Living in an HDB flat in Singapore means dealing with windows that face relentless tropical conditions — high humidity, frequent rain, airborne dust from nearby construction, and the fine particulate that settles on every surface. Over time, HDB windows accumulate grime, mould, mineral deposits, and water staining that ordinary wiping simply cannot remove.…
Whether you live in a 2-room, 3-room, 4-room, 5-room, executive flat, or maisonette, our team has the equipment and expertise to clean every window in your home — inside and out — without putting anyone at risk.
Why HDB Windows Need Professional Cleaning
Many HDB residents attempt to clean their own windows, but there are compelling reasons to leave this job to trained professionals.
Safety Concerns at Height
Most HDB flats sit between 4 and 40 storeys above ground. Leaning out of casement windows or reaching around sliding panels to wipe the exterior surface is dangerous — every year in Singapore, falls from height during household cleaning result in serious injuries. Professional window cleaners use safe methods and specialised equipment to reach exterior glass without risk.
Hard-to-Reach Exterior Surfaces
HDB windows are designed for ventilation, not easy cleaning access. Casement windows swing outward, making it nearly impossible to clean the outer pane from inside. Service yard and kitchen windows often face narrow light wells or corridors where reach is limited. Our technicians have the tools and training to access every surface safely.
Tropical Grime Build-Up
Singapore’s tropical climate creates a unique set of challenges for window cleanliness. Constant humidity encourages mould and algae growth along window frames and seals. Rain leaves behind mineral deposits that harden into white water stains over time. Airborne dust from nearby BTO construction sites and road works coats exterior glass with a fine gritty layer. These deposits bond to the glass surface and cannot be removed with a standard cloth and household cleaner.
Post-Renovation Residue
If you have recently renovated your HDB flat, your windows may be covered in cement splatter, grout haze, paint overspray, or adhesive residue left behind by contractors. This type of contamination requires specialist cleaning techniques to remove without scratching the glass. For severe post-renovation damage, see our dedicated post-renovation glass cleaning service.
Our HDB Window Cleaning Services
We offer a comprehensive window cleaning service tailored to HDB flats of every configuration. Whether your flat has sliding windows, casement windows, or a combination, we clean them all.
Interior Window Cleaning
Our interior cleaning covers every component of your windows:
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All window panes — both fixed and operable panels, cleaned to a streak-free finish
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Window tracks and channels — removal of accumulated dust, debris, dead insects, and grime that block smooth operation
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Window frames — wiped down and cleaned of mould, discolouration, and surface dirt
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Grilles and safety grilles — cleaned between bars where dust collects heavily
Exterior Window Cleaning
Exterior HDB window cleaning requires care and the right equipment. We use our water-fed pole system where building geometry allows access from ground level or adjacent corridors, delivering purified water to the glass surface for a chemical-free, streak-free clean. For windows that cannot be reached with poles, our technicians use professional squeegee techniques from inside, working through open casement or sliding panels to clean the outer pane safely.
Sliding Window Cleaning
Sliding windows are the most common type in older HDB flats. We clean both the inner and outer panes by carefully sliding panels to access all surfaces, and we clear the bottom track of debris so your windows glide smoothly again.
Casement Window Cleaning
Casement windows — the type that swing outward on hinges — are standard in newer BTO flats. These are notoriously difficult to clean on the exterior side because the outer pane faces away from you when the window is open. Our technicians clean both sides thoroughly using safe reach-and-clean methods, without leaning out of the window.
Service Yard and Kitchen Window Cleaning
Service yard and kitchen windows are exposed to cooking grease, moisture, and lint from laundry drying. These windows tend to accumulate a sticky film that traps dust and turns yellow over time. We degrease, clean, and restore these windows as part of our full-flat service, including the window grilles and louvre panels commonly found in service yards.
Water-Fed Pole System for HDB Window Cleaning
One of the safest and most effective methods we use for exterior HDB window cleaning is the water-fed pole system. This technique is widely used by professional window cleaners across the UK, Australia, and increasingly in Singapore for good reason — it delivers superior results without putting anyone in danger.
