Looking for cheap aluminium windows in Cape Town? You’re not alone. Whether you’re building a backyard flat, upgrading a bathroom window, or just trying to save on renovations — aluminium windows offer strength, style, and affordability. But how cheap is “cheap”?
In this guide, we break down real market prices, tier-wise options, and how to make sure you’re not overpaying — with tips straight from Cape Town locals and Reddit discussions.
1: What Counts as a “Cheap” Aluminium Window in Cape Town?
Let’s define “cheap” before the suppliers throw shade.
A standard aluminium window (about 900mm x 900mm or 3ft x 3ft) in Cape Town falls into 3 price tiers:
| Category | Price Range | Features |
|---|---|---|
| Super Cheap (Bare) | R900 – R1,300 | Standard Glass, No powder coating, standard frame, no sealing* |
| Budget Coated | R1,300 – R2,500 | Powder coated, single glazed, basic sealing |
| Entry-Level Standard | R1,800 – R3,500 | Coated frame, rubber gaskets, key lock, better glass |
💬 “I paid R3,300 for an aluminium window, including removal of the old frame.” — Reddit user from Cape Town
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2: Where Can You Buy Cheap Aluminium Windows in Cape Town?
Here are 3 reliable channels:
- Direct from Manufacturers:
– Look for local fabricators in Montague Gardens, Ottery, or Blackheath.
– Negotiate if you’re buying in bulk. - Builders Warehouse / Leroy Merlin:
– Standard-sized top/side-hung windows available off-the-shelf.
– Prices are fixed but quality is decent. - Online Marketplaces (Gumtree, Takealot):
– Sometimes cheaper, but quality + delivery may vary.
– Always double-check sizing and glass thickness.
3: Installation Costs in Cape Town
A lot of people forget this, but it’s a big part of the final cost.
- Basic installation: R3,700 – R4,200
- Removal of old wooden window: +R300 – R800 extra
- Custom frame fit or flyscreen add-on: May increase total by 10–15%
👉 Always ask your installer: “Does this include sealing, cleaning, and disposal?”
4: How to Save Money (Without Regretting It Later)
- Go for standard sizes – custom sizes = custom cost
- Skip the coating only if it’s indoors – outside = coat mandatory
- Ask for leftover stock – some shops offer 10–15% off
- Group buy with neighbors – same model = supplier discount
- Compare 3 quotes minimum – don’t fall for the first price
5: Is Aluminium Worth It Over uPVC or Wood?
| Material | Pros | Cons |
|---|---|---|
| Aluminium | Durable, lightweight, modern look | Can oxidize if uncoated |
| uPVC | Great insulation | Can warp under Cape Town heat |
| Wood | Natural feel, customizable | High maintenance, termites 😬 |
For Cape Town’s coastal climate — aluminium wins for long-term value, especially if powder coated.
FAQs
Q: Can I buy and install myself?
Yes, but be super accurate with measurements. Misalign = disaster.
Q: Is double glazing common in Cape Town?
Not really for budget builds. But can be requested for energy efficiency.
Q: What thickness glass is standard?
4mm to 5mm single glazed is normal for cheap ranges.
✅ Final Take
Cape Town homeowners and landlords — if you’re on a tight budget but still want something solid and secure, cheap aluminium windows offer the best bang for your buck. But don’t be fooled by low price tags. Ask the right questions, compare quotes, and remember: sometimes cheap becomes expensive if it leaks, warps, or rusts.
Aluminium is still king — just pick your battles wisely 👑









