# What Happens During General Aircon Servicing? | Checklist > The full servicing checklist, how long 1 vs 3 units take, what to clear before the technician comes, and when payment and the 90-day warranty start. URL: https://airconservicingmarineparade.com/guide/what-happens-during-general-aircon-servicing/ Last-Modified: 2026-11-11 Aircon Guide # What Happens During General Aircon Servicing? ![Technician on a step ladder servicing a wall-mounted aircon in a Marine Parade living room](/images/featured/technician-on-a-step-ladder-servicing-a-wall-mount.webp) ## The General Servicing Checklist Wondering what is included in aircon servicing? Every general visit covers seven checks on each unit, top to bottom. Our general aircon servicing [/ →](/) follows the same aircon servicing checklist whether you have two units or four. Here is the cleaning side of the job: - **Filter cleaning** to restore airflow - **Evaporator coil check and clean** so the unit cools properly - **Drain line flush** to clear the condensate pipe - **Drain pan check** for sludge or cracks that cause leaks And here are the checks that tell us the unit is healthy: - **Refrigerant pressure check** to spot low gas early - **Thermostat and electrical check** for safe, correct operation - **Airflow and temperature test** at the end to confirm it is cooling That is the full routine on every unit, every visit. You can see exactly what each job costs on our price list [/pricing/ →](/pricing/) . The drain line and drain pan are the two items most owners have never heard of. A choked drain line is a common reason wall-mounted units drip onto the floor or wall, so we never skip it. Between our visits, you can help too. Panasonic Singapore advises cleaning your air filters every two weeks if you run the aircon often or live in a dusty home. It also suggests professional servicing every quarter for daily use, and once a year for lighter use. ![Technician flushing an aircon drain line with a small pump, bucket on the floor](/images/content/technician-flushing-an-aircon-drain-line-with-a-sm.webp) ## How Long Does It Take? How long does aircon servicing take? Expect about 20 to 30 minutes per unit, so most 2 to 4 unit flats take between 40 minutes and an hour and a half. Here is how it usually works out: | Number of units | Typical time | | --- | --- | | 1 unit | Around 20 to 30 minutes | | 3 units | Roughly an hour | | 4 or more units | An hour and a half or more | Very dirty units, hard-to-reach units and units on an awkward ledge take a little longer. We would rather spend the extra ten minutes than rush a drain flush. If a unit needs more than a general service, such as a chemical wash, we will explain it and quote before doing anything extra. Nothing gets added without your say-so. ## What to Clear Before the Technician Comes You do not need to do much, but five minutes of prep saves time on the day: - Clear the floor and furniture directly under each indoor unit - Make sure the outdoor unit or ledge can be reached - Keep pets in another room during the visit - Have someone at home to let the technician in and confirm the work In a typical HDB flat, the outdoor units sit on a service ledge. Check that nothing is stacked in front of the window or door that leads to it. Clear access means less time moving things around and more time on your units. ## Do You Need to Be Home? Yes, someone needs to be home. They let the technician in and confirm the work before it starts. You do not have to watch the whole job. Being there at the start and end lets you ask questions and see the before-and-after for yourself. ## Clean-Up, Testing and Payment A good service ends as tidily as it starts. Drop sheets protect your floors and walls, and we clean up the area before leaving. Each unit is tested to confirm it is cooling properly. Payment comes after the job, not before. There is no callout fee, and you get a fixed quote before any work begins, so there are no surprises. Once the job is done and paid, the 90-day workmanship warranty starts. If the same fault returns within 90 days, we come back and fix it at no extra charge. Ready to book? Check the price list [/pricing/ →](/pricing/) , then book your general aircon servicing [/ →](/) and we will confirm a time that suits you. ## Frequently Asked Questions How long does servicing take for 3 units? A single unit is usually around 20 to 30 minutes; three units typically take an hour or so. The total depends on access and how dirty the units are. Will the job be messy? No. Drop sheets are used under each unit and the area is cleaned up before the technician leaves. When do I pay? After the job, once each unit has been tested. There is no callout fee and you get a fixed quote before work starts. ## Related Guides ### Aircon Servicing Before a Rental Handover: A Guide for Landlords and Tenants Moving in or out? What to service before handover, why job receipts matter, and when a chemical wash is worth doing first. [Aircon Servicing Before a Rental Handover: A Guide for Landlords and Tenants →](/guide/aircon-servicing-before-rental-handover/) ### Aircon Servicing Hidden Charges: What a Fixed Quote Should Include Callout, transport, gas and 'extra dirty' fees explained. Questions to ask before work starts and a red-flag checklist for aircon quotes. [Aircon Servicing Hidden Charges: What a Fixed Quote Should Include →](/guide/aircon-servicing-hidden-charges/) ### What Does an Aircon Workmanship Warranty Cover? Workmanship cover vs parts cover, how a 90-day return-visit promise works, what is usually excluded, and questions to ask any aircon provider. [What Does an Aircon Workmanship Warranty Cover? →](/guide/aircon-workmanship-warranty/) ### DIY Aircon Filter Cleaning vs Professional Servicing How to rinse your aircon filters safely between visits, what DIY cannot reach, and why spraying the coil yourself can cause trouble. [DIY Aircon Filter Cleaning vs Professional Servicing →](/guide/diy-aircon-filter-cleaning-vs-professional-servicing/) ## Learn more about Aircon Servicing Marine Parade Get a fixed quote before any work, with no callout fee and a 90-day workmanship warranty. WhatsApp for a Fixed Quote [https://wa.me/6594273833?text=Hi%2C%20I%20would%20like%20a%20quote%20for%20aircon%20servicing%20in%20Marine%20Parade. →](https://wa.me/6594273833?text=Hi%2C%20I%20would%20like%20a%20quote%20for%20aircon%20servicing%20in%20Marine%20Parade.) See the service [/ →](/)