Aluminium doors vs timber doors — when you compare the two, aluminium comes out ahead on upkeep. Choosing the material for your external doors comes down to aluminium versus timber. Both can look beautiful, but they behave very differently over the years — especially in the South African climate. Coetz™ specialises in made-to-order aluminium doors; this guide compares the two honestly so you can decide what suits your home, budget and upkeep appetite.

Quick comparison
| Feature | Aluminium Doors | Timber Doors |
|---|---|---|
| Strength | Very strong; slim frames, large glass | Strong but frames are bulkier |
| Maintenance | Low — no rot, warp or repainting | Higher — regular sealing/varnishing |
| Lifespan | Long; powder-coat finish lasts | Long if well maintained |
| Weather & UV | Excellent for SA sun and coast | Can swell, crack or fade without upkeep |
| Look | Modern, slim, contemporary | Natural warmth and character |
| Cost | Competitive; low lifetime cost | Varies; higher lifetime upkeep |
| Best for | Low-maintenance, modern, large glazing | Traditional or heritage aesthetics |
Strength & slim sightlines
Aluminium is strong for its weight, so frames can be slim while still carrying large glass panels — ideal for light-filled, modern doors. Timber frames need more bulk to achieve the same strength, giving a heavier look that some homeowners love for its character.
Maintenance & the SA climate
This is where the biggest difference shows. Aluminium doesn’t rot, warp or need repainting — a powder-coated finish simply needs an occasional wipe, which suits South Africa’s intense sun and coastal salt air. Timber looks wonderful but needs regular sealing or varnishing and can swell, shrink or crack if that upkeep slips.

Aesthetics
Timber brings natural grain and warmth that’s hard to replicate and can be sanded and refinished to a new colour later. Aluminium offers a clean, contemporary look in a five durable powder-coated finishes. It comes down to the style you’re after and how much maintenance you want to sign up for.
Advantages of aluminium doors
- Very low maintenance — no rot, warp or repainting
- Slim frames and large glass areas
- Excellent durability in sun and coastal conditions
- Powder-coated finishes that hold their colour
- Made to order in your exact size and specification
Advantages of timber doors
- Natural warmth, grain and character
- Can be sanded and refinished over time
- Good inherent thermal insulation
- A classic fit for heritage and traditional homes
Which should you choose?
- Best for low maintenance: aluminium.
- Best for a modern look with big glass: aluminium.
- Best for coastal and high-sun areas: aluminium.
- Best for traditional or heritage character: timber.
- Best long-term value with minimal upkeep: aluminium.
Coetz™ supplies made-to-order aluminium doors in standard sizes and five colours, glazed with 6.38 mm clear laminated safety glass. Send us your requirements for a no-obligation quotation.
Are aluminium doors better than timber doors?
It depends on your priorities. Aluminium wins on low maintenance, slim frames, large glazing and durability in the South African climate. Timber wins on natural warmth and traditional character but needs regular upkeep.
Do aluminium doors need much maintenance?
Very little. A powder-coated aluminium door does not rot, warp or need repainting — an occasional clean is usually all it needs, which is a real advantage in high-sun and coastal areas.
Is timber better for insulation than aluminium?
Timber has good natural thermal insulation. For most South African homes the bigger factors are the glass specification and good sealing, both of which Coetz™ aluminium doors address.
Does Coetz™ supply timber doors?
Coetz™ specialises in made-to-order aluminium windows and doors. This comparison is provided to help you choose the right material for your project.
Shop & related
Aluminium Doors
Sliding, folding, hinged and pivot aluminium doors, made to order.

Still weighing up aluminium doors vs timber doors? Call 010 412 0062 or WhatsApp 076 613 4418 and our team will talk it through. Send us your opening sizes and how the space is used, and we will tell you how aluminium doors vs timber doors works out for your project.
Our team can price both options in aluminium doors vs timber doors for your openings, so you compare real figures.
Aluminium vs uPVC Doors
See how aluminium compares with uPVC too.

Helpful next steps: Aluminium Maintenance Guide · How to Measure Aluminium Doors · Warranty.
Aluminium doors vs timber doors: the key differences
The aluminium doors vs timber doors question comes down to maintenance, cost, thermal performance and looks. Timber doors are warm and traditional but prone to rot and warping, and need regular sealing or painting. Aluminium doors, by contrast, are strong and slim yet never rust or need painting, and modern powder-coated finishes keep their colour for decades. For most South African homes and projects, weighing aluminium doors vs timber doors points to aluminium on running costs and upkeep, while timber keeps a niche for specific tastes and heritage looks.

Cost, maintenance and durability
Upfront, quality timber and aluminium can be broadly comparable, but the long-term picture separates them. Timber typically needs ongoing upkeep; aluminium needs little more than an occasional clean. In coastal and high-rainfall areas the aluminium doors vs timber doors gap widens further in aluminium’s favour. Both can be glazed with 6.38mm laminated safety glass; the frame material is where the real difference lies.
Which should you choose?
Choose aluminium doors for a low-maintenance, rust-free, modern specification that suits almost any build. Consider timber only where a specific look is essential and you accept the upkeep. For most new builds and renovations, the aluminium doors vs timber doors decision favours aluminium — and Coetz™ supplies the full range of aluminium doors direct across South Africa.
Why aluminium is the modern choice
Across windows, doors and shopfronts, aluminium has become the default specification for good reasons: it is strong yet slim, rust-free, and needs no painting, so it keeps its looks with almost no maintenance. Modern powder-coated finishes hold their colour for decades in harsh South African sun, and aluminium is fully recyclable. For homeowners, developers and commercial projects alike, it delivers a clean, contemporary result that lasts.
Supplied direct across South Africa
Coetz™ supplies aluminium windows and doors factory-direct and supply-only, delivered nationwide, and makes custom shopfronts that MC Automations, our parent company, installs. Standard sizes ship fast; custom orders are made to measure with clear lead times, and we provide fitting guidance for your installer.
Is aluminium better in the aluminium doors vs timber doors comparison?
For most homes, yes. In the aluminium doors vs timber doors comparison aluminium wins on maintenance, colour retention and durability, with no rust and no repainting.
Choosing between aluminium doors vs timber doors
When you compare aluminium doors vs timber doors, these points usually decide it:
- Maintenance. Aluminium needs washing, not repainting, and does not rot, swell or rust.
- Strength and sightlines. Aluminium is strong enough for slim frames and large glass panels.
- Colours. White, Bronze, Charcoal, Black or Natural Anodised; Black costs about 10% more and Natural Anodised about 20% more.
- Glass. Every Coetz™ unit has 6.38 mm clear laminated safety glass. The exceptions are our Patio sliding doors and a few large Elite sliding door sizes, which use toughened safety glass.
- Price. Compare like for like – price aluminium in the online estimator.
Coetz™ supplies aluminium windows and doors only, nationwide. Still deciding on aluminium doors vs timber doors? See the comparison centre.