Aircon Chemical Overhaul: What It Is, When Do You Need It & How Much It Costs

posted by: City Cooling Management
June 4, 2025
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Aircon Servicing

If your aircon isn’t cooling as well as it used to, is leaking, or giving off a musty smell, a basic cleaning won’t suffice. You may need a chemical overhaul, especially if the problem lies deep inside the unit.

This guide covers everything you need to know about aircon chemical overhaul in Singapore, including when to do it, how it compares to a chemical wash, and the associated costs, as provided by City Cooling SG.

What Is an Aircon Chemical Overhaul?

Chemical Overhaul Process by City Cooling SG

An aircon chemical overhaul is a deep cleaning service where the indoor unit is fully dismantled. Components such as the fan coil, blower, and drain pan are removed, soaked, and scrubbed using chemical solutions to remove grime, mould, and bacteria buildup. This process restores the aircon’s efficiency and improves the air quality in your space.

By comparison, a chemical wash does not involve dismantling. It only cleans the surface areas of the coil and may not effectively reach deep-seated dirt or thoroughly address internal issues.

Comparison: Basic Cleaning vs. Chemical Wash vs. Chemical Overhaul

Here’s a breakdown of what each service includes:

Service Type	Basic Cleaning	Chemical Wash	Chemical Overhaul
Filter cleaning	✅	✅	✅
Coil cleaning	❌	✅ (without dismantling)	✅ (fully dismantled and soaked)
Mold & bacteria removal	❌	✅ (surface only)	✅ (thorough elimination)
Fan blower cleaning	❌	❌	✅ (fully removed and cleaned)
Drain pipe flushing	❌	❌ (or minimal)	✅ (deep flushing)
Disassembly	❌	❌ (partial, if any)	✅ (complete disassembly)
Suitable for	Light maintenance	Moderate dirt or odor	Severe dirt, odor, inefficiency, leakage

Signs You Might Need a Chemical Overhaul

Clean Aircon After Overhaul by CitycoolingSG

Watch out for these signs that indicate a chemical overhaul is due:

Aircon or piping condensation
Weak or no cooling
Leaking water
Rusty components
Musty or unpleasant odours
Unusual noises (buzzing, rattling)
Ice forming on coils
Increased electricity bills

These issues often stem from internal blockages or buildup that simple cleaning cannot resolve.

When Regular Cleaning Isn’t Enough

Basic servicing works for general upkeep, like filter washing and brushing accessible parts. But for deeper issues caused by dirt, mould, or clogged drainage, a chemical overhaul is more effective.

What’s included in an overhaul:

Full disassembly of an indoor unit
Soaking and scrubbing of fan coil, blower, and drain pan
Deep drain pipe flushing
Use of safe, professional-grade chemicals
Manpower and post-cleaning system test

How Often Should You Do a Chemical Overhaul?

For residential use, it’s recommended to do a chemical overhaul once a year. If your aircon is used frequently or in a dusty environment, consider doing it every 6–12 months to maintain performance and hygiene.

Long-Term Benefits

Fewer breakdowns and lower repair costs
Improved cooling performance and airflow
Lower energy bills due to better efficiency
Elimination of mould and allergens = cleaner air
Longer lifespan for your aircon unit

Transparent Pricing with City Cooling SG

Service Type	Price (before GST)
Chemical Overhaul (9–12K BTU)	$130 per unit
Chemical Overhaul (18K BTU)	$160 per unit
Chemical Overhaul (24K BTU)	$180 per unit
Chemical Wash (no dismantle)	$85 per unit
Chemical Wash (condenser)	$120 per unit

*Final pricing is subject to GST.

🌟 Why Choose City Cooling SG for Your Overhaul?

✅ Experienced Technicians
Our team has over 10 years of experience with all major aircon brands in Singapore.

💵 Transparent Pricing
No hidden charges. What you see is what you pay—clear breakdowns for all services.

