How much does aircon installation cost in Singapore?

A single split-unit system typically runs from around $1,200 to $2,500 installed, depending on the brand, capacity, and how far the outdoor unit sits from the indoor unit. Multi-split systems covering a whole flat with 3-4 rooms often land between $4,000 and $8,000. Prices swing with copper pipe length, trunking work, and whether existing piping or brackets can be reused.

How long does an aircon installation take?

A single unit usually takes 3 to 5 hours if the wall and piping route are straightforward. A full system with multiple indoor units, especially in a new BTO or resale flat needing fresh piping and trunking, can take a full day or spread across two days.

How do I know if the installer did a good job?

Check that the outdoor unit sits level and firmly mounted, piping is neatly insulated and not exposed to sun where avoidable, drainage runs with a proper slope so water doesn't pool, and the installer tests the system for leaks (usually with a gauge reading) before leaving. Ask for the commissioning report or at least a verbal explanation of the pressure test.

How often do I need to replace or reinstall my aircon system?

Most split-unit systems last 8 to 12 years before efficiency drops enough to justify replacement, though this depends heavily on servicing frequency and usage. Renovation is the other common trigger, since re-piping and repositioning units often makes more sense than working around an old layout.

Aircon Installation in Singapore

A guide to hiring an aircon installation contractor in Singapore: what the job involves, what to check before signing, and how our rankings work.

Aircon installation covers putting in new split-unit or system (multi-split) air conditioners, running the copper piping and drainage between the indoor and outdoor units, wiring the electrical connection, and commissioning the system so it cools properly and doesn't leak. It also comes up when you're renovating a flat or office, replacing an old system entirely, or adding units to rooms that never had one. We've listed 528 businesses in Singapore that offer this work, ranging from one-man outfits to larger firms with teams of installers.

What separates a decent job from a bad one

Most problems with aircon installation show up months later, not on day one. Poor piping insulation causes condensation to drip through ceilings. A wrongly sized unit for the room short-cycles and wastes electricity, or runs constantly and still can't cool the space. Sloppy brazing joints on the copper lines lead to refrigerant leaks that take the gas out slowly over a year or two. When you're comparing contractors, ask about the brand and model they're proposing, whether they'll do a proper load calculation for the room size, how they route and insulate the piping, and what warranty covers both the equipment and their own labour. A contractor who wants to walk the site before quoting is usually more reliable than one who prices over the phone.

How we score contractors

Our rankings weigh factors like consistency of customer feedback, how long a business has been operating, responsiveness, and the range of installation work they actually handle, not just servicing. Full detail on how we calculate this is on our methodology page. For a shortlist of contractors that score well across these factors, see our ranked guide to air conditioning contractors in Singapore.

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All aircon installation, ranked by score and relevance

We found 528 businesses offering aircon installation; 516 met the criteria for the scored directory. The order weighs each business's overall score by how much of its reviewed work is aircon installation, so a lower-scored specialist can rank above a higher-scored generalist. Filter and sort below, or open the full map view.

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Enquiries submitted through this site's contact forms may be passed to partner providers who can carry out the work. We may receive a referral fee for these introductions, but our rankings and scores are based solely on our published scoring method and are never influenced by referral fees.

Common questions about aircon installation

How much does aircon installation cost in Singapore?: A single split-unit system typically runs from around $1,200 to $2,500 installed, depending on the brand, capacity, and how far the outdoor unit sits from the indoor unit. Multi-split systems covering a whole flat with 3-4 rooms often land between $4,000 and $8,000. Prices swing with copper pipe length, trunking work, and whether existing piping or brackets can be reused.
How long does an aircon installation take?: A single unit usually takes 3 to 5 hours if the wall and piping route are straightforward. A full system with multiple indoor units, especially in a new BTO or resale flat needing fresh piping and trunking, can take a full day or spread across two days.
How do I know if the installer did a good job?: Check that the outdoor unit sits level and firmly mounted, piping is neatly insulated and not exposed to sun where avoidable, drainage runs with a proper slope so water doesn't pool, and the installer tests the system for leaks (usually with a gauge reading) before leaving. Ask for the commissioning report or at least a verbal explanation of the pressure test.
How often do I need to replace or reinstall my aircon system?: Most split-unit systems last 8 to 12 years before efficiency drops enough to justify replacement, though this depends heavily on servicing frequency and usage. Renovation is the other common trigger, since re-piping and repositioning units often makes more sense than working around an old layout.

Guides to choosing aircon installation

What aircon installation costs in Singapore
Typical price ranges for a new aircon installation in Singapore, what pushes the price up, and how financing and instalment plans work.
What to expect from an aircon installation, step by step
How an aircon installation actually happens in Singapore, from the site visit to commissioning, and how long each stage takes.
Aircon installation checklist for a new BTO or resale flat
A practical checklist for getting aircon installed in a new BTO or resale flat in Singapore, from timing with renovation to choosing a contractor.