AC service
Cassette, Ducted & VRF Systems
Ceiling cassettes and ducted units are where cleaning gets skipped, because it's awkward and the office is full. We do it after hours, unit by unit, with a log your landlord will accept.
Signs your system is due
Noticing any of these?
You don't need to diagnose it — that's our job. Send a photo or a short video on LINE or WhatsApp and a technician will tell you what you're dealing with before you book.

- Hot spots and complaints at certain desks or tables
- Stained ceiling tiles around a cassette
- Grilles blowing dust or a smell when the system starts in the morning
- Rising electricity costs with the same occupancy
- No service record since the fit-out
How we do it
The CoolRova protocol
Survey & tag
Every indoor and outdoor unit tagged, photographed and numbered — the map your maintenance log is built on.
After-hours clean
Cassette panels and drain pans down, coils and blowers washed in place with capture bags, drains flushed — before open or after close.
Outdoor & refrigerant
Condenser coils washed, pressures and current draw logged per circuit, VRF branch boxes checked.
Log & report
A per-unit log with readings and photos, and a quarterly energy report — filed for your landlord, franchise or auditor.
What's included
- Per-unit tagging and numbered maintenance log
- Cassette, ducted and VRF indoor unit cleaning
- Condenser coil wash and refrigerant check
- After-hours service windows
- Quarterly energy and fault report
Commercial maintenance contracts
Scheduled service, per-unit logs and an energy report — one invoice across all branches. Quoted after a free survey.
Request a site surveyGood to know
Common questions
Can you work while we're open?
We can, but after hours is faster and cleaner — no desks to cover and no customers under a ladder. Most clients give us a window before open or after close.
How is a commercial site priced?
Per unit, after a free survey — a fixed price per visit in writing. Restaurants and gyms usually need quarterly; offices every 6 months.
Do you handle VRF and chillers?
VRF systems yes, including branch boxes and controls. Small chillers and AHUs are surveyed case by case.
Free guides from our technicians
Other things we do
Book your cassette, ducted & vrf
Fixed price up front, confirmation within 5 minutes, and a photo report when it's done.