Tong Lau AC Cleaning: Narrow Stairs, Old Frames and Drainage
Assess walk-up access, narrow stairs, ageing window frames, rear-lane units and old drains before cleaning in a tong lau or older building.
When this service is suitable
Constraints in older buildings often come from the building fabric rather than dirt. Floor, lift, frame, drain outlet and outdoor-unit photos help separate cleanable build-up from structural water ingress or ageing components.
- Confirm walk-up floor and equipment-carrying distance
- Record existing marks on old frames, timber and walls
- Distinguish drain blockage from ageing pipes or facade ingress
Stairs and Flat Access
Tong lau staircases may be narrow and have no lift.
- Provide the floor, stair width and corner photos
- Keep entrances, corridors and verandas clear
- Carry equipment in stages without blocking common stairs
- Keep gates and neighbours' access unobstructed
Old Frame and Wall Protection
Record cracks, corrosion and water marks together before work.
- Inspect visible window-unit support and frame condition
- Protect fragile timber, plaster and old wallpaper
- Do not disturb structural items outside cleaning scope
- Pause if support or wiring raises a safety concern
Drainage Boundaries
Clearing an accessible drain does not repair building pipes or facades.
- Test visible drainage direction and joints
- Record existing stains and drip locations
- Assess concealed, split or ageing drains separately
- Exclude facade ingress and common pipes from cleaning follow-up
Price and quote factors
- Walk-up floor and equipment handling
- Window or split unit and old-frame condition
- Drain access and need for separate inspection
Frequently asked questions
Does a walk-up building affect the booking?
It affects handling time and equipment choice. Provide the floor and stair photos so arrangements can be confirmed first.
Can cleaning fix water entering through a wall?
No. Cleaning addresses unit build-up and accessible drains; facade, waterproofing or common-pipe issues need the relevant specialist.
Can an old window unit be too fragile to clean?
The technician first checks operation and visible condition. If the case, support, wiring or parts are too fragile, risks are explained and work may not proceed.
Related services
- Window and Split AC Cleaning — Cleaning and follow-up scope
- AC Fault Inspection — For ageing or non-starting equipment
- Why AC Units Leak — Separate drainage from other causes