiling Cassette Aircon Installation Cost
Ceiling cassette units are mounted on the ceiling and blow air in four directions. They’re great for larger spaces like offices or open-plan homes. The indoor unit is installed in the ceiling for a sleek look. Installation of ceiling cassette aircon requires false ceiling work and more effort.
Cost breakdown:
| Item | Cost Range |
| Unit cost | SG$1,300–2,000 |
| Labour | SG$500–700 |
| Piping & drainage | SG$300–500 |
| Electrical & circuit breaker | SG$150–250 |
| False ceiling modification | SG$200–400 |
| Total Cost | SG$2,450–3,850 |
Central or Ducted System Installation Cost
Ducted systems provide uniform cooling across rooms via concealed air ducts. They’re ideal for bigger homes or premium renovations. The system and the air ducts stays hidden above false ceilings and is very quiet. However, installation of ducted system is complex and typically costs more than split or cassette systems.
Cost breakdown:
| System Type | System Price (SGD) | Ducting & Materials (SGD) | Labor & Service (SGD) | Total Estimated Cost (SGD) |
| Single Zone | $5,000 – $8,000 | $2,000 – $4,000 | $3,000 – $5,000 | $10,000 – $17,000 |
| 1-2 Zones | $7,000 – $12,000 | $3,000 – $6,000 | $4,000 – $6,000 | $14,000 – $24,000 |
| 3-4 Zones | $10,000 – $15,000 | $4,500 – $8,000 | $5,000 – $7,000 | $19,500 – $30,000 |
| 5+ Zones | $12,000 – $18,000 | $6,000 – $10,000 | $6,000 – $8,000 | $24,000 – $36,000+ |
Commercial VRF System Installation Cost
VRF (Variable Refrigerant Flow) systems are used in larger commercial buildings. These systems allow multiple indoor units to operate independently. VRF is energy-efficient and flexible but requires experienced installers and more advanced control systems. It’s a popular choice for offices, malls, and hotels.
Cost breakdown:
| Item | Cost Range |
| Unit (indoor + outdoor) | SG$10,000–30,000 |
| Labour | SG$5,000–10,000 |
| Refrigerant piping | SG$3,000–8,000 |
| Drainage system | SG$1,000–3,000 |
| Electrical setup | SG$2,000–6,000 |
| Control system (BMS, zoning) | SG$1,000–3,000 |
| Total Cost | SG$22,000–60,000 |
Commercial Chilled Water System Installation Cost
Chilled water systems are used in large-scale facilities like hospitals and data centres. A central chiller cools water which is then circulated throughout the building. These systems are highly efficient for massive spaces but have very high upfront installation costs.
Cost breakdown:
| Item | Cost Range |
| Chiller unit | SG$40,000–100,000 |
| AHUs / FCUs | SG$5,000–15,000 |
| Water piping & insulation | SG$10,000–25,000 |
| Pumps and control panels | SG$8,000–20,000 |
| Electrical and automation | SG$5,000–15,000 |
| Labour and installation | SG$10,000–30,000 |
| Total Cost | SG$78,000–205,000 |
Factors That Affect Aircon Installation Cost in Singapore
There are several factors that may directly affect the cost of AC installation. Below are the factors:
Type of Aircon System
The cost varies significantly depending on the type of aircon to be installed. A simple split system is way cheaper than ducted, cassette, or commercial systems like VRF or chilled water.
Number of Units Installed
The more indoor units (System 1–5), the higher the total cost. The cost of labour, piping, and electrical work will also increase as the capacity of the aircon increases.
Brand and Model
Premium brands like Mitsubishi Electric, Daikin, or Panasonic often cost more than budget models such as Midea. Energy efficiency and smart features can also affect the price.
Complexity of Installation
Installing units in high-rise buildings, confined spaces, or homes without false ceilings can increase labour costs. Installing ducted systems or cassette units require installing false ceiling and hence, they cost more.
Piping and Drainage Requirements
Longer copper piping runs, complex drainage routing, or concealed installations will raise material and labour costs.
Electrical Work
If your existing electrical system can’t support the aircon, you may need additional wiring, circuit breakers, or even an upgraded power box. These will adds to the cost.
HDB vs Condo vs Landed Property
Some condos have strict rules on external compressor placement. It can lead to higher costs. HDB flats usually follow the HDB regulations for aircon and specific layout, making installation easier and cheaper.
Contractor’s Experience
Highly rated or BCA-certified contractors may charge more but offer better quality work, warranty, and safety. Cheaper options may not include proper testing or long-term reliability.
FAQ
What is included in a standard aircon installation package?
Standard aircon installation in Singapore usually includes the unit, basic piping, drainage, trunking, labour, and simple electrical work.
Do I need a permit to install aircon in an HDB flat?
Yes, you need aircon installation permit for HDB and must follow HDB guidelines, especially for outdoor compressors.
Can I reuse existing piping for a new aircon?
Yes, but it’s not always recommended. Old or damaged pipes may reduce performance or cause leaks.
How long does aircon installation take?
For split systems, usually 4 to 8 hours. More complex setups like ducted or VRF systems take longer.
Are electrical upgrades required for new aircons?
Sometimes it is required for multiple units or powerful systems. An electrician can install circuit breakers if needed.
Conclusion
Aircon installation costs in Singapore can vary based on the type of system, property layout, and additional work required. Whether you choose a basic split system for your HDB or a complex ducted or VRF system for commercial use, it’s important to understand what you’re paying for — from unit price to labour and electrical work. Always go with a trusted installer who provides clear pricing and warranty. A proper installation not only ensures comfort but also extends the life of your aircon system.