How It Works
Our water-fed pole system uses a multi-stage filtration unit that purifies ordinary tap water through reverse osmosis and deionisation filters, producing ultra-pure water with zero dissolved minerals. This purified water is pumped through lightweight telescopic carbon-fibre poles fitted with soft brush heads at the tip. The brush agitates dirt and grime on the glass surface while the purified water rinses it away.
Because the water contains no minerals, it dries without leaving spots, streaks, or residue — a naturally streak-free finish every time, with no chemicals or detergents needed.
Why It Is Ideal for HDB Flats
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No dangerous rope access required — the pole reaches windows from a safe position at ground level or from an adjacent corridor
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No chemicals — safe for residents, pets, and the environment
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Streak-free results — purified water leaves glass crystal clear as it dries
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Cleans frames and sills simultaneously — the brush head cleans the surrounding frame as well as the glass
For more details on our water-fed pole method and where it can be used, visit our water-fed pole window cleaning page.
HDB Window Cleaning Pricing Guide
Our pricing is transparent and based on flat type. Final pricing depends on the number of windows, level of soiling, and whether exterior cleaning is required. All prices below include interior cleaning of all windows, tracks, frames, and grilles.
| HDB Flat Type | Interior + Exterior | Interior Only |
|---|---|---|
| 2-Room Flexi / Studio | $180 | $100 |
| 3-Room | $240 | $120 |
| 4-Room | $280 | $140 |
| 5-Room | $320 | $160 |
| Executive / Maisonette | $380 | $190 |
| Add-on: Nano Hydrophobic Coating | $85/sqm (min $150) | |
Prices are inclusive of GST. We provide a fixed quote after assessing the number and condition of your windows — no hidden charges. For heavily soiled windows or post-renovation cleaning, a small surcharge may apply.
Nano Hydrophobic Coating Add-On
Want your windows to stay cleaner for longer after we clean them? Ask about our nano hydrophobic glass coating — a liquid polymer treatment applied to clean glass that creates an invisible, water-repelling barrier on the surface.
Once coated, rainwater beads up and rolls off the glass instead of forming flat droplets that leave mineral stains. Dust and airborne grime have less to grip onto, so your windows remain visibly cleaner between professional cleans. The coating is transparent, does not alter the appearance of your glass, and lasts for months depending on exposure.
We recommend our Clean + Coat package — professional window cleaning followed by nano coating application in a single visit. It is the most cost-effective way to keep your HDB windows spotless in Singapore’s tropical climate.
Learn more about the coating technology on our nano hydrophobic glass coating page.
How It Works — 4 Simple Steps
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Book via WhatsApp — Send us a message at +65 9669 3006 with your flat type, location, and a few photos of your windows. We respond within the hour during business hours.
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We assess your windows — Based on your photos and flat details, we provide a fixed-price quote. For complex jobs, we arrange a brief on-site assessment at no charge.
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Professional cleaning — Our trained technicians arrive at the scheduled time with all equipment. We clean every window in your flat — interior and exterior where accessible — leaving streak-free, spotless glass.
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Optional nano coating — After cleaning, we can apply our nano hydrophobic coating to keep your windows cleaner for longer. Just let us know when you book.
Other Glass Services for HDB Homes
Beyond window cleaning, Lion City Glass offers a full range of glass care services for HDB residents:
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Shower screen restoration — remove hardwater stains, limescale, and scratches from bathroom glass
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Water-fed pole window cleaning — our specialist exterior cleaning method for landed homes and accessible HDB blocks
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Nano hydrophobic glass coating — protective coating to keep glass cleaner for longer
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Post-renovation glass cleaning — remove cement, grout, and contractor residue from glass
Book Your HDB Window Cleaning Today
Ready for spotless, streak-free windows? Get in touch with Lion City Glass for a fast, fixed-price quote.
WhatsApp: +65 9669 3006 Call: +65 9669 3006 Email: enquiry@lioncityglass.com.sg
Send us a few photos of your windows and your flat type — we will reply with a quote within the hour. Island-wide service, 7 days a week.