Everything You Need to Know About Aircon Condensation

Everything You Need to Know About Aircon Condensation

Aircon condensation is a familiar scene in many Singapore homes. Your air conditioner, a lifesaver during hot and humid days, might start dripping water unexpectedly. This phenomenon occurs when warm air meets the cold surfaces of your aircon unit.

From the cooling coils to the ductwork, various parts of your system can show signs of moisture accumulation. Understanding why this happens, identifying its causes, addressing preventive measures, and knowing the costs involved are crucial steps to solving this issue.

You’re not alone if you’ve noticed puddles or damp spots near your unit. Condensation can stem from factors such as bacterial growth in filters, inadequate insulation around conduits, or even installation mishaps.

But don’t worry—solutions range from simple DIY fixes to professional maintenance routines provided by experts like Billy Aircon.

In Singapore’s climate—where humidity levels soar—it becomes all more important to tackle these issues head-on to prevent mould growth and ensure indoor comfort remains uninterrupted.

Ready for dry floors again? Keep reading.

Key Takeaways

  • Aircon condensation happens when warm, moist air meets cold surfaces inside your unit, leading to water droplets.
  • Dirty filters, poor insulation, and blocked drain pipes are common causes of condensation. Regular checks can prevent these issues.
  • To stop condensation, clean filters monthly, use dehumidifiers in humid areas, and ensure proper installation and maintenance by professionals like Billy Aircon.
  • Weatherproof fittings like insulated ductwork help keep moisture out and reduce the risk of condensation on your aircon system.
  • Fixing aircon condensation costs vary from DIY methods at almost no cost up to professional services that may require a significant investment depending on the severity of the issue.

Aircon Trunking Air Condensation – Why it Happens


Warm, moist air hits cold surfaces inside your aircon trunking. This causes condensation. Your air conditioning unit cools the house, making the inside of the trunking much colder than the surrounding warm air.

When these two meet, water droplets form. Poor insulation and badly installed trunk joints let more warm air in and worsen this problem. So, condensation is normal but can be a sign of issues needing attention to avoid damage like mildew or mold growth in your system.

Causes of Aircon Condensation

Aircon condensation happens for several reasons. Understanding these can help you prevent it.

  1. Dirty air filters block normal airflow, causing the air conditioning system to work harder and produce more condensation.
  2. Warm air entering the system mixes with cold surfaces inside, leading to moisture formation.
  3. Bacteria build-up in your system can block the normal flow of water vapor, resulting in water drops forming where they shouldn’t.
  4. Poor insulation around air conditioning trunking makes it easier for warm indoor air to meet cold surfaces, creating condensation.
  5. Faulty installation of the trunk can leave gaps that allow moist indoor air into areas meant to stay dry.
  6. Blocked drain pipes prevent condensate from draining away properly, causing back-ups and leaks.
  7. High relative humidity in your home adds more moisture to the air, which your air conditioning system then has to remove, sometimes leading to excess condensation.
  8. Issues with PVC pipes or trap floors not functioning correctly can make condensation problems worse by preventing proper drainage or allowing too much humid air into the system.

Each point directly impacts how well your cooling devices manage moisture levels in your home, underlining the importance of regular checks and maintenance to keep everything running smoothly and drip-free.https://www.youtube.com/watch?v=JMjUJ0yS8Lo

How can I prevent air condensation?



Stopping air condensation keeps your air conditioning system in top shape. It saves money and stops water damage. Here’s how you can do it.

  1. Clean or replace the air filters monthly to ensure smooth airflow and less strain on your system.
  2. Connect the drip pan correctly to the drain tube to avoid water pooling and potential leaks.
  3. Wrap ductwork in insulation materials; prevents warm air from meeting cold surfaces, reducing condensation.
  4. Keep humidity levels in check inside your house. Use dehumidifiers if you’re in a very humid part of Singapore.
  5. Seal gaps around windows and doors to stop moist outside air from entering, which also helps your air conditioner work more efficiently.
  6. Have Billy Aircon service your system routinely; their technicians can spot issues early and prevent condensation before it starts.
  7. Ensure electrical cables within the system are correctly placed and secured, as loose cables can disrupt airflow leading to condensation problems.

