If you’re a HDB or condo owner, one of the first questions you’ll ask is: “How much does aircon installation cost in Singapore?” The honest answer is: it depends on your system size (System 1/2/3/4), installation route, and materials (piping, insulation, trunking, brackets, and electrical works).
This guide breaks down:
- Typical price ranges for HDB and condo
- What materials are usually needed
- What’s considered standard installation
- What to check before and after installation
- When to do servicing
- How to choose a good installer
- Aircon replacement cost
- Online vs direct dealer (which is better and why)
How much is aircon installation for HDB & condo in Singapore?
In general, HDB installation is often more straightforward because the layout is predictable and routing is usually shorter. For condo installation, pricing can be similar, but it may increase if there are management restrictions, longer pipe runs, or if you want a cleaner look with more concealed trunking. So when you compare quotations, don’t compare price only—compare what is included in the package (piping length, insulation, trunking, bracket, and electrical scope).
Typical all-in cost range (unit + installation)
These system price ranges are common market ranges of Singapore (actual depends on brand/model and site condition)
- System 1: around S$1,000+
- System 2: around S$2000 – S$2,800
- System 3: around S$3200 – S$4,400
- System 4: around S$3,600 – S$5,000+
Check Our Aircon Price with installation package
The above price range is for residential aircon installation not for commercial use.
Most homeowners in Singapore will pay for aircon installation in one of two ways, depending on where you buy the unit.
Option 1: Buy a “package” (aircon unit + installation together)
This is the most common method. You choose the aircon system (System 2/3/4), and the company gives you one total price that usually includes:
- the aircon units (indoor + outdoor)
- basic installation labour
- standard materials (piping, insulation, drainage pipe, trunking — within a certain allowance)
It’s simple because you deal with one company only, and everything is arranged together.
Option 2: Buy the aircon unit first, then pay for installation separately
Some people buy the aircon unit from a different place (for example, from a shop or supplier), then hire an installer to do the work. In this case, you’ll pay:
- aircon unit price (paid to the seller)
- installation labour fee (paid to the installer)
- materials cost (piping, insulation, trunking, brackets, electrical items)
This method can work, but you must be careful because the final cost may change based on:
- piping length needed
- trunking route complexity
- whether extra electrical works are required
Why HDB vs condo pricing can be different
Both can be similar if the routing is easy, but condo jobs can cost more when there are:
- stricter working hours / management rules
- longer pipe runs (more materials)
- harder access for outdoor unit location
- more concealed trunking requests
Things to know before aircon installation (HDB & condo checklist)
This section is important because it reduces problems later (leakage, noisy operation, poor cooling).
A. Confirm the right system size for your home
- Small 2-room: often System 2 is enough
- 3-room/4-room: System 3 is common
- Larger or need every room + living: System 4 is common
But don’t choose only based on the number of rooms—choose based on room size + usage.
B. Decide trunking style: exposed or concealed
- Exposed trunking: easiest, usually cheaper, easy to service later
- Concealed (false ceiling / hidden route): nicer look, but costs more and can be harder to troubleshoot later
C. Decide whether to reuse old piping
Reusing old piping may look cheaper, but if the piping is old, contaminated, or leaking, it can cause performance issues and future gas leaks.
D. Check outdoor unit location
Before confirming your quote:
- Where will the outdoor unit sit?
- Do you need brackets?
- Can the technician access safely?
E. Condo owners: check management rules
Some condos require:
- specific working hours
- protective sheets for lift/common areas
- booking for loading/unloading
Tell your installer early so the schedule is smooth.
How to choose the best aircon installer in Singapore
Before engaging an aircon company, check their quality first because installation is costly and difficult to redo. Don’t choose based on low price only, as poor workmanship can lead to water leaks, noisy operation, or weak cooling later. Take time to read their reviews and real customer feedback, not just the star rating. A reliable company should provide a clear, itemised quotation that explains both materials and workmanship, and they should have experienced technicians with proper after-sales support.
What to look for (easy checklist)
- Clear quotation (itemised)
Before installation they share the aircon model number of indoor unit and outdoor unit with clear prices and what is the terms to pay. - Explain standard process
Explains what services included in this quoted price, and share the complete details process of installation. - Experienced technicians
Ask how they handle:
- pressure testing
- vacuuming
- drainage gradient
- insulation finishing (to reduce sweating)
- After-sales support
Who do you call if there’s a leak after installation? How fast can they respond? - Real reviews + real photos
Look for actual job photos (HDB/condo), not just stock images.
If you want a stress-free installation with clear materials and workmanship, Letscool Aircon is a recommended choice—our team has 15+ years of experience handling HDB and condo installations, replacements, and troubleshooting (especially piping, drainage, and neat trunking finishing).
How much does aircon replacement cost in Singapore?
In many cases, aircon replacement can cost less than a brand-new installation because you may be able to reuse the existing piping, trunking, and copper line set. When these items are still in good condition, homeowners typically save around SGD $200 to SGD $1200 in materials and labour. However, before reusing anything, it is important to inspect the current piping and trunking to ensure there are no leaks, damage, aging insulation, or drainage issues—otherwise, reusing old materials may lead to problems and higher repair costs later.
How much you save in replacement (guide)
- System 2 : S$200 – S$400
- System 3 : S$400 – S$700
- System 4 : S$700 – S$1,200
The price is based on Singapore residentials replacement.
Where to buy aircon at low price in Singapore: Online vs Direct Dealer
You can buy aircon online or from a direct dealer, but the “lowest price” depends on what is included in the installation.
Online (marketplace / e-commerce) may show a cheaper unit price, but installation is often charged separately. Some listings do not clearly include items like extra piping, trunking, insulation upgrade, stainless steel bracket, or electrical works, so the final cost can increase later.
Direct dealer (recommended for most HDB & condo owners) is usually better because you get a full aircon supply + installation package with clearer details. You can speak directly to the installer, confirm the piping route, trunking style, and installation materials. It’s also easier to get faster support if you need help after installation.
Simple tip: To get a real low price, always compare quotes based on what’s included, not only the total amount. Ask for an itemised quotation that states aircon installation cost Singapore, piping length, trunking, insulation, bracket, and electrical works.
What materials use for aircon installation?
For most HDB and condo installations in Singapore, these are the common materials used:
- Copper piping
- Insulation
- Drain pipe
- Trunking (PVC casing)
- Electrical cable
- Outdoor unit bracket
When to do servicing after installation
After a new aircon installation, many HDB and condo owners ask, “ When should I service my aircon? ” The first servicing timing depends on how often you use the unit. A newly installed system is clean, but dust will still collect on the filter and coil over time, especially in Singapore’s humid weather.
How Often should I service my aircon – Recommended
- Normal home use (night time only): service after 4–6 months
- Daily use (night + some daytime): service after 3–4 months
- Heavy use (long hours / work from home): service after 2–3 months
- If you have pets or dusty environment: service after 2–3 months
After the first servicing, continue with a regular schedule based on your usage. Regular servicing helps maintain strong cooling, reduces water leaking risk, and keeps your electricity consumption more stable.