🧪 Quality Chemicals Used
We use non-corrosive, eco-friendly chemicals that are safe for your family and pets.

🏠 Trusted by Thousands
From HDB flats to condos to commercial buildings, City Cooling SG has earned the trust of customers islandwide.

Book Your Service with Confidence

Experiencing poor airflow, leaks, or unusual odours? Contact us & let our team handle it with a professional chemical overhaul that gets your aircon running like new.

📞 WhatsApp us now at +65 9123 4567
🌐 Fast, reliable service throughout Singapore

7 Qualities of a Good Aircon Servicing Company in Singapore

posted by: City Cooling Management
May 25, 2023
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Aircon Servicing

With so many options out there, finding the right aircon servicing company in Singapore can be overwhelming. Whether you’re dealing with a leaking unit, planning for an aircon replacement, or need routine aircon maintenance in Singapore, choosing a reliable service provider ensures peace of mind and long-term savings.

In this post, we highlight 7 must-have qualities to look for when choosing a professional team for aircon cleaning, repair, or gas top-up services.

1. Certified and Experienced Technicians

A reputable company employs trained and licensed aircon technicians with years of hands-on experience. They should be capable of handling everything from regular aircon cleaning to complex tasks like aircon leak repair and compressor troubleshooting.

Learn More: Benefits of having your Aircon Professionally Installed

2. Transparent Pricing

Clear, upfront pricing without hidden charges is a mark of trust. Always check if their quote includes all necessary costs, especially for services like aircon gas top up, replacement parts, or disposal fees for old units.

3. Comprehensive Aircon Services

Look for companies that offer a full suite of solutions, including:

Aircon maintenance in Singapore
Aircon cleaning and chemical wash
Aircon gas top up (R22/R410A)
Aircon leak repair and troubleshooting
Aircon replacement and installation

This shows the company has the right skills and tools to handle any situation effectively.

4. Positive Reviews and Reputation

Check Google reviews, Facebook ratings, or even Reddit threads like this discussion to see what real customers are saying. Look out for consistent praise in areas like punctuality, professionalism, and post-service support.

5. Fast Response Time & Reliable Scheduling

In humid Singapore, you can’t afford to wait days for aircon servicing—especially for urgent issues like leaks or sudden breakdowns. A reliable company offers a fast response, even on weekends or holidays.

6. Warranty & After-Service Support

A confident service provider backs up their work with a service warranty and clear aftercare. Whether it’s a gas top-up or replacement unit, always ask about post-service support and workmanship guarantees.

7. Knowledge of Different Brands and Models

Different aircon systems—from Daikin to Mitsubishi to Panasonic—have unique service requirements. A good servicing company is familiar with a wide range of brands and can recommend the best action plan, whether it’s cleaning, repair, or full replacement.

Looking for a Trusted Aircon Servicing Company?

At City Cooling SG, we provide reliable and affordable aircon maintenance in Singapore, from cleaning and servicing to leak repair and full system replacement.

✅ Certified technicians
✅ Transparent pricing
✅ Fast response, islandwide
✅ Support for all major brands

📞 Call or WhatsApp us today for a free quote!

Frequently Asked Questions

Q: How often should I do aircon maintenance?
A: Every 3 to 6 months for residential units; monthly for heavy-use commercial systems.

Q: What’s included in regular servicing?
A: Cleaning of filters, fan coil, and drain pipe; inspection of gas level and components.

Q: When should I consider replacing my air conditioner?
A: If your air conditioner is more than 10 years old and requires frequent repairs, replacement may be a more cost-effective option.

Q: Can I top up gas without fixing a leak?
A: No. Gas top-up without leak repair is temporary and can damage the system. Always fix leaks first.

