Hire Aircon Installation Companies In Singapore (13 Best With Reviews & Prices in 2025)

Sweltering in Singapore’s heat? Hire the best aircon installation companies in Singapore with Homees’ vetted directory! Find 2025’s top pros like Gain City and book your condo, office or HDB aircon installation with a few clicks. Compare costs, reviews, and HDB-compliant services and get a free quote from Homees’ vetted cooling companies today. 

Find out more about how to get an HDB aircon installation permit for your project by checking the HDB guidelines here.

Aircon Servicing Cost Calculator: Price Estimates in Singapore (2025)

Here is an aircon servicing calculator for your reference.

13 Best Aircon Installation Companies In Singapore (Our Top Picks)

 

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Aircon Installation Services and 2025 Price Estimates in Singapore

Choosing the right aircon installation service in Singapore ensures efficient cooling for your HDB, condo, or office. Below is a list of common services offered by top companies like Gain City, Coolman, DW Aircon, and LK Brothers, with fact-based 2025 price estimates. Compare these HDB-compliant services to find the best fit, and get a free quote from Homees’ vetted pros today!

• Split-System Installation (SGD 1,000–3,500): This installation involves one or more indoor units connected to an outdoor condenser, ideal for HDB flats and condos. It includes labour, piping, and brackets. Prices vary by room size (e.g., 300 sq ft needs 10,500 BTU), brand (e.g., Daikin, Mitsubishi), and unit count. 
• Window Unit Installation (SGD 500–1,500): This installation installs a single unit below a window and is suitable for smaller HDB rooms. It is less complex than split systems. Costs usually depend on unit size and labour. This option is ideal for budget-conscious users, but units are noisier than split systems.
• Central System Installation (SGD 5,000–12,000): This service installs ducted systems for large condos or offices, providing integrated cooling. However, due to its complexity and materials, it requires extensive ductwork, hence its higher cost.
• Chemical Washing (SGD 100–250 per unit): This process cleans internal components (e.g., coils and filters) with chemicals, which are often added to the installation for maintenance. Typically, regular cleaning prevents leaks and maintains efficiency post-installation.
• HDB Permit Processing (SGD 50–200): Secures HDB approval for installations, covering permit fees and BCA-trained installer verification necessary for compliance with BCA standards and building codes.

Compare these services and book your 2025 aircon installation with Homees’ trusted providers for a cool, hassle-free experience!

Other Types of Aircon Installation Services

An aircon installation company can provide several additional services, which you may need according to your home’s specifics.

Some of the niche services available are:

• Central Air Conditioning Installation
• Dryer Vent Installation
• Duct Insulation & Sealing
• Ductwork Installation
• Exhaust Fan Installation
• Furnace Installation
• Smart Thermostat Installation

A 2025 Checklist for Hiring an Aircon Installation Company in Singapore

Hiring the right aircon installation company in Singapore ensures efficient cooling for your HDB, condo, or office. Follow this 2025 checklist to choose trusted pros like Gain City or LK Brothers for HDB-compliant installs. Compare services, costs, and reviews to make an informed choice, and book with confidence using Homees’ vetted directory.

• Verify BCA Certification: Ensure the company employs BCA-trained installers for HDB compliance. Check BizFile registration for legitimacy. 
• Check Reviews and Ratings: Look for companies with average ratings of 4.5/5 or higher on Homees or Google. Gain City and Coolman Aircon excel with high ratings for HDB and condo installs.
• Compare Quotes: Request detailed quotes (SGD 1,000–3,500 for split systems) covering labour, piping, and HDB permits (SGD 50–200). LK Brothers offers competitive rates (~SGD 800).
• Confirm Brand Expertise: Choose companies experienced with top brands like Daikin or Mitsubishi who specialise in these for HDB flats.
• Ensure Warranties: Verify 1-year unit and 5-year compressor warranties. Most companies offer these warranties in the standard package.
• Review After-Sales Support: Select companies offering maintenance and repairs. LK Brothers provides reliable post-installation care for HDB units.
• Check HDB Guidelines: Confirm compliance with HDB rules (e.g., internal piping, no corridor units). 

Ready to hire? Book top aircon installation companies in Singapore with Homees’ free quotes today!

Factors Affecting Aircon Installation Costs

Estimating the cost of aircon installation and servicing in Singapore requires taking into account several factors:

1. Size and Location

Undoubtedly, the most important factors that may affect your aircon installation cost is the size and location. Typically, a bigger room requires a larger volume of air to cool and a unit with matching capacity. In this regard, the first thing a professional company for aircon installation should do is calculate the room size and recommend an aircon with a matching cooling capacity.

You can calculate the number of BTUs by multiplying the square feet of the room by 35. For example, a 150-square-foot room will need 5000 BTUs for an efficient aircon installation. If you have areas facing morning or afternoon sun, you may need a system that works harder to cool them because of the higher temperature.

