Aircon Servicing in Yio Chu Kang and Sembawang Hills for Landed Homes
Maintenance contracts and bulk servicing for homes with many units, including ceiling cassette and concealed ducted systems. Bulk prices from 7 units, a fixed quote first, and a 90-day workmanship warranty.
- Bulk pricing from 7 units
- Cassette and ducted units serviced
- 90-day workmanship warranty
Usual arrival
Within 90 min
via the CTE, subject to availability
4.0/5 66 Google reviews (Cool Earth Aircon)
Same-day slots usual arrival within 90 min, subject to availability
4,560+ units serviced since 2007
90-day workmanship warranty
Aircon Trouble in Yio Chu Kang and Sembawang Hills Homes?
Several rooms warming up at once in older Sembawang Hills houses
What you notice: Two or three bedrooms lose cooling in the same week, or a ceiling cassette in the living room starts dripping.
Why it happens here: Many houses in this 1950s estate have been extended or rebuilt, often with a unit in every room and condensers on the roof or in a side yard where leaves and dust collect. Heat records like 2025's hottest June and November keep every unit running longer.
What we do: A maintenance contract visit covers every indoor unit, each outdoor condenser and the cassette drain pumps on one schedule, with the brackets checked while we are up there.
Bulk Servicing and Contracts for Multi-Unit Houses
Yio Chu Kang and Sembawang Hills are mostly landed homes and small condos along Yio Chu Kang Road and Upper Thomson Road. Homes here tend to have more units per house, and ceiling cassette and concealed ducted units are more common than in HDB flats, so we plan each visit around the number and type of units.
Aircon Annual Maintenance Contract
Four servicing visits a year with priority booking, at a lower total price than four single visits.
Deep clean on the wall Aircon Chemical Wash
On-the-wall deep clean of the evaporator coil, blower wheel and drain parts for units that still cool poorly or smell after normal servicing.
Commercial Aircon Servicing
Scheduled servicing for offices and shops: wall-mounted, ceiling cassette and concealed ducted units, done around business hours.
The Jobs We Do Most Often Here
Maintenance contracts. With many units, it is easy to lose track of which were last serviced. A maintenance contract books four visits a year with priority booking. It starts from S$200 a year for 2 units, and larger homes are quoted by unit count.
Bulk servicing. Homes with many units get the bulk rate. General servicing is S$100 for 5 units and S$115 for 6. From 7 to 9 units it is S$18 per unit, and 10 or more units are S$16 per unit. Cassette and ducted units are quoted with the rest of the home before the visit.
Chemical wash. When a unit smells musty or cools weakly even after servicing, a chemical wash from S$80 per unit cleans the coil, blower wheel and drain parts with the unit in place.
Cassette and ducted servicing. The same scheduled approach we use for commercial servicing of cassette and ducted units in offices also suits landed homes with these systems.
See every price on the price list.
How We Plan a Visit to a Landed Home
Five steps, and the price is agreed at step two.
- 1
Message us
WhatsApp or call with the number of units, the problem and your Ang Mo Kio address.
- 2
Get a fixed quote
We send a fixed quote and you pick a time slot that suits you.
- 3
Technician checks first
The technician arrives, checks the units and confirms the work before starting.
- 4
Job done and tested
The work is done, the area is cleaned up, and each unit is tested.
- 5
Pay after the job
You pay once you're happy, and your 90-day workmanship warranty starts.
Many Units? Get One Fixed Quote for the Whole House
Fixed quote before any work, no callout fee, and a 90-day workmanship warranty. If the same fault comes back, we return and fix it at no extra charge.
Why Landed Homes in Yio Chu Kang Book Us
- Published bulk prices: S$18 per unit for 7 to 9 units and S$16 per unit for 10 or more
- We service ceiling cassette, concealed ducted and wall-mounted units in one visit
- Maintenance contracts with priority booking so every unit stays on schedule
- Fixed quote before any work starts, with no callout fee
- 90-day workmanship warranty, backed by Cool Earth Aircon since 2007
What Yio Chu Kang & Sembawang Hills customers say
Cool Earth Aircon holds a 4.0 Google rating from 66 reviews.
"We have six units at home in Sembawang Hills, including two cassettes. The contract means I no longer have to remember to book."
"Three units in our Teck Ghee flat, done in one evening after work. The price on WhatsApp was the price I paid."
"The bedroom unit smelled sour for months. After the overhaul the smell is gone and it cools properly again. He showed me the sludge in the drain pan."
Servicing Cassette, Ducted and Wall Units in Sembawang Hills
Yio Chu Kang and Sembawang Hills are where Ang Mo Kio turns landed. Sembawang Hills Estate grew out of 1950s rubber land, and the terraces and semi-detached homes off Upper Thomson Road and Yio Chu Kang Road look nothing like the HDB blocks a few streets away.
A house here often has eight or more units, with ceiling cassettes in the living and dining areas and condensers on the roof or in a side yard. In a year like 2025, with Singapore's hottest June and November on record, those units get little rest, and a dusty roof condenser can cut cooling to several rooms at once.
