Rosebery's former industrial streets are now full of modern townhouses, many over three storeys: garage below, living in the middle and bedrooms on top. Heat rises through the stairwell, so the top floor is always the hottest.
Updated October 2026
Air conditioning in Rosebery townhouses has to deal with three floors and an open stairwell. Warm air rises to the bedrooms while cool air sinks to the living level, so one thermostat never suits everyone. Separate zones or units for each level, sized for its own heat load, keep the whole home comfortable. Alpha & Omega has installed systems in Sydney's multi-level homes since 1989.
Every floor behaves differently.
| Level | Typical issue | Usual solution |
|---|---|---|
| Top floor bedrooms | Hottest, under the roof, collects rising heat | Dedicated zone or splits with extra capacity Splits → |
| Middle living level | Open plan with large glass doors | A zone or high-capacity split sized for the glass Ducted → |
| Ground floor or study | Often cooler, sometimes unused | Its own control so it can stay off Multi-split → |
Simple habits that help your system.
For townhouses, apartments and converted warehouses.
Some imbalance is normal, but these suggest a problem.
Book a check if:
Heat rises through the stairwell and the roof absorbs sun, so the top floor gains far more heat than the levels below.
It can with proper zoning and enough capacity, though separate units for the top floor often work better.
Yes. Indoor units on each level connect to one outdoor unit, each with its own control.
Often on a roof terrace, balcony or in the garage area, depending on the design and strata rules.
Use separate controls per level and avoid overcooling the living floor.
Yes. Townhouse work is covered by ARC licence AU54289 and NSW contractor licence 329810C.
Around Green Square and Botany Road.
Book a licensed technician to plan comfort for all three floors. You will have a fixed price before any work.
*Call-out, travel and quote visit fees can vary depending on the job and where you are. We'll confirm any costs with you when you book, before any work starts.
Licensed local technicians and an Authorised Daikin Specialist Dealer across Sydney, backed by a lifetime workmanship warranty.
Air Conditioning Sutherland Shire
Air Conditioning Eastern Suburbs
Direct Line: 1300 156 466
Licence: ARC Lic #AU54289 | NSW Contractor #329810C
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