Here is something we see every few months. A shop or office signs the cheapest aircon maintenance contract they were quoted, feels good about the saving, and two years later calls us because a cassette unit died in the middle of August. When we open it up, the coil looks like it has never met a proper wash. The contract technician had been coming every quarter, spending ten minutes, wiping filters, and leaving. The contract was real. The servicing was not.
So instead of telling you what to pay, let us show you how commercial servicing contracts actually work: what drives the price, what should be inside one, and the red flags that separate a real maintenance programme from a subscription to filter wiping.
Why the cheapest contract is usually the most expensive
A commercial aircon that is properly maintained lasts 10 to 15 years. One that gets surface level servicing dies in 5 to 7, usually in the hottest month, usually with a compressor bill attached, and for an F&B outlet or clinic, usually with lost business on top. The difference between a proper contract and a cheap one might be a few hundred dollars a year. The difference in outcomes is measured in thousands.
That is not an argument for the most expensive quote either. It is an argument for knowing what you are actually buying.
What drives the price of a contract
Unit type matters most. A wall mounted unit takes a fraction of the time a ceiling cassette does. A cassette means working at height, dropping the chassis cover, handling a condensate pump. Ducted units are the most involved of all: concealed above false ceilings with filters and coils that take real time to reach. If a quote prices your ducted units like wall units, that tells you how much time they plan to spend on them.
Then the count and the access. Twenty units in one office level prices differently from twenty units spread across three shophouse floors with ladder access. High ceilings, locked riser access and night-only servicing windows all move the number.
Then the frequency. A quiet office does fine on quarterly servicing. An F&B kitchen area, a salon, a clinic or any space running the aircon 12+ hours daily needs bi-monthly or even monthly attention, because grease and heavy runtime load up coils many times faster. A contractor who quotes a kitchen the same schedule as an office is not planning for your reality.
Then the response terms. What happens when a unit breaks down on a Saturday afternoon? A real commercial contract names a response time. If it is not written down, it does not exist.
What should be inside the contract
At minimum, per visit: filter and blower cleaning, coil inspection and cleaning, drainage flushing and gradient check, gas pressure check, electrical and control check, and a written service report per unit, every visit. The report matters more than most owners think. It is your maintenance history, your warranty evidence, and your early warning system: a slow refrigerant leak or a weakening capacitor shows up in the readings a visit or two before it becomes a breakdown.
Clarify what sits outside the per-visit scope: chemical washes and overhauls when a coil is beyond normal cleaning, parts and replacements, refrigerant top ups, and after hours callouts. None of these being excluded is a problem. All of them being vague is.
The red flags
A per-unit price that only works if the technician skips the coil. No written service reports. No named response time for breakdowns. Long lock-ins with no performance clause. A contractor who never asks what type of units you have or what hours you run them before quoting. And the classic: a quote given over the phone without anyone ever seeing your premises. Commercial servicing priced without a site walkthrough is guesswork, and the gap between the guess and reality always gets recovered from somewhere, usually your coils.
The question nobody asks: should that old unit even be on a contract?
Sometimes we walk a site and find the maintenance contract is faithfully resuscitating units that should have retired years ago. Ten year old commercial units with tired compressors consume dramatically more electricity than current 5-tick systems, and for eligible SMEs the Energy Efficiency Grant can co-fund up to 70 percent of a replacement. In those cases the honest advice is not a better servicing schedule. It is to stop paying to maintain the past. Our commercial cassette and ducted systems are listed with transparent installed pricing if you want to see the numbers.
The checklist to hand any contractor
Before signing anything, ask: What exactly is done per visit, per unit type? Do we get a written report per unit, per visit? What is the response time for breakdowns, in writing? What is excluded, and at what rates? Have you serviced our unit types before, cassettes and ducted included? And will you walk the site before quoting?
Any contractor worth signing answers all six without flinching. It is also, not coincidentally, a description of how we run our own commercial contracts.
Get a real quote, from people who showed up
For hands-on help with this, see our aircon servicing in Singapore page for how we work and what it costs.
We run seven teams across Singapore handling 30+ jobs daily, from single shophouses to multi-floor offices, backed by 25,000+ completed jobs since 2016 and 1,800+ Google reviews. WhatsApp us at +65 8818 5781 with your location and rough unit count, and we will arrange a free walkthrough and a contract quote built on what your premises actually need. If your current contract is fine, we will tell you that too. It has happened before.