Each step mentions actions like cleaning, sealing, using dehumidifiers, checking humidity levels, and ensuring proper installation and maintenance—focusing on preventative measures that homeowners can take to avoid issues with their air conditioning systems due to condensation, emphasizing maintenance, correct installation, and established use practices as critical elements for prevention.https://www.youtube.com/watch?v=TIDb-pdOnXM

Weatherproof Fittings

Weatherproof fittings protect your aircon from water damage. They seal up gaps around windows and doors, keeping moisture out. This means less condensation on your aircon trunking and pipes.

Billy Aircon knows how crucial this is. With years of fixing leaks, they use weatherproof seals that last.

To fight off condensation, making sure air ducts have proper insulation matters a lot. It keeps the cold in and the heat out. This stops water vapors from turning into droplets in your system.

In Singapore’s humidity, Billy Aircon fits systems with strong ventilation to keep everything dry inside.

Maintenance Costs

Maintaining your air conditioning system in top shape involves costs, especially when preventing or fixing condensation issues. Here’s an insightful look into what you might spend.

Service Average Cost (SGD)
Regular servicing $100 – $150
Chemical wash $150 – $200
Replacing air filters $40 – $60
Insulating ductwork $200 – $300
Fixing blockages or leaks $100 – $400
Emergency repairs $250+

Regular aircon servicing ensures proper drainage and identifies blockages or leaks early. This service costs between $100 and $150. A chemical wash, crucial for deep cleaning, ranges from $150 to $200. Replacing air filters, necessary for airflow and preventing condensation, costs about $40 to $60. Insulating ductwork, which reduces condensation risks, can set you back $200 to $300. Addressing blockages or leaks varies widely, from $100 to $400, depending on the issue’s severity. Emergency repairs start from $250 but can be higher based on the problem and timing.

Investing in these maintenance tasks can save you from higher costs down the line. Regular checks and fixes ensure your aircon runs efficiently, preventing condensation and its related problems.

Trunking Condensation

Trunking condensation in your air conditioning system can be a real problem. This happens when the cold surfaces inside the trunk attract warm, moist air. The moisture from the air turns into water droplets on these surfaces.

Bad insulation and poorly installed joints are often to blame. Also, if there’s a blockage in the trap floor, it stops water from draining away properly.

Billy Aircon has seen many cases like this in Singapore. They know how to fix it fast. They make sure everything is installed right and there’s good insulation around the pipes. This stops condensation from forming again.

Keeping your system well-maintained is key to preventing damage to your home from leaking water.

How much does it cost to fix Aircon Condensation?

Fixing aircon condensation varies in cost, depending on the solution you choose. From DIY methods to professional services, it’s essential to understand the range to budget accurately.

Method Cost (SGD) Details
DIY Fixes $0 – $50 Cleaning filters and checking pipes can be free if you do it yourself. You might need to buy basic tools if you don’t have them.
Professional Inspection $80 – $150 A thorough check by a technician to identify the cause of condensation. Price varies by complexity.
Part Replacement $100 – $400 Cost of replacing parts like drainage tubes or cooling coils. Depends on the aircon model.
Chemical Overhaul $150 – $600 A complete cleaning and refurbishment service for severe cases. The higher end applies to larger units or extensive damage.
Weatherproof Fittings $50 – $200 Installing covers or insulation to protect against weather-related condensation.

Billy Aircon specialises in handling these issues efficiently. With experienced technicians and a 24/7 emergency team, they offer reliable solutions across Singapore. Their services ensure your aircon runs smoothly, preventing future condensation problems.

Need help with aircon condensation? Get in touch at [email protected] for expert assistance and fair pricing.


1. What causes aircon condensation?

Air moving over cold coils gets cool, and drops water… that’s your condensation.

2. Is a lot of condensation from my aircon bad?

Yes, too much can mean trouble—like leaks or system issues.

3. How can I reduce aircon condensation?

Keep it clean, check airflow, and maybe get a pro to peek at it.

4. Can aircon condensation damage my home?

Sure can… lead to mold, and water damage if you’re not careful.

5. Should I worry about the water dripping outside from my aircon unit?

No worries—it’s normal for units to drip a bit outside.