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Why does our strata bin room still smell after it has been cleaned?
Bin rooms generate more strata complaints in Double Bay 2028 than any other common area. Why surface cleaning never fixes it, and what an effective program actually includes.
Bin room odour is almost never on the surfaces being wiped. It is in the floor drain, the grout, the gap under the bin wheels and the residue running down the chute. A bin room program that only hoses the floor and wipes the bins will smell again within 48 hours. Effective programs combine weekly enzyme drain dosing, monthly degreasing, bin rotation and periodic pressure washing where drainage permits.
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Why Double Bay buildings feel it more than most
Double Bay 2028 has an unusual mix of building stock for a suburb its size: 1960s walk-ups on the streets behind Bay Street, boutique mid-rise blocks off Transvaal Avenue, and mixed-use buildings above the Knox Street and Cross Street retail. A large share of them have bin rooms that were designed for a smaller waste stream than the building now produces, sited in a basement or undercroft with limited ventilation and a single floor waste.
Add ground-floor cafes and boutiques sharing a waste bay with residents, and you have a room that is warm, poorly ventilated and receiving food waste seven days a week. That is a maintenance problem, not a cleaning failure — but it is the cleaner who gets the complaint.
What actually causes the smell
In our experience across eastern suburbs buildings, odour traces back to four sources and almost never to the visible surfaces.
- • The floor waste — a dry or unsealed trap lets sewer gas back into the room, and organic residue in the drain body ferments continuously.
- • Grout and porous concrete — years of leachate soaks in and keeps releasing odour long after the floor looks clean.
- • Under the bin wheels — the strip of floor a bin permanently sits on is never washed unless bins are physically moved out.
- • The chute discharge and hopper — residue coats the chute wall above the room and drips down between cleans.
What an effective program includes
The fix is not more frequent wiping. It is a different set of tasks on a stated cycle, written into the common-area scope with a frequency against each line so the committee can see what they are paying for.
- • Weekly enzyme dosing of the floor waste and any adjacent drain, which digests the organic film rather than masking it
- • Bins physically rolled out and the floor beneath them washed, every visit, not just the accessible strip
- • Monthly degrease of the floor and lower wall surfaces with a commercial degreaser and agitation
- • Pressure washing on a quarterly cycle where the room has adequate drainage and the building permits it
- • Chute hopper and discharge area cleaned on the same cycle rather than treated as a separate trade
- • Bins rotated to the kerb and returned on collection day so nothing sits in the room overwhelming a single day of capacity
- • A dated photo of the room in the monthly audit, so the committee can see the standard between meetings
The reporting problem underneath the odour problem
Most strata cleaning complaints in Double Bay are not really complaints about cleanliness. They are complaints about not knowing. An owner walks past a bin room at 6pm on collection day, forms a view, and emails the agent, who has no evidence either way and forwards it to the contractor.
A signed attendance log left in the building and a dated monthly photo set of the lobby, lift, bin room and car park ends that cycle. Agents paste it into the meeting pack; the same owner emails stop arriving. It is a documentation fix as much as a cleaning one.
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Frequently asked questions
Can a neglected bin room be brought back, or does it need rebuilding?
Almost always brought back. A one-off deep clean combining degrease, agitation, pressure wash where drainage allows and drain dosing resolves most Double Bay bin rooms, after which an ongoing program keeps it there. Sealing porous concrete is occasionally worth doing as a separate building works item.
How often should a bin room be serviced?
Most Double Bay buildings need the room attended on every cleaning visit with a fuller wash-out weekly and a degrease monthly. Buildings sharing a waste bay with ground-floor food tenancies generally need the wash-out twice a week.
Who is responsible, the strata cleaner or the building manager?
It should be written down either way. Where a building has a caretaker, we scope with them so our program covers what they do not, rather than both parties assuming the other has the bin room.
Does pressure washing work in every bin room?
No. It requires a functioning floor waste with adequate fall — pressure washing a room that drains poorly just relocates the problem into the corridor. We assess drainage before quoting it.
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