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Should You Repair or Replace Your Aircon? A Practical Guide for Singapore Homes

posted by: City Cooling Management
May 17, 2023
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Aircon Repair

We often take the cool comfort of air conditioners for granted—until they stop working. Whether it’s a leaking system, reduced airflow, or a total breakdown, you’re faced with a choice: repair the issue or consider a full aircon replacement in Singapore.

But how do you know which choice makes more sense? Let’s explore key factors to help you decide when to repair and when to replace your aircon.

1. Age of Your Aircon Unit

Most outdoor unit air conditioners last 10 to 15 years, depending on usage and care. As they age, they lose efficiency and break down more often, sometimes requiring costly air conditioning parts like compressors or circuit boards.

If your aircon is approaching the end of its life, replacing it with a newer, more efficient model might save you more in the long term.

2. Maintenance History

Regular aircon servicing in Singapore—filter cleaning, chemical washes, and system checks—can extend your unit’s lifespan. If your system has been well-maintained, repairing it could be the smarter choice. But if it frequently breaks down or lacks service history, replacement is usually more reliable.

Learn More: 3 Benefits of Regular Aircon Servicing and Maintenance

3. Cost: Repair vs Replacement

Repair may seem cheaper upfront, but frequent breakdowns and inefficiencies can rack up bills quickly. New systems are more energy-efficient and come with warranties, reducing long-term expenses.

Pro Tip: If your repair costs exceed 50% of the price for an air conditioner replacement, it’s time to upgrade.

4. Energy Efficiency and Comfort

Older systems often take longer to cool and drive up energy bills. A modern aircon replacement offers better performance, faster cooling, and energy savings, especially with a new outdoor unit air conditioner installed properly.

5. Final Verdict: Repair or Replace?

Situation	Best Option
Unit is <10 years old, minor issues	Repair
High energy bills, poor cooling	Replace
Frequent breakdowns, outdated model	Replace
Minimal faults, serviced regularly	Repair

Need Expert Help?

At City Cooling Singapore, we help Singapore homeowners make informed decisions about repairing or replacing their air conditioning systems. Whether you need expert repair, installation, or full aircon replacement in Singapore, our technicians are here to help.

Everything you Need to Know about Aircon Gas Top Up In Singapore

posted by: City Cooling Management
May 9, 2023
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Aircon Servicing

Struggling with weak cooling or warm air from your air conditioner? You might need an aircon gas top-up. In this guide, we’ll break down everything you need to know about aircon gas top up in Singapore, including prices, signs you need it, and how to maintain your system for efficient air cooling.

🔧 What Is Aircon Gas Top-Up?

An aircon gas top-up is the process of refilling refrigerant (also known as cooling gas in AC) into your air conditioning unit. This refrigerant is essential for the cooling process. Without enough gas, your aircon won’t be able to cool your room effectively.

Learn More: Aircon Piping 101: An Introduction to Aircon Pipes

Common types of refrigerants in Singapore:

R22 (older systems, being phased out)
R410A (eco-friendlier, more common in newer models)

❄️ Why Is Aircon Gas Important?

The refrigerant gas absorbs heat from indoor air and releases it outside. When the gas level is low, your aircon struggles to cool, causing higher electricity bills, increased wear and tear, and reduced cooling efficiency.

🛑 Signs Your Aircon Needs a Gas Top-Up

Watch out for these warning signs:

Aircon blowing warm or room-temperature air
Longer cooling time
Ice formation on the evaporator coil
Hissing sounds (possible gas leak)
Higher-than-usual electricity bills

If you notice these, it’s time to book an aircon cleaning service or top-up session.

💵 Aircon Gas Top-Up Price in Singapore (2025)

Pricing depends on the type of gas and BTU capacity of your unit. Here’s a general pricing guide:

BTU Capacity	R22 Gas Top-Up	R410A Gas Top-Up
9,000 – 12,000 BTU	$60 – $80	$80 – $100
18,000 BTU	$80 – $100	$100 – $120
24,000 BTU	$100 – $120	$120 – $150

Note: Prices vary based on gas type and brand. Contact us for a complimentary quote.

