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Ceiling cassette and ductable AC units concealed within a commercial false ceiling
Service · Commercial & Ductable Solutions

Concealed cooling for commercial spaces — no visible units, no compromise on comfort.

Ductable and cassette systems, heat-load sized and duct-balanced for offices, retail and hospitality fit-outs — a finished ceiling with even airflow in every corner, not just the one under the vent.

Overview

Cooling that disappears into the ceiling, not the budget

Commercial fit-outs rarely have room for a wall full of indoor units. A ductable or cassette system moves the equipment above the false ceiling, delivering conditioned air through a network of ducts and diffusers so the room below stays clean, uninterrupted and on-brand.

We size every system against your actual floor plate — glazing, occupancy, equipment load and partition layout — then design duct runs and diffuser positions so airflow reaches every workstation and corner table, not just the space closest to the unit.

  • Vent-free ceiling finish, no visible indoor units in the room
  • One system, multiple rooms or zones from a single outdoor unit
  • Heat-load sized and duct-balanced before installation begins
Concealed ductable AC installation with balanced duct runs across a commercial ceiling
Applications

Where concealed systems earn their keep

Six commercial settings where a ductable or cassette layout beats a wall of split units.

Open-plan corporate office with a concealed ductable AC system

Open-Plan Offices

Even airflow across large floor plates and workstation clusters, with zoned control for cabins and meeting rooms.

Retail showroom cooled by a concealed commercial AC system

Retail Showrooms

A clean ceiling that keeps the focus on merchandising, with cooling capacity matched to footfall and glazing.

Ceiling cassette AC unit installed in a restaurant dining area

Restaurants & QSR

Cassette units sized around kitchen heat load and seating capacity, without eating into low-height dining ceilings.

Hospitality lounge cooled by a concealed ductable system

Boutique Hotels & Hospitality

Quiet, concealed comfort across lobbies, function rooms and guest corridors, zoned independently by area.

Bank branch interior cooled by a commercial ductable AC system

Banking & Corporate Branches

Consistent temperature across teller floors and back-offices, installed around live operating hours.

Classroom cooled by a concealed ductable AC installation

Educational Institutions

Quiet operation for classrooms and auditoriums, sized for occupancy swings between sessions and holidays.

Key features

What makes a ductable install worth the ceiling depth

Concealed, vent-free ceiling

Only slim diffusers are visible — the unit and ducting stay out of sight above the false ceiling.

Balanced duct design

Duct sizing and diffuser placement calculated so every zone gets even airflow, not just the nearest one.

Zoned temperature control

Motorised dampers and independent thermostats let different areas run at different set points.

Low-noise operation

The compressor and blower sit above the ceiling void, so the room hears airflow, not machinery.

Industries we serve

Concealed HVAC across every commercial building type

Commercial Buildings
Offices
Hotels
Hospitals
Manufacturing Units
Warehouses
Shopping Malls
Educational Institutions
Restaurants
Residential Projects (where applicable)
From the project gallery

Commercial & ductable installations we've completed

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Our process

From site inspection to ongoing maintenance

Seven steps — the same accountable team from the first site visit to the annual service call.

Step 01

Site Inspection

We measure the floor plate, check ceiling void depth and confirm outdoor unit and drainage routes.

Step 02

Consultation

We talk through ductable vs. cassette trade-offs for your space and budget, in plain language.

Step 03

Design

Heat-load calculation, duct routing and diffuser placement finalised before anything is ordered.

Step 04

Installation

In-house technicians mount the unit, run ducting and diffusers, and complete electrical and drainage work.

Step 05

Testing

Airflow at every diffuser, gas pressure and cooling performance measured and logged before sign-off.

Step 06

Handover

The system is demonstrated zone by zone, with the duct layout and controls explained to your team.

Step 07

Maintenance

Scheduled filter, coil and duct checks under AMC, timed around your operating hours.

Step 01

Site Inspection

We measure the floor plate, check ceiling void depth and confirm outdoor unit and drainage routes.

Step 02

Consultation

We talk through ductable vs. cassette trade-offs for your space and budget, in plain language.

Step 03

Design

Heat-load calculation, duct routing and diffuser placement finalised before anything is ordered.

Step 04

Installation

In-house technicians mount the unit, run ducting and diffusers, and complete electrical and drainage work.

Step 05

Testing

Airflow at every diffuser, gas pressure and cooling performance measured and logged before sign-off.

Step 06

Handover

The system is demonstrated zone by zone, with the duct layout and controls explained to your team.

Step 07

Maintenance

Scheduled filter, coil and duct checks under AMC, timed around your operating hours.

See how this fits our company-wide process →

Why choose Balaji Enterprises

Numbers we can actually stand behind

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FAQ

Common questions about commercial & ductable solutions

What's the difference between a ductable and a cassette AC system?

A ductable unit sits fully above the false ceiling and delivers air through a network of ducts and diffusers, so nothing is visible in the room except slim grilles. A cassette unit is mounted flush in the ceiling tile itself, with the unit's own four-way airflow visible at that one point. Ductable suits larger, irregular or partitioned floor plates; cassette suits single rooms where a duct run isn't justified.

Is a false ceiling required for a ductable AC installation?

Yes — the unit, ducting and diffusers all sit within the ceiling void, so a false ceiling with enough depth (typically 250-300mm) is required. We confirm the available void height during the site survey before recommending ductable over cassette or split.

How do you size a ductable system for a commercial space?

We run a full heat-load calculation against your floor plate, glazing, occupancy and equipment load, then design duct runs and diffuser placement to match — the same process we use for layout & design work, applied specifically to concealed systems.

Can a single ductable unit cool multiple rooms?

Yes — that's the main advantage over multiple splits. One indoor unit can serve several rooms or zones through a branched duct network, often with motorised dampers so individual areas can be adjusted independently.

How much maintenance does a concealed ductable system need?

Filters and coils still need scheduled cleaning, and duct interiors benefit from periodic inspection, but because the unit sits above the ceiling, servicing is scheduled around your operating hours rather than disrupting the room below. We cover this under our standard servicing and AMC plans.

Do ductable systems cost more to run than split ACs?

Running cost comes down to correct sizing and duct design, not the format itself. A well-designed ductable system serving several rooms from one compressor is often more efficient than an equivalent number of individual splits, because capacity is matched to actual combined load instead of oversized per room.

Can you retrofit ductable AC into an existing commercial fit-out?

In most cases, yes, provided there's usable ceiling void and a viable route for the outdoor unit and drainage. We assess this on site — sometimes a cassette or high-wall split is the more practical retrofit where ceiling depth is limited.

Which brands do you install ductable and cassette systems from?

We're authorised across 12 brands for ductable and cassette equipment, including Daikin, Mitsubishi Electric, Hitachi, Voltas, Blue Star, Carrier, LG, Panasonic, Samsung, O General, Godrej and Mitsubishi Heavy Industries.

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Before and after a ductable fit-out

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