December 2026 School Holidays: Get Your Serangoon Aircon Serviced Before the Rush
By Brian 6 min read 
The year-end school holidays start in late November, and in many Serangoon homes that means one thing: the aircon runs all day. Kids are home from morning to night. Relatives come over for festive meals. The bedroom units that used to run only at night now run in the afternoon as well.
If your units were last serviced in the middle of the year, they are due now. Here is why late November is the right time to book, what to look out for, and how to plan around the December rush.
Why the School Holidays Are Hard on Your Aircon
During term time, a typical HDB flat in Serangoon Central or Serangoon North runs its bedroom units at night and the living room unit in the evening. During the holidays, the same units can run 12 hours a day or more.
Longer run times expose problems that were hiding at lower use:
- Dirty filters that were “fine” now choke airflow, and the room takes longer to cool.
- Weak cooling that you did not notice at night becomes obvious on a hot afternoon.
- Night-time leaks start, because a half-choked drain line cannot keep up with hours of condensation.
- Musty smells get stronger as mould on the coil and blower wheel gets more moisture to feed on.
Singapore is hot and humid all year, so units here clog faster than the manuals expect. We recommend servicing every 3 to 4 months for daily-use units. If your last service was around June or July, you are already at or past that point.
Quick check before you book
Pull out the filters. If they are grey and furry, the unit is due. If the unit smells musty for a minute at start-up, or cooling is still weak after cleaning the filters, ask about a chemical wash.
Book Early: Evening and Sunday Slots Fill First
Every December, the same thing happens. Families want their units serviced before guests arrive, and most want an evening or a Sunday slot so someone can be home.
We are open 7 days, until 9pm Monday to Saturday and until 8pm on Sunday, and we keep same-day slots in Serangoon, subject to availability. But evening and Sunday slots in December go first. Booking in late November gives you the widest choice of times.
A simple plan:
- This week: check the filters and note any unit that smells, leaks or cools slowly.
- Late November: book a general service for every unit, and mention any problem units.
- Early December: you are done before the busiest weeks, and before family arrives.
Servicing or Chemical Wash? How to Choose
Most units only need a general service. Some need more. Here is how to tell:
| What you notice | What to book | Price |
|---|---|---|
| Dusty filters, slightly weak airflow | General servicing | From S$50 for 1 unit |
| Cooling still weak after a service | Chemical wash | From S$80 per unit |
| Musty smell that keeps coming back | Chemical wash | From S$80 per unit |
| Strong sour smell, black specks, sludge | Chemical overhaul | S$130-S$180 per unit |
| Water dripping onto the wall or bed | Leak check and repair | From S$60 |
General servicing for a typical flat costs S$55 for 2 units, S$70 for 3 and S$85 for 4. Every job gets a fixed quote before work starts, there is no callout fee for Serangoon, and the work carries a 90-day workmanship warranty.
If you are not sure which one you need, our guide on the signs your aircon is due for servicing walks through each symptom. Or just WhatsApp us what the unit is doing, and we will tell you.
Hosting at Year-End? Service the Living Room Unit First
If you are hosting a festive dinner or open house, the living room unit carries the heaviest load. A room full of people, cooking heat from the kitchen and the door opening and closing all push it hard.
Make that unit the priority:
- Get it serviced before the gathering, not after it fails on the day.
- If it has been slow to cool for a while, a chemical wash will help it cope with a full room.
- Clean the filters again a day or two before guests arrive.
Tips to Keep Units Running Through the Holidays
A few small habits make a real difference when units run all day:
- Rinse the filters every 2 weeks during the holidays. It takes 15 minutes per unit and keeps airflow up.
- Close doors and curtains in the afternoon so the unit is not cooling the corridor or fighting the sun.
- Set a sensible temperature. Around 25 degrees is comfortable for most people and much easier on the unit than 18.
- Run fan mode for a few minutes before switching off at night. It helps dry the coil and slows mould.
- Switch off a leaking unit. Catch the drips and book a check. Do not run it over the bed.
Landed Homes and Condos
In Serangoon Garden and Seletar Hills, landed homes often have 6 to 10 units. Holiday guests mean spare rooms come back into use, and units that sat idle for months can smell sour when switched on. Book those rooms in the same visit. For 7 to 9 units, servicing is S$18 per unit, and S$16 per unit for 10 or more.
For condos around Lorong Chuan and Upper Paya Lebar, check whether your management office needs contractor visits booked in advance. Tell us your condo name and we plan the slot around its rules.
Stay on Schedule After the Holidays
Once your units are serviced in late November, the next service falls around February or March. If you would rather not track it, an annual servicing contract books four visits a year with priority slots and costs less than four single visits. Our guide on how often to service your aircon explains the right interval for each room.
Book before the December rush - WhatsApp us or see our aircon servicing prices for Serangoon. Send the number of units, any problems and your address to +65 9427 3833 for a fixed quote.
Book in Serangoon
General aircon servicing from S$50
Fixed quote before work, no callout fee, 90-day workmanship warranty. Open 7 days.