🔍 Aircon Gas Leak vs Low Gas

It’s important to know the difference:

Low gas may occur naturally over the years.
Gas leaks require urgent repair before a top-up.

Our certified aircon technicians will perform a full system check to detect leaks before any gas refill.

🧰 What’s Included in a Gas Top-Up Service?

At City Cooling Engineering, our gas top-up service includes:

Gas level inspection
Leak detection (if necessary)
Top-up with R22 or R410A gas
System testing
General aircon cleaning (optional add-on)

🧼 Combine with Aircon Cleaning Services

For optimal performance, we recommend bundling your gas top-up with regular aircon cleaning services. This helps prolong your unit’s life and ensures consistent air cooling all year round.

🏆 Why Choose City Cooling Engineering?

✅ Experienced & certified technicians
✅ Transparent pricing with no hidden fees
✅ Fast response across Singapore
✅ Servicing all brands and models
✅ Excellent Google reviews

📞 Book Your Aircon Gas Top-Up Today!

Don’t let a gas issue disrupt your comfort. Contact City Cooling SG for reliable and affordable aircon gas top-up in Singapore.

📲 WhatsApp / Call: +6598909677
📍 Service Areas: Islandwide in Singapore
💬 Instant Quote Available

🧠 Frequently Asked Questions (FAQs)

Q: How long does a gas top-up take?
A: Around 30–60 minutes, depending on unit type and condition.

Q: How often should I top-up the aircon gas?
A: Typically, every 1.5 to 2 years unless there’s a leak.

Q: Can I DIY a gas top-up?
A: No. It requires licensed handling of refrigerants. Always hire a professional.

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Tips and Tricks to Prolong the Longevity of your Aircon

posted by: City Cooling Management
April 26, 2023
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Aircon Servicing

Air conditioners have become an indispensable appliance in any modern household or office. They help to regulate the room temperature and create a comfortable environment, especially during hot and humid weather conditions. They can also improve indoor air quality and promote better health.

However aircons can be expensive to replace and aircon installation in Singapore is not cheap. A malfunctioning aircon may also directly increase your electricity bills in the long term without you even realising. To save on costs, owners should prioritise taking care of their aircon units to prolong their longevity. Here are some tips and tricks to help you do just that.

Give your aircon a break

One of the simplest ways to prolong the longevity of your aircon is by giving it a break every so often. While it may be tempting to keep your aircon running continuously, especially during the hottest months of the year, this can put a strain on the unit and cause it to wear out much faster. Additionally, running the aircon all the time leads to higher electricity bills, which can be costly in the long run.

Instead, what you can do is to try and use your aircon in moderation. For example, you could turn it off when you leave the room or during cooler parts of the day. This can help to reduce the strain on the unit and prolong the lifespan of your aircon unit.

Ensure regular servicing and maintenance

Another key factor in prolonging the longevity of your unit is regular aircon servicing and maintenance. Over time, dust and debris can accumulate inside the aircon, which can cause it to malfunction or even break down. Additionally, regular maintenance can identify potential issues early on, before they become more serious and the costs involved in repairing the unit increase significantly.

To ensure that your aircon is properly maintained, it is important to schedule regular servicing appointments with a professional. During these appointments, a technician will clean and inspect the unit, replace any worn-out parts, and ensure that it is functioning properly. This can help to extend the life of your aircon and save you money in the long run.

Engage a professional during installation

When it comes to aircon installation, it is essential to engage a professional. Proper installation is key to ensuring that your aircon functions optimally and lasts for as long as possible.

A professional aircon installer will be able to determine the appropriate size and capacity for your unit, as well as ensure that it is properly positioned and connected to your home or office’s electrical system. Additionally, they will be able to offer advice on how to properly maintain your aircon, including tips on cleaning and filter replacement.