Correctly selecting the right type of aircon for your room is another critical factor before installing it. For example, a central air-conditioner typically has higher power and capacity and can cool a much bigger area than a wall-mounted air conditioner. Below are a few more specific examples:

2. Types of Aircon & Brands

• Room air-conditioning system: Such units are common and cost-efficient. They usually last around 10-15 years but require regular aircon servicing.
• Ductless mini-split aircon system: This type of air conditioning solution is a popular solution for Singapore homes because of its convenience, easy installation and longer lifespan than traditional aircon systems. Its primary feature is the compressor positioned outside, which requires careful consideration when choosing its location.
• Central air-conditioning system: Central aircon systems are the standard and most popular way of cooling commercial buildings. Their primary advantage is the larger area they cover and higher power demands they can meet. Typically, they last 15-20 years.
• Evaporative cooler system: This type of system is popular in relatively dry places. Unlike regular air conditioning, which reduces the humidity of the surrounding area, it adds moisture to the surrounding area. Its lifespan is around 15-20 years and usually requires more frequent aircon servicing.

3. Electrical and Power Consumption (correlates to its capacity)

Air conditioning systems are well-known for their high power consumption. Due to this, selecting the right air conditioner that fits the room size, among other factors, can result in significant long-term savings.

Find out the estimates of your aircon installation project price with our cost guide.

Typical Mistakes In Aircon Installation Projects

When installing a complex system like the aircon, there are many areas to take note of that can prevent you from having a smooth installation experience. A few of the typical “screw-ups” include:

1. Unprofessional workmanship

Most of the time, we prefer hiring a cheap aircon company or installer rather than a more expensive one. After all, both more affordable and more costly options provide the same installation service.

Of course, you may yield some savings at the end of the day. Still, more often than not, the cheaper option’s quality may be lower and cause problems such as failing to secure the supports of the aircon properly and failing to detect leaky or faulty pipes. Sometimes, it pays to pay more for a good, reliable company.

2. The wrong type of aircon

As mentioned above, choosing the right system can involve many different factors. Choosing the wrong type, capacity, or brand of air conditioner for a given room often results in a less-than-efficient cooling system and significantly higher bills over time.

3. Improper insulation

Without proper insulation, the air-conditioning unit will consume more power to cool areas that have been heated up due to inadequate insulation. Typically, window aircon systems require filling open spaces with insulation foam. In contrast, adequately sized ducts should be installed for ductless mini-split air conditioners, depending on the load circulation.

4. Failure to detect leakages

Leakages are one of the most common problems that affect air conditioners all over the world. Even if your unit is new, it is vital to do regular checks and see if it has leaks. If your aircon loses refrigerant, engage an aircon gas top-up service as soon as possible. You may want to find aircon troubleshooting professionals to find such leakages.

Questions to ask a prospective aircon installation contractor

Always hire a reputable and reliable company when engaging an aircon installation contractor. Before installation, check a few of the aircon brands they carry and other details, such as their profile, experience, and after-service warranty.

Whether installing a portable air conditioner or a window unit air conditioner, you want to ask them these questions to ensure a smooth installation experience.

Does the aircon installation company provide a warranty for the service?

Usually, installed air conditioners have a warranty of one year and their compressor for five years. Please clarify this with the professional you have engaged.

Is the aircon company licensed, bonded, and insured for general liability and workers’ comp?

More questions to ask:

• What is the size of your company (total staff strength)?
• What kinds of training have your staff been through?
• Are your aircon technicians certified to handle refrigerant gas?
• Can you provide a free written estimate outlining all the terms and conditions of what we discussed?
• What are the payment terms? Do you offer a financing plan?
• Do you provide a warranty or guarantee for your service or the unit?
• What aircon brands do you carry or service?
• What are your brands’ energy efficiency ratings?
• How long will the job take? Will you clean up after the job is completed?
• How will a new aircon system affect my utility bills?

How long does the aircon installation take?

Typically takes between 4-6 hours, depending on the scale of the installation. This is only a raw estimate as every project is different, depending on:

• Location
• Brand of aircon
• Experience of aircon contractors
• The layout of your home

When should I replace my air conditioner, and when should I repair it?

The decision to choose whichever option can sometimes be tough and requires good judgment. The general advice is that if the unit is relatively new and you can fix it with a low-cost repair, the answer is obvious: repair your unit. If your air conditioner is over eight years old, consider replacing it instead of servicing it.

This is because aircon units are constantly improving in terms of energy efficiency and environmental friendliness. Installing a brand new air conditioner can make more economic sense if it can bring considerable cost savings to you over the long run.

It is advisable to have an inspection after some time, even if your air conditioner is working correctly, as small leakages or faulty ductwork can undermine the efficiency of your air conditioning units.

