The quick answer
Both are good, modern window materials; the right one depends on the look you want, the size of the openings, the exposure and the budget. Aluminium suits large openings, slim sightlines and a contemporary look; uPVC is a cost-effective, low-maintenance choice for standard residential windows. We supply both.
Aluminium — slim, strong, architectural
Aluminium is strong, so frames can be slim and glass areas large — which is why it's the usual choice for big sliders, corner glazing and contemporary facades. It takes a durable powder-coat finish in almost any colour, copes well with sun and coastal salt, and modern systems use a thermal break for insulation. It typically costs more than uPVC.
uPVC — cost-effective and low-maintenance
uPVC is well insulated, low-maintenance and cost-effective, which makes it a sensible choice for standard-sized residential windows. Frames are bulkier than aluminium and the look is less refined, and very large openings are better suited to aluminium or timber.
How to choose — and how we supply
Weigh the opening sizes, the look you want, the exposure and the budget. For large or feature openings and a slim modern look, choose aluminium; for straightforward residential windows on a tighter budget, uPVC is hard to beat. We supply both, made to measure, and will advise per elevation. Send drawings or a window schedule for a quote.
Common questions
Is aluminium better than uPVC?
Neither is simply 'better' — aluminium gives slimmer frames, larger glass areas and a more architectural look and copes well with sun and salt; uPVC is more cost-effective and low-maintenance for standard windows. The right choice depends on the openings, the look and the budget.
Are aluminium windows more expensive than uPVC?
Generally yes — aluminium usually costs more than uPVC. You are paying for strength, slim sightlines, finish options and large-opening capability. We price both against your schedule so you can compare.
Which is better insulated?
Both can be well insulated. uPVC is naturally a good insulator; modern aluminium uses a thermal break to achieve strong performance. In both cases the glazing — double glazing, low-E and solar-control coatings — does much of the work and is specified for the building.
Can I mix aluminium and uPVC on one project?
Yes. It is common to use aluminium for feature or large openings and uPVC elsewhere to balance look and budget. We can supply a mix across one project on one order.