Window & Glass Cost in Singapore: What You'll Actually Pay (2026)
Prices checked October 2026 against the published price lists of 526 contractors listed on Homees, MOM's 2025 wage data and Qanvast's 2026 report. How we price →
Windows are quoted **per window**, supply and install. In 2026, changing an HDB window runs **S$400–S$1,300** depending on type: louvres are cheapest, sliding windows mid-range, casement windows the priciest. Glass works — shower screens, partitions, mirrors — are quoted **per set or per panel**, with a frameless tempered-glass shower screen landing around **S$450–S$780**.The rule you can't skip: HDB windows must be replaced by a BCA-approved window contractor listed in HDB's directory, with a renovation permit. This isn't red tape for its own sake — a poorly fitted window that falls from height can kill someone below. It's the one job where "cheap and unlicensed" is genuinely dangerous.
| Work | Typical cost | Notes |
|---|---|---|
| Casement window | S$500 – S$1,300 | Per window; priciest type |
| Sliding window | S$400 – S$900 | Per window; aluminium |
| Louvre window | S$200 – S$500 | Per window; cheapest |
| Window repair (hardware) | S$80 – S$150 | Hinges, rollers, rivets |
| Frameless tempered shower screen | S$450 – S$780 | Per set, supply + install |
| Aluminium-frame shower screen | S$520 – S$550 | Cheaper, no kerb needed |
Indicative 2026 ranges. Final price depends on window type, glass spec, size and installation.
Window replacement by type
The window style drives the price:
- Louvre: S$200–S$500. Simplest, cheapest — common in kitchens, yards and bathrooms.
- Sliding (aluminium): S$400–S$900. Space-saving, the everyday HDB choice. Panel width can't exceed 1.2m under HDB rules.
- Casement: S$500–S$1,300. Opens outward on hinges for the best ventilation — and the priciest, partly because of the safety hardware (friction stays, stainless steel rivets).
Two things move the number within each type: frame material (aluminium is the cost-effective default; uPVC sits higher) and glass spec. Standard glass is cheapest; laminated costs more; double-glazed is the upgrade worth considering if you live near the MRT line or an expressway — it cuts noise and helps keep the heat out, which can trim your aircon bill.
Repair or replace?
Not every window needs replacing. Basic repairs — hinge adjustments, swapping handles, replacing worn rollers or corroded rivets — start at S$80–S$150 per window. If your casement rivets are rusty or your sliding panel keeps jumping the track, a repair often does the job.
When to replace instead: a 20-year-old window with failed seals won't ever seal or soundproof like a new unit. If your goal is a quieter, cooler home (or you're prepping for a resale inspection), a full replacement is the better long-term spend.
Glass works
The most common residential glass job is the bathroom shower screen, supplied and installed per set:
| Shower screen | Cost (per set) |
|---|---|
| Fixed panel (frameless 10mm) | S$450 – S$500 |
| Sliding (frameless 10mm) | S$680 – S$720 |
| Swing (frameless 10mm) | S$650 – S$720 |
| L-shaped (frameless 10mm) | S$598 – S$780 |
| Aluminium frame + acrylic | S$520 – S$550 |
Go tempered glass — it's up to five times tougher than standard and shatters into blunt pebbles rather than shards. One catch: a frameless screen needs a shower kerb to stop water seeping under it; building one costs about S$300, so an aluminium-frame screen (no kerb needed) can work out cheaper overall in a bathroom without one.
Beyond shower screens, glass contractors also do partitions, glass doors, backsplashes, railings and mirrors — these are custom, quote-by-measurement jobs. A common trick in tight BTO bathrooms: pair a glass screen with a large wall mirror to bounce light and make the space feel twice as big.
The rules (and why they matter)
- BCA-approved contractor, from HDB's directory — mandatory for window replacement. Falling windows are a genuine safety risk.
- Renovation permit required before replacing windows.
- PE endorsement if you're changing the window size (a structural change) — adds cost.
- HDB hardware rules: stainless steel rivets (mandatory since 2005), zinc-casting corner brackets, sliding panels ≤1.2m, safety stoppers, and fixed panels where height/safety requires.
- Maintenance is your responsibility — check your windows every 6 months, especially casement rivets.
Sample budgets
Whole 4-room window replacement (≈5 casement + 1 sliding + 1 louvre):
- Casement 5 @ S$500–S$1,300 ≈ S$2,500–S$6,500
- Sliding + louvre ≈ S$600–S$1,400
- Dismantling + disposal of old windows ≈ S$350–S$1,050
- Total: roughly S$3,450–S$8,950
One bathroom shower screen (L-shaped frameless): around S$598–S$780, plus S$300 if a kerb needs building.
The costs people forget
- Dismantling & disposal of old windows and screens — labour, and you can't dump them at the void deck.
- Shower kerb — about S$300 if your frameless screen needs one.
- PE endorsement — required (and chargeable) if you resize a window opening.
- Soundproof / double-glazed glass — a worthwhile premium near MRT or expressways, but it is a premium.
- Fixed panels — high-rise units may need them to meet height/safety rules.
How to keep the bill sensible
- Repair before you replace where the frame is sound — S$80–S$150 beats a full unit.
- Match glass to need — double-glazing only where noise is a real problem; standard glass elsewhere.
- Aluminium-frame shower screen if you've no kerb — skips the ~S$300 kerb build.
- Always use a BCA-approved contractor — non-negotiable for windows, for safety and compliance.
- Replace windows in one job to share dismantling and transport costs.
Comparing window and glass contractors on Homees.co is the easiest way to line up safe, comparable quotes.
FAQ
How much does it cost to change HDB windows? About S$400–S$1,300 per window in 2026. Louvres are S$200–S$500, sliding windows S$400–S$900, and casement windows S$500–S$1,300. Work must be done by a BCA-approved contractor.
Why are casement windows more expensive than sliding? Casement windows open outward on hinges and rely on safety hardware — friction stays and stainless steel rivets — to hold the leaf securely. That hardware and the more involved install push the price above sliding windows.
Should I repair or replace my window? Repair (S$80–S$150) makes sense for hinges, rollers, handles or corroded rivets on a sound frame. Replace if the window is old with failed seals and you want better soundproofing, sealing or a resale-ready finish.
How much is a glass shower screen in Singapore? A frameless tempered-glass shower screen is about S$450–S$780 per set supplied and installed; an aluminium-frame screen is S$520–S$550. A frameless screen needs a shower kerb (about S$300) if you don't already have one.
Do I need a BCA-approved contractor to change my windows? Yes. HDB requires window replacement to be done by a BCA-approved contractor from its directory, with a renovation permit. It's a safety requirement — badly fitted windows can fall.
Is double-glazed glass worth it? If you live near the MRT, an expressway or a busy road, yes — double-glazing noticeably cuts noise and heat. Elsewhere, standard glass is usually fine and cheaper.
Do I need a permit to change window size? Yes, and changing the size is a structural change that also needs a Professional Engineer (PE) endorsement, which adds to the cost.
Sources
- PropertyGuru — What is the cost of changing HDB windows?
- Ho Ho — HDB casement window prices in Singapore (2026)
- PriceSGD — Cost of changing HDB windows in Singapore (2025)
- Acme Design — HDB window repair cost Singapore (2026)
- Toilet Renovation — Toilet shower screen prices
Prices are indicative market ranges as of 2026 and vary by type, glass spec, size and installation. HDB window replacement must be carried out by a BCA-approved contractor.