In our article, we have covered why your aircon water leaks, drips or cannot stay cold. Technicians can spot these problems before they become major nightmares when they get big, helping you reap the most benefit from your existing aircon system.

Compare and review the best aircon installation contractor in Singapore

At Homees, we provide a directory of the best-rated aircon companies in Singapore. With many aircon companies in our database, we can offer you all kinds of aircon help, including aircon servicing, repair, chemical washing, chemical overhaul, gas top-ups and troubleshooting.

View their gallery and portfolio, and compare prices of similar aircon installation projects in your proximity. You can read the reviews from previous customers to understand the background of prospective contractors and how they rate their work, and message them directly to ask any specific questions.

Frequently Asked Questions (FAQs) About Aircon Installation in Singapore

Worried about your home or office air conditioning? We’ve got answers for every question regarding your condo, office, or HDB aircon installation in Singapore!  Here’s a shortlist with the most frequently asked questions to help you hire the best aircon companies in 2025.
Last updated: May 2025. Check our Aircon Servicing Cost Guide for more.

Choosing a Reliable Aircon Company

Find trusted aircon installation companies with these key questions.

How do I choose a reliable aircon installation company in Singapore?

Look for BCA-trained aircon installation companies in Singapore with average review ratings of 4.5 or higher, and warranties (1-year unit, 5-year compressor). Expertise in reputable air conditioner brands like Daikin or Mitsubishi is a bonus. Check certifications and after-sales support. Compare top picks like Gain City and Coolman Aircon on Homees for your HDB or condo move.

Why avoid cheap aircon installers in Singapore?

Cheap aircon installers in Singapore may cost less but often at the expense of cut corners, leading to leaky pipes, poor cooling, or voided warranties. They often lack BCA training or proper tools, risking HDB non-compliance. In this regard, it’s best to rely on vetted pros and pick from trusted options like the ones on Homees.

How do I verify an aircon installer’s credentials in Singapore?

You can easily verify if your installers have the necessary BCA training and registration via BizFile for Singapore aircon installation compliance. To make things easier, you can choose one of the certified pros on our list of top aircon companies for 2025.

Costs and Services

Understand pricing and what’s included in aircon installation services.

How much does aircon installation cost in Singapore?

An aircon installation in Singapore varies by room size, brand, and labour and may range from $800 for split systems to $12,000 or more for central systems in 2025. If you need precise quotes for your HDB aircon installation, use Homees’ calculator.

What’s included in an aircon installation package?

An aircon installation package usually includes labour, piping, brackets, and the unit. Wiring or chemical washing are extras which may cost you an additional $100 to $250. That’s why, we strongly advise you to ask for a detailed quote covering HDB-compliant installation and warranties to avoid surprises.

Do aircon installation companies offer after-sales service?

Most Singapore aircon installation companies provide after-sales services like maintenance, repairs, and warranty support (1-year unit, 5-year compressor). Confirm these services upfront for long-term care. 

Installation Process

Learn about the installation timeline and professional requirements.

How long does an aircon installation take in Singapore?

A typical aircon installation in Singapore takes 4–8 hours, depending on system type and complexity. Split systems need more piping, while window units are faster. Keep in mind that HDB installations may require permit checks, which can delay your installation. In this regard, it’s best to schedule with Homees’ pros in advance for efficient service.

Can I install an aircon myself in Singapore?

DIY aircon installation is possible but risky, as it requires specialised tools and expertise. Moreover, you’ll need HDB permits, which you can get only if you’re a BCA-trained pro. Hire the best aircon companies for a safe, compliant HDB or condo installations that ensure efficiency.

Why is professional aircon installation preferred over DIY?

Hiring vetted professionals ensures efficient aircon installation, long-lasting unit, and full HDB compliance. Moreover, experts use proper tools, dispose of waste safely, and offer warranties, which guarantee long-term efficiency. Avoid cheap installers to prevent leaks or poor performance and book trusted pros on Homees.

System Selection

Choose the right aircon system for your space.

How do I choose the right aircon system for my Singapore home or office?

Typically, you’d want to choose an aircon system based on your room size, budget, efficiency, and smart features like Wi-Fi control. If you still need advice from an expert, contact our Homees’ pros to help you pick the best unit for your HDB or office.

Which aircon brands are best for HDB flats in Singapore?

Every system with a 5-star efficiency tag is a good fit, and brands like Daikin and Mitsubishi rarely disappoint. Their affordability and quality make them top aircon brands for HDB flats, where the standard performance requirement is 10,500 BTU for 300 sq ft.

What are the benefits of energy-efficient or smart aircon units?

Energy-efficient aircon units (NEA 5-tick) cut electricity bills, while smart units with Wi-Fi control offer remote adjustments. Both features are extremely suitable for HDB or office spaces where you want to save costs and boost comfort for the ultimate cooling experience.