Shop & Restaurant Aircon
Cassette vs Ducted vs Ceiling-Exposed (2026)

The three ceiling options in plain terms

Commercial spaces rarely use wall splits, because shop walls are taken by shelving, signage and glass. ClickBina's ducted and cassette service guide describes what you see from the floor with each type:

• Ceiling cassette — a square or rectangular grille flush in the false ceiling, blowing from all four sides.
• Ceiling-concealed / ducted — only supply diffusers and a separate return-air grille are visible; the unit is hidden in the ceiling void.
• Ceiling-exposed (ceiling-suspended) — a visible box mounted under the ceiling, blowing along it.

Larger premises may instead have an air-handling unit or a VRF system serving many indoor units, which is a design exercise of its own.

Cassette vs ducted vs ceiling-exposed

Start with the ceiling you have

The ceiling often makes the decision. A cassette and a ducted unit both need a false ceiling to sit in, and a ducted system also needs enough depth in the void for the unit, the ducts and the return path. Many cafes and shops now leave the slab exposed and painted, which rules those two out unless you add a bulkhead; a ceiling-exposed unit or exposed ducting is the usual answer there.

ClickBina's aircon installation cost guide notes that a cassette costs more to install because of the ceiling access and the heavier unit, and needs a false ceiling to house it. Plan the ceiling and the aircon together at fit-out stage rather than cutting a finished ceiling later.

Restaurants: heat, grease and the kitchen

Dining rooms next to an open or semi-open kitchen are the hardest spaces to cool. Heat from the cookline, people coming and going, and doors opening all add load, and the kitchen's exhaust pulls conditioned air out of the dining room if there is no make-up air. Grease in the air also clogs indoor unit filters and coils much faster than in a shop, so place units away from the kitchen pass and plan for more frequent cleaning.

Do not rely on the dining aircon to fix a hot, smoky kitchen. That is an exhaust and make-up air problem; our kitchen exhaust ducting guide covers it.

Shops, salons and showrooms

In retail the priorities are even coverage across the floor, a clean ceiling line and low noise. A cassette grid gives even air on an open floor; ducted units suit a design-led interior where the ceiling is part of the look, or a long narrow shoplot where diffusers can be spread along the length. Keep units away from shopfront glass doors, where the air simply escapes, and away from display lighting that adds heat under it.

Salons and clinics add chemical smells or treatment rooms, which may need separate zones and fresh air rather than one large unit.

Mall units and landlord rules

In a mall, the landlord's fit-out manual usually decides much of this: whether the unit is served by the mall's own system or you install your own, where outdoor units may go, where condensate may drain and what the ceiling must look like. Read the tenancy design criteria before choosing equipment, and ask the landlord what the unit's existing provision is. Shoplots are simpler, but outdoor unit positions still need the owner's agreement, and sometimes the local council's.

Drainage, noise and outdoor units

• Condensate — cassettes and concealed units usually drain through a small pump; a failed pump overflows into the ceiling void. Our condensate pump guide explains the checks.
• Noise — ask for the indoor unit's noise level on the datasheet; quiet dining and treatment rooms need it most.
• Outdoor units — need air to breathe and a safe way to reach them for servicing; crowded back lanes and closed yards cut performance.
• Copper runs — long pipe runs from front-of-house to a rear yard add cost per foot.

Sizing: why a survey beats a rule of thumb

Home sizing rules do not transfer well to commercial space. A restaurant's load depends on the kitchen, the number of covers and how often doors open; a shop's on glazing, lighting and footfall. Use ClickBina's aircon BTU calculator for a first idea, then have the space surveyed. Several smaller units also give you zoning, so part of the space can be switched off when quiet, and one failure does not leave the whole floor without cooling.

What the options cost

These are ClickBina's published ranges (indicative 2026, Klang Valley). Ducted and larger systems are priced after a survey.

Running costs matter as much as the install: a restaurant cassette that is cleaned too rarely loses cooling and drips. Budget for a servicing routine from the day it opens.

How ClickBina can help

WhatsApp us your job details for a quote: the floor area, whether there is a false ceiling, the type of business and any landlord requirements. If existing units are not cooling, ClickBina's aircon diagnostic is RM120 – RM400. ClickBina is an experienced KL & Selangor contractor for whole-house refurbishment and trade coordination. We reply within the hour, the price we agree is a flat price with no hidden charges, and a site visit is RM150, waived if you go ahead.

Sources & methodology

• ClickBina ducted and cassette aircon service guide — what each ceiling type looks like, condensate pumps, commercial servicing prices.
• ClickBina aircon types guide — cassette and ducted unit and installation prices.
• ClickBina aircon installation cost guide — cassette labour, copper per foot, false-ceiling requirement.

How we estimated prices: every RM figure on this page is quoted unchanged from the ClickBina guides named above; they are indicative Klang Valley ranges for 2026, not a quote for your premises.