Unlike some other appliances, aircons are running continuously for several hours in a day. When temperatures soar, they are forced to work harder to cool the room down. But often the aircon is underappreciated and taken for granted, until the system breaks down. To avoid such situations and get the most out of your unit, the simple steps outlined above can go a long way in prolonging its lifespan.

At City Cooling aircon we are dedicated to empowering you to get the most out of your aircon. Contact us today to learn more about our services and make an appointment with our team of professionals.

Aircon Piping 101: An Introduction to Aircon Pipes

posted by: City Cooling Management
April 11, 2023
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Aircon Piping

Whether in our homes, offices, or cars, air conditioning has become an essential aspect of our lives. It allows us to be more productive and lets us rest in cool comfort. It has become so ubiquitous in our environment that most people don’t spare much thought for what goes on under the surface of an air conditioning unit.

Understanding how an aircon unit cools down a room can be useful as it gives us insights into potential breakdowns and lets us stay a step ahead when it comes to maintenance and aircon servicing. It also allows us to make more informed decisions in terms of installation and replacement.

To get started on learning more about how air conditioning works, we’ve put together a short guide about how piping works in an aircon unit, and why you should keep an eye out for signs of potential failure.

Introduction to Aircon Piping and its Importance

Aircon piping is a vital component of an air conditioning system. Pipes transport refrigerant throughout the entire system and drain away accumulated condensed water. Once a pipe has begun to leak, it is recommended that you schedule an aircon pipe replacement as soon as possible to avoid running into more problems down the road.

Good aircon piping makes your aircon unit run more efficiently, while also regulating the temperature of the environment, and keeps the air clean and free of dust and other contaminants. Properly installed and maintained, aircon piping reduces energy consumption and costs, making it an excellent investment in the long run.

Copper Pipes and Water Pipes

When people refer to aircon pipes, they may be talking about two different piping systems within the aircon unit. Most aircon pipes in residential and commercial systems today utilise both copper pipes and water pipes in their functioning. These are known as split-type aircon systems.

Copper pipes are durable, resistant to corrosion, and easy to install. They are also highly conductive, allowing for efficient transfer of heat and refrigerant, making them a popular choice for aircon piping. Generally copper pipes can last for years before requiring an aircon pipe replacement, but this can vary depending on several factors.

Water pipes, on the other hand, are more often used in water-cooled systems. These systems use water as a coolant instead of refrigerant, making them more energy-efficient and better for the environment. Water pipes are typically made from PVC or other types of plastic material, making them lightweight and easy to install.

When to Replace Your Aircon Pipes:

Despite their durability, aircon pipes are not immune to wear and tear. Over time, aircon pipes may develop leaks which can affect the efficiency and performance of your air conditioning unit. To avoid this you should prioritise aircon servicing in Singapore, as even small leaks can get worse over time and lead to system failure.

Stains on your aircon pipes are a sign of a refrigerant leak. Refrigerant leaks can cause your air conditioning unit to work harder, resulting in higher energy bills. They can also cause damage to the compressor and other components. If you notice stains on your aircon pipes, it is important to have them inspected by a professional and replaced if necessary.

Other signs that your aircon pipes are leaking include condensation on the pipes, water pooling around your unit, or noticeable decreases in performance. Some condensation is to be expected during normal operation of your aircon. However excess condensation can lead to corrosion and other types of damage to your aircon pipes.

With how essential aircons are to our daily lives, it’s good to stay ahead of maintenance and aircon servicing schedules. Aircon pipes are less likely to leak if properly cared for, and getting a professional tune up every few months can ensure that your aircon unit is in good working order. By preventing leaks you can save money on future repairs, keep your energy bill lower, improve indoor air quality, and extend the lifespan of your aircon.

As experts in aircon installation, servicing, and replacement, City Cooling aims to provide all our customers with professional, high-quality aircon servicing experience. Contact us today to learn more about what we do and schedule an appointment with our team.

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