We plan each visit around the house: how many units, which are cassette or ducted, and where the outdoor units sit. Homes near Sembawang Hills Food Centre or Yio Chu Kang MRT are a short drive off the CTE, and bigger houses get a longer slot or two technicians.
Landed Homes, Small Condos and Many Units per House
A typical landed home here has more units than an HDB flat, often one in every bedroom plus the living and dining areas, and sometimes a unit in a study or a home office.
The unit types are also different:
- Ceiling cassette units sit flush in the ceiling and blow air four ways. They need a ladder, a clean of the filter and coil from below, and a careful check of the drain pump and drain pan.
- Concealed ducted units hide above the ceiling and push air through ducts to grilles. The filter and return grille need regular cleaning, and access is usually through a ceiling hatch.
- Wall-mounted split units are still common in bedrooms and are serviced the same way as in a flat.
Multi-unit homes often have more than one outdoor unit, sometimes on the roof or in a side yard. We check each one during the visit. Small condos here are serviced the same way as condos elsewhere, so let us know if your management office needs the technician registered.
With so many units in one home, the same few problems come up again and again. Guest rooms and studies that are rarely used still grow mould in Singapore's humid air, so they should not be skipped when the rest of the house is serviced. Cassette units in living and dining areas pull in more dust and cooking oil than bedroom units, so their filters and coils clog faster. And when the outdoor units sit in a side yard or on the roof, leaves and dirt on the condenser coil cut cooling across several rooms at once. A visit that covers every unit, indoor and outdoor, on a regular schedule is the simplest way to keep the whole house cool.
Getting to Yio Chu Kang and Sembawang Hills
Our office is in Simei. Technicians leave the Central Expressway (CTE) at Yio Chu Kang Road and usually reach homes here within 90 minutes of a confirmed booking.
Most homes are off Yio Chu Kang Road, along Upper Thomson Road or in the streets around the Yio Chu Kang MRT area. For landed homes, it helps to tell us when you book:
- How many units there are in total, and which rooms they are in
- Which units are wall-mounted, ceiling cassette or concealed ducted
- Where the outdoor units are (roof, side yard, ledge) and whether a ladder is needed
- Whether there is space to park outside the gate
A home with eight or ten units takes longer than a three-unit flat, so we book a longer slot or send two technicians. Weekend slots fill first, so book a few days ahead for a Saturday or Sunday visit.
Map shows the area we serve. Our office is in Simei, and technicians come to you.
Yio Chu Kang and Sembawang Hills Aircon Servicing FAQs
How fast can you get to Yio Chu Kang or Sembawang Hills?
Technicians leave the CTE at Yio Chu Kang Road and usually arrive within 90 minutes of a confirmed booking. Houses with many units are best booked a day or two ahead so we can hold a longer slot.
How much is servicing for a landed home with 8 units?
From 7 to 9 units, general servicing is S$18 per unit, so 8 units come to S$144. Ten or more units drop to S$16 each, and the total is confirmed in writing before work begins.
Do rooftop and side-yard outdoor units get checked too?
Yes. Many houses around Upper Thomson Road have condensers on the roof or in a side yard, where leaves collect on the coil. We clean each outdoor unit and look over its brackets, which BCA asks owners to keep in safe condition.
How long does servicing take for a home with many units?
It depends on the number and type of units. Cassette and ducted units take longer than wall-mounted ones. For larger homes we book a longer slot or send two technicians, and we tell you the expected time when we quote.
Do rarely used rooms still need servicing?
Yes, though less often. Mould can still grow inside idle units because Singapore's air is humid all year. Including guest rooms and studies in the same visit costs less per unit under bulk pricing than booking them separately later.
Do you service small condos in Sembawang Hills?
Yes. Small condos off Upper Thomson Road are serviced the same way as houses. If the management office asks for contractors to be registered, arrange it before the visit or tell us the process when you book.
Is a maintenance contract a good idea for a landed home?
For a house with eight or more units, usually yes. Four visits a year with priority booking keep every room on schedule, and we price larger homes by unit count so the total stays below four separate bookings.
Helpful guides
How Often Should You Service Your Aircon in a Singapore Home?
For daily-use units in hot, humid Singapore, service every 3 to 4 months. What changes the interval and how a contract keeps you on schedule.
Read guide
How Long Aircon Servicing Takes and How to Prepare Your Home
Typical servicing times for 1 to 4 units, what to clear under each unit, whether you need to be home, and how the clean-up works.
Read guideNearby areas we serve
Our annual maintenance contract and chemical wash services cover every street in Yio Chu Kang & Sembawang Hills, and the same team works in the estates next door.
Book Whole-House Aircon Servicing in Yio Chu Kang and Sembawang Hills
Same-day slots on most days, subject to availability. Usual arrival within 90 minutes of a confirmed booking, by the CTE and Yio Chu Kang